WO2013163963A1 - Device for sewage treatment and regenerative recycling and method thereof - Google Patents
Device for sewage treatment and regenerative recycling and method thereof Download PDFInfo
- Publication number
- WO2013163963A1 WO2013163963A1 PCT/CN2013/076367 CN2013076367W WO2013163963A1 WO 2013163963 A1 WO2013163963 A1 WO 2013163963A1 CN 2013076367 W CN2013076367 W CN 2013076367W WO 2013163963 A1 WO2013163963 A1 WO 2013163963A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- inlet
- outlet
- sludge
- pump
- Prior art date
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 146
- 238000011282 treatment Methods 0.000 title claims abstract description 132
- 238000004064 recycling Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000001172 regenerating effect Effects 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 235
- 239000010802 sludge Substances 0.000 claims abstract description 142
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 114
- 230000008929 regeneration Effects 0.000 claims abstract description 26
- 238000011069 regeneration method Methods 0.000 claims abstract description 26
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000011033 desalting Methods 0.000 claims abstract description 3
- 239000012528 membrane Substances 0.000 claims description 62
- 238000010612 desalination reaction Methods 0.000 claims description 33
- 244000005700 microbiome Species 0.000 claims description 30
- 239000003990 capacitor Substances 0.000 claims description 29
- 238000000502 dialysis Methods 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 25
- 238000009826 distribution Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000004062 sedimentation Methods 0.000 claims description 20
- 230000003197 catalytic effect Effects 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000000706 filtrate Substances 0.000 claims description 15
- 210000004027 cell Anatomy 0.000 claims description 14
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 14
- 238000005374 membrane filtration Methods 0.000 claims description 13
- 238000000108 ultra-filtration Methods 0.000 claims description 13
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 12
- 238000001471 micro-filtration Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 12
- 239000012510 hollow fiber Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 10
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 8
- 238000011001 backwashing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000004155 Chlorine dioxide Substances 0.000 claims description 7
- 239000002033 PVDF binder Substances 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 7
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005660 chlorination reaction Methods 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 6
- 230000000813 microbial effect Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 231100000719 pollutant Toxicity 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 230000003834 intracellular effect Effects 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000003828 vacuum filtration Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000012163 sequencing technique Methods 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000011133 lead Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 230000026676 system process Effects 0.000 claims description 2
- 239000004695 Polyether sulfone Substances 0.000 claims 1
- 229920006393 polyether sulfone Polymers 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 claims 1
- 238000011085 pressure filtration Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 12
- 239000000460 chlorine Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000008235 industrial water Substances 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 230000000249 desinfective effect Effects 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 210000000805 cytoplasm Anatomy 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 230000002503 metabolic effect Effects 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 238000006864 oxidative decomposition reaction Methods 0.000 description 3
- 239000011343 solid material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 208000035985 Body Odor Diseases 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 1
- 206010040904 Skin odour abnormal Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000013327 media filtration Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Definitions
- the invention relates to a sewage treatment and regeneration recycling device and a method thereof, and belongs to the field of environmental protection.
- China Patent 200410024576.8 discloses a process and special equipment for extracting reclaimed water from sewage. It is treated with enzymes and then filtered. A method of producing reclaimed water by disinfecting with ozone.
- Chinese patent CN101108760B discloses a method for recycling reclaimed water through continuous microfiltration treatment of sewage that has reached the discharge standard after biochemical treatment. It uses the tail water of biochemical effluent as the source water, passes through the swirling coagulation reaction tank, and the advection multi-dump sedimentation tank. After the materialized precipitation, it enters the intermediate pool and is pumped to the continuous microfiltration system for advanced treatment to produce reclaimed water.
- the quality of reclaimed water is not high: firstly, it is difficult to remove residual color and odor in the existing sewage purification and regeneration technology. Residual nutrients and bacteria, mold, algae, etc. remain in the reclaimed water. Temperature and light conditions will rapidly multiply, causing black body odor and water, which will cause undesirable biological scale, which will also have adverse effects on the process equipment, making the application of reclaimed water in industrial production very limited; followed by total dissolution in sewage. High in salt content and containing a large amount of calcium and magnesium salts which can form scale. When it is transported to the water process equipment through pipes, it will be damaged by long-term electrochemical corrosion, using water equipment, with calcium and magnesium salts in water. The class is continuously circulated and concentrated in the water equipment to further form scale, which may cause blockage of the water equipment.
- the traditional reclaimed water reuse technology usually uses the flocculant and bactericide to precipitate the microorganisms, colloids and solid particles in the water during the purification process of the sewage, and then passes through the sand filter, multi-media filtration and
- the membrane filtration purification process has the disadvantage of adding flocculant and disinfectant during the treatment process, which not only has large investment, high operating cost, but also causes flocculation and bactericide to cause different degrees of pollution to the environment.
- the object of the present invention is to solve the problems existing in the existing sewage recycling and recycling technology, and to provide a water quality requirement for the production process water which can overcome the poor quality of the reclaimed water in the existing sewage regeneration technology and is difficult to meet the industrial production, and has large investment and operating cost. High and secondary pollution to the environment, which can reduce sewage discharge and improve water use efficiency. Sewage treatment plant.
- Another object of the present invention is to provide a method for treating sewage and recycling.
- the sewage treatment and regeneration recycling device of the invention is provided with a biochemical system, an electrolysis system, an MBR System and advanced processing system;
- the biochemical system is used for biochemical treatment of sewage to obtain biochemical water, and the biochemical system is provided with a shut-off well, a coarse grid, a lifting pump, a fine grid, a grit chamber, a first-stage water distribution well, a primary sedimentation tank, a biological treatment equipment, Secondary water distribution well, secondary sedimentation tank and sludge return pump;
- the inlet of the intercepting well is connected to the sewage discharge outlet through the pipeline
- the outlet of the intercepting well is connected to the inlet of the coarse grid
- the outlet of the coarse grid is connected to the inlet of the lift pump
- the lift pump The outlet of the fine grille is connected to the inlet of the fine grate and the inlet of the grit chamber.
- the outlet of the grit chamber is connected to the inlet of the first water distribution well.
- the outlet of the first water distribution well is connected to the inlet of the primary sinking pool.
- the export is connected to the import of biological treatment equipment, the outlet of the biological treatment equipment is connected to the inlet of the secondary distribution well, the outlet of the secondary distribution well is connected to the inlet of the secondary sedimentation tank, and the outlet of the secondary sedimentation tank is connected with the inlet of the electrolysis system,
- the sludge outlet of the tank is connected to the inlet of the biological treatment equipment via the sludge return pump, and the other is connected to the inlet of the sludge treatment system.
- the biochemical system further includes a sludge treatment system for recycling and recycling the sludge produced by the biochemical system, and the sludge treatment system is provided with a shut-off valve, a primary sludge pump, an electrolysis machine, and a buffer tank. , secondary sludge pump, sewage pump and sludge dewatering device; the inlet of the shut-off valve is connected to the sludge outlet of the secondary settling tank through the pipeline, and the outlet of the shut-off valve is connected to the inlet of the primary sludge pump, the primary sludge pump The outlet of the electrolysis machine is exported, and the outlet of the electrolysis machine is connected to the inlet of the buffer tank.
- the water outlet of the buffer tank is connected to the water inlet of the biological treatment equipment through the sewage pump, and the buffer tank
- the sludge outlet is connected to the inlet of the sludge dewatering device through the secondary sludge pump, and the filtrate outlet of the sludge dewatering device is connected to the water inlet of the secondary settling tank through the pipeline, and the mud cake obtained by the sludge dewatering device is shipped out.
- the biological treatment device is one or a combination of two or more of an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR), a biological filter, a biological turntable or a biological contact oxidation tank. .
- SBR sequencing batch reactor
- the electrolysis machine is provided with a power source and an electrolytic cell, and the electrode in the electrolytic cell is one of graphite, titanium, iron, aluminum, zinc, copper, lead, nickel, molybdenum, chromium, metal alloy and nano catalytic inert electrode.
- the surface layer of the nano catalytic inert electrode is coated with crystal grains of 10 to 35 nm
- the metal oxide inert catalytic coating, the substrate of the nano catalytic inert electrode can be a titanium plate or a plastic plate, etc., the electrode has high electrocatalytic reactivity, can greatly reduce the overpotential of electrolysis, and reduce side reactions. happened.
- the sludge dewatering device is one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device and a membrane filtration device
- the filter press dewatering device is a belt filter press and a plate and frame filter press.
- the membrane filtration device is one of microfiltration and ultrafiltration;
- the microfiltration membrane module is one of a ceramic membrane and a metal membrane module, and
- the ultrafiltration membrane module It is one of a ceramic film and a metal film component.
- the electrolysis system is used for electrolyzing the biochemical treatment sewage, the electrolysis system is provided with a shut-off valve, a water supply pump and an electrolysis machine; the inlet of the shut-off valve is externally connected with a biochemical water discharge port, the inlet of the water supply pump is connected to the outlet of the shut-off valve, and the water supply pump The outlet of the electrolysis machine, the outlet of the electrolysis machine The inlet connection of the MBR system.
- the MBR system is used for further processing the purified sewage obtained by the electrolysis system, and the MBR system is provided with a shut-off valve and a grid.
- the inlet of the shut-off valve is connected to the outlet of the electrolysis machine of the electrolysis system, the outlet of the shut-off valve is connected to the inlet of the grid, the outlet of the grid is connected to the inlet of the MBR reaction cell, and the MBR membrane module is submerged in the MBR In the reaction tank, it is aerated by a blower and a distributed aerator.
- the filtrate outlet of the MBR reaction tank is connected to the inlet of the water pump, and the outlet of the outlet water pump is connected to the inlet of the primary reclaimed water storage tank, MBR.
- the sludge outlet of the reaction tank is connected to the inlet of the sewage pump, and the sludge is pumped to the sludge treatment system for treatment by the sewage pump;
- the MBR membrane module may be selected from a polyvinylidene fluoride (PVDF) hollow fiber membrane and polypropylene ( PP) one of a hollow fiber membrane, a polysulfone (PS) hollow fiber membrane, a polyethersulfone (PES), a polyacrylonitrile (PAN), and a polyvinyl chloride (PVC) hollow fiber membrane, the MBR
- PVDF polyvinylidene fluoride
- PP polypropylene
- PS polysulfone
- PES polyethersulfone
- PAN polyacrylonitrile
- PVC poly
- the working pressure is -1 ⁇ -50kPa, the working temperature is 5 ⁇ 45°C, and the pH is 1 ⁇ 14.
- the effluent fixed suspension can be reduced to 1mg/L and the turbidity can be reduced to below 1NTU.
- the system can completely remove bacteria and E. coli from sewage, and the coliform bacteria in the effluent is 0, while the total number of colonies is less than 1 CFU/mL. ; said The MBR cleaning system is used to clean the MBR membrane module.
- the MBR cleaning system is provided with a cleaning liquid tank, a backwashing pump and a shut-off valve; the outlet of the cleaning liquid tank is connected to the inlet of the backwashing pump, and the outlet of the backwashing pump is connected to the inlet of the shut-off valve. Valve outlet MBR system.
- the depth processing system is used to MBR
- the primary reclaimed water obtained by the system is subjected to capacitive adsorption desalination and separation to obtain dialysis water and concentrated water, and the dialysis water is further purified to obtain reclaimed water.
- the advanced treatment system is provided with a shut-off valve, a lift pump, a security filter, a water supply pump, a capacitor desalination device, Disinfection device, reclaimed water storage tank and concentrated water booster pump; inlet of the shut-off valve MBR
- the outlet of the system primary reclaimed water storage tank, the outlet of the shut-off valve is connected to the inlet of the lift pump, the outlet of the lift pump is connected to the inlet of the security filter, the outlet of the security filter is connected to the inlet of the water supply pump, and the inlet of the water supply pump is connected to the inlet of the capacitor desalination device.
- the dialysis water outlet of the capacitor desalination device is connected to the inlet of the sterilizing device, and the outlet of the sterilizing device is connected to the inlet of the reclaimed water storage tank; the advanced treatment system will MBR
- the primary reclaimed water obtained by the system is pumped into the capacitor desalination device by the water supply pump through the security filter, and the dialysis water and the concentrated water are treated by the capacitor desalination device.
- the dialysis water is disinfected by the disinfection device and then enters the storage tank to obtain the reclaimed water; the concentrated water is increased by the concentrated water.
- the pressure pump is returned to the electrolytic purification system for recycling;
- the disinfection device is one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer;
- the electrolysis machine is provided with a power source and an electrolysis tank
- the chlorination system is provided with a chlorinator, a contact tank, a mixing device and a chlorine bottle;
- the ozone sterilizing device is provided with an ozone generator, an ozone contact pool and a tail gas ozone decomposer.
- the sewage treatment and regeneration recycling method of the present invention comprises the following steps:
- Biochemical treatment The sewage enters the biochemical system through the intercepting well, and reduces the pollutants such as oil, scum, SS, COD and BOD in the sewage to make the various indicators reach GB.
- the third-level emission standard of 18918-2002 "Emission Standards for Pollutants in Urban Sewage Treatment Plants" will be entered into the subsequent treatment process;
- step 2) Electrolysis: After the biochemical effluent is extracted by a water pump, it is input into an electrolysis machine for electrolysis; in step 2), the electrolysis is to electrolyze the biochemical effluent to generate nascent chlorine [Cl], hydroxyl [OH] and The nascent oxygen [O] is used to oxidize and decompose organic matter such as animal and vegetable oil, petroleum, anionic surfactant, colored matter and ammonia nitrogen in the sewage, and kills microorganisms in the sewage, and at the same time, makes the sewage in the sewage
- the suspended matter, the colloid and the charged particles aggregate to form larger particles;
- the electrolytic electrolytic cell can have an operating voltage of 2 to 250 V, and the voltage between two adjacent electrodes can be 2 to 18 V, and the most between the two adjacent electrodes good voltage is 3 ⁇ 8V, the current density may be 3 ⁇ 400mA / cm 2, most preferably a current density of 50 ⁇ 210mA / cm 2, through
- MBR system filtration the purified sewage treated by the electrolysis system flows into the MBR system through the pipeline for MBR
- the system processes the separated primary reclaimed water; in step 3), the MBR
- the system is a new type of wastewater treatment technology combining membrane separation technology and biotechnology. It uses membrane separation equipment to intercept activated sludge and macromolecular organic substances in biochemical reaction tanks. It has strong adaptability, high biochemical efficiency and anti-load shock. Strong ability, small footprint, good processing effect, etc.
- Capacitor desalination and disinfection the primary reclaimed water filtered by the MBR system is pumped into the capacitor desalination device through the water supply pump, and the dialysis water and the concentrated water are separated by desalting, and the dialysis water passes through the disinfection device and enters the storage tank to obtain the reclaimed water; in step 4)
- the operating condition of the capacitor desalination is a DC voltage of 110V/m ⁇ 2 ⁇ 10 6 V/m.
- Sludge treatment The sludge produced by the biochemical system enters the sludge treatment system, destroys the structure of the sludge through electrolysis and contact reaction, breaks the cell wall of the microorganism, and the microbial intracellular material flows out into the water phase, making the refractory solidity
- the substance becomes a soluble substance which is easily degraded, and then is returned to the biological treatment equipment through the sewage pump to be recycled for the microorganisms; the excess sludge enters the sludge dewatering device to obtain the filtrate and the mud cake, and the filtrate is returned to the second sediment through the pipeline.
- the sewage treated by the invention has good quality of reclaimed water, and the indexes are far superior to GB/T19923-2005.
- Urban sewage recycling The standard of industrial water quality can be used as the industrial production process water in various industries, that is, it can be directly applied to the industrial production process to achieve the purpose of clean production.
- the invention can also treat the sludge, dissolve and oxidize the organic components in the sludge, and then reflux to the biological treatment equipment for recycling, so that the microbial cell wall in the sludge is destroyed, the cytoplasm is dissolved, and the sludge is improved.
- Biodegradable which facilitates the degradation of subsequent microorganisms, thereby reducing the excess sludge production, and the dissolved cytoplasm can also be used as a carbon source of microorganisms to supplement its nutrients, thereby increasing biological activity, improving the efficiency of biological treatment of sewage, and achieving sewage and sewage.
- the effect of double treatment of mud is a simple compound that produces a high quality of sewage.
- the technical route is used to solve the technical problems of the existing sewage treatment and recycling and recycling, and has the following advantages:
- the method for electrolytically treating sewage has the following outstanding effects: (1) Electrolysis under the action of electricity to open or break the macromolecules remaining in the sewage to enhance the biodegradability of the sewage; (2) the nascent chlorine [Cl], hydroxyl [OH] and nascent Oxygen [O] Oxidative decomposition of organic matter, rapid reduction of COD; (3) oxidative decomposition of ammonia nitrogen in the sewage, further oxidation of residual ammonia nitrogen, ammonia nitrogen removal rate of up to 80 ⁇ 90%, while eliminating odor in water.
- High water reuse rate and low cost the reuse rate of sewage is as high as 70% to 90%, the discharge of sewage is low, and the energy consumption is low.
- the production cost of high-purity reclaimed water is less than 1 yuan/ton, which is much lower than the current tap water price;
- High water quality for reuse The recycled water produced by this technical route is colorless and odorless.
- the main indicators of water quality are shown in Table 1. , can meet the water quality requirements of industrial water in various industries;
- Table 1 Reclaimed water quality indicators project concentration project concentration pH value 6.5 ⁇ 8.5 Conductivity ( ⁇ S/cm ) ⁇ 300 Turbidity (NTU) ⁇ 1 Chloride (mg/L) ⁇ 50 Chromaticity (times) ⁇ 3 Total iron (mg/L) ⁇ 0.05 COD Cr ( mg/L ) ⁇ 10 Manganese (mg/L) ⁇ 0.1 SS ( mg/L ) ⁇ 1 Free chlorine (mg/L) ⁇ 0.1 Total alkalinity (mg/L) ⁇ 50 (based on calcium carbonate hardness) Total hardness (mg/L) ⁇ 10 (based on calcium carbonate hardness)
- the electrolytic sludge treated by the invention has the following outstanding effects: (1) destroying the sludge structure, under the action of the electric field, the sludge floc structure can be changed to accelerate the hydrolysis of the sludge; (2) inhibiting and killing the sewage Microorganisms and viruses in the mud, a large number of strong oxidizing free radicals are generated during the electrolysis process, which not only penetrates into the cells of the microorganisms, but also blocks the microorganisms.
- FIG. 1 is a schematic view showing the structural composition of an embodiment of a sewage treatment and regeneration recycling apparatus according to the present invention.
- the invention designs the sewage purification and regeneration recycling process after the in-depth systematic comparative study on the composition, properties and existing treatment schemes of the biochemical effluent of the existing sewage treatment plant, through the biochemical system, electrolysis, MBR system
- the combination of processes such as capacitor desalination forms a sewage treatment and regeneration recycling device and method thereof.
- an embodiment of a sewage treatment and regeneration recycling device and a method thereof according to the present invention are provided with:
- Biochemical system is used for biochemical treatment of sewage to obtain biochemical water.
- Biochemical system is equipped with intercepting well 1, coarse grid 2, lifting pump 3, fine grid 4, grit chamber 5, first-level water distribution well 6, initial Shenchi 7, biological treatment equipment 8, secondary distribution well 9, secondary sedimentation tank 10, sludge return pump 11 and shut-off valve 12; the inlet of the intercepting well 1 is connected to the sewage discharge outlet through the pipeline, and the outlet of the intercepting well 1 is thickened
- the inlet of the grille 2 is connected to the inlet of the lift pump 3, the outlet of the lift pump 3 is connected to the inlet of the fine grille 4, the outlet of the fine grille 4 is connected to the inlet of the grit chamber 5, and the grit chamber 5
- the outlet is connected to the inlet of the first water distribution well 6, the outlet of the first water distribution well 6 is connected to the inlet of the primary sedimentation tank 7, the outlet of the primary sedimentation tank 7 is connected to the inlet of the biological treatment equipment 8, and the outlet of the
- the sludge treatment system is used to regenerate and recycle the sludge produced by the biochemical system.
- the sludge treatment system is provided with a shut-off valve 21, a primary sludge pump 22, an electrolysis machine 23, a buffer tank 24, and a shut-off valve. 25.
- the inlet of the pump 22, the outlet of the primary sludge pump 22 is connected to the inlet of the electrolysis machine 23, the outlet of the electrolysis machine 23 is connected to the inlet of the buffer tank 24, and the outlet of the buffer tank 24 is sequentially biologically treated by the sewage pump 27 and the shut-off valve 28.
- the water inlet of the device 8 and the sludge outlet of the buffer tank 24 are sequentially connected to the inlet of the sludge dewatering device 29 via the shut-off valve 25 and the secondary sludge pump 26, and the filtrate outlet of the sludge dewatering device 29 passes through the pipeline and the secondary settling tank.
- the water inlet of the 10 is connected, and the mud cake obtained by the sludge dewatering device 29 is shipped out.
- the electrode of the electrolysis machine 23 is a nano catalytic inertial electrode, and the surface layer thereof is coated with a metal oxide inert catalytic coating having a crystal grain size of 10 to 35 nm, and the substrate of the nano catalytic inert electrode may be a titanium plate or a plastic plate.
- the electrode has high electrocatalytic reactivity, can greatly reduce the overpotential of electrolysis, and reduce the occurrence of side reactions.
- Electrolysis system The electrolysis system is used for electrolytic treatment, and the electrolysis system is provided with a shutoff valve 31, a water supply pump 32, and an electrolysis machine 33.
- the inlet of the shut-off valve 31 is externally connected to the biochemical water discharge port, the inlet of the water supply pump 32 is connected to the outlet of the shut-off valve 31, the outlet of the water supply pump 32 is connected to the inlet of the electrolysis machine 33, and the outlet of the electrolysis machine 33 is connected with the water inlet of the MBR system.
- the surface layer of the nanocatalytic inert electrode of the electrolysis machine 33 of the electrolysis system is coated with a metal oxide inert catalytic coating having a crystal grain size of 10 to 35 nm, and the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate.
- the MBR system is used to further treat the purified sewage obtained from the electrolysis system.
- the MBR system is provided with a shutoff valve 41, a grille 42, an MBR membrane module 43, a blower 44, an aerator 45, an MBR reaction tank 46, a sewage pump 47, an outlet water pump 48, and a primary reclaimed water storage tank 49.
- the inlet of the shutoff valve 41 is connected to the outlet of the electrolysis machine 33, the outlet of the shutoff valve 41 is connected to the inlet of the grille 42, and the outlet of the grille 42 is sequentially passed through the MBR reaction tank 46 and the outlet pump 48 to enter the primary reclaimed water storage tank 49, and the MBR reaction tank 46
- the sludge outlet is connected to the inlet of the sewage pump 47, and the sludge is pumped by the sewage pump 47 to the sludge treatment system for treatment.
- the MBR cleaning system is used to clean the MBR system, and is provided with a cleaning liquid tank 51, a backwash pump 52, and a shutoff valve 53.
- the outlet of the cleaning liquid tank 51 is connected to the inlet of the backwashing pump 52
- the outlet of the backwashing pump 52 is connected to the inlet of the shutoff valve 53
- the outlet of the shutoff valve 53 is connected to the outlet of the MBR reaction tank 43.
- the advanced treatment system is used for capacitive adsorption desalination and separation of the primary reclaimed water treated by the MBR system to obtain dialysis water and concentrated water.
- the dialysis water is further purified by disinfection, and the deep treatment system is provided with a shut-off valve 61 and a lift pump. 62.
- the inlet of the shutoff valve 61 is connected to the MBR system
- the outlet of the primary reclaimed water storage tank 49, the outlet of the shut-off valve 61 is connected to the inlet of the lift pump 62, the outlet of the lift pump 62 is connected to the inlet of the security filter 63, the outlet of the security filter 63 is connected to the inlet of the water supply pump 64, and the inlet of the water supply pump 64.
- the dialysis water outlet of the capacitor desalination device 65 is connected to the inlet of the sterilizing device 67 via the shutoff valve 66, and the outlet of the sterilizing device 67 is connected to the inlet of the reclaimed water storage tank 69 via the shutoff valve 68.
- the operating conditions of the capacitive desalination device 65 of the deep processing system are DC voltages of 110 V/m to 2 x 106 V/m.
- the water quality of the sewage is shown in Table 2.
- Step 1 Biochemical treatment: The sewage enters the biochemical system through the intercepting well 1 and passes through the coarse grid 2, the lift pump 3 and the fine grid. 4, grit chamber 5, first-stage water distribution well 6, primary sedimentation tank 7, biological treatment equipment 8, secondary distribution well 9 and secondary sedimentation tank 10, so that its indicators reach GB 18918-2002 The third-level emission standard of the “Emission Standards for Pollutants in Urban Sewage Treatment Plants” will enter the subsequent treatment process.
- Step 2 Electrolysis: start the water supply pump 32, and the sewage enters the electrolysis machine 33 through the shut-off valve 31 for electrolysis.
- the surface of the nanocatalytic inert electrode of the electrode of the electrolysis machine 33 for electrolysis is coated with a crystal grain of 10 nm.
- the metal oxide inert catalytic coating, the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate.
- the electrolysis has an operating voltage of 6 V, a voltage between the two electrodes of 3.5 to 8.0 V, and a current density of 350 mA/cm 2 .
- Step 3 MBR system filtration separation: the purified sewage after electrolysis passes through the grid 41 The solid impurities and colloids of the larger particles generated by electrolysis in the sewage are removed by filtration, and then enter the MBR reaction tank 46 to start the blower 44 and the aerator 45. After the aeration is oxidized, the water pump is started. Under negative pressure, water molecules are separated by the MBR membrane module 43 to obtain dialysis water, and the dialysis water is collected into the primary reclaimed water storage tank 49.
- the membrane material of the MBR system is a polyvinylidene fluoride (PVDF) hollow fiber membrane having a pore size of 0.2 ⁇ m.
- PVDF polyvinylidene fluoride
- the system has a working pressure of -25 to -26 kPa, an operating temperature of 15 to 40 °C, and a pH of 5 to 9.
- Step 4 Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is passed through the shut-off valve 61 and the lift pump. 62, security filter 63, water supply pump 64 pumped into the capacitor desalination device 65, desalinated separation of dialysis water and concentrated water, dialysis water after electrolysis machine 67 into the reclaimed water storage tank 69 Reclaimed water.
- the reuse rate of sewage is 87%, and the water quality of reclaimed water is shown in Table 3.
- the operating condition of the capacitor desalination device 65 is a DC voltage of 110 V/m to 2 ⁇ 10 6 V/m.
- the above electrolysis machine 67 For disinfection devices.
- the disinfecting device can be one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer.
- Step 5 Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system and is pumped into the electrolysis machine 23 through the primary sludge pump 22 for electrolysis.
- the surface layer of the nano catalytic inert electrode of the electrode of the electrolysis machine 23 is coated with a metal oxide inert catalytic coating having a crystal grain size of 32 to 35 nm, and the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate.
- the operating voltage is 12V
- the voltage between the two poles is 3.5 to 8.0V
- the current density is 200mA/cm 2 .
- the sludge after electrolysis enters the buffer tank 24, so that the radical generated by the electrolysis further contacts the sludge, destroys the structure of the sludge, breaks the cell wall of the microorganism, changes the structure of the floc, and the intracellular substance flows out.
- the hardly degradable solid material becomes a readily degradable dissolved substance, and then is returned to the biological treatment device 8 through the sewage pump 27, which is used for the microbial recycling, not only can supplement the carbon source for the microorganism, but can be supplemented by the microorganism
- Metabolic reuse can improve the efficiency of biological treatment of sewage; and it can decompose the dissolved substances produced by cracking bacteria through the decomposition reaction of microorganisms, thereby achieving the purpose of reducing the excess sludge production.
- the excess sludge passes through the secondary sludge pump 26 and enters the centrifugal dewatering unit 29 to obtain the filtrate and the mud cake.
- the filtrate is returned to the secondary settling tank 10 through the pipeline, and the mud cake is transported.
- the above centrifugal dewatering device 29 It is a sludge dewatering device.
- the sludge dewatering device may be one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device, and a membrane filtration device
- the filter press dewatering device is a belt filter press, a plate and frame filter press 2
- the membrane filtration device is one of microfiltration and ultrafiltration
- the microfiltration membrane module is one of a ceramic membrane and a metal membrane module
- the ultrafiltration The membrane module is one of a ceramic membrane and a metal membrane module.
- the water quality of the sewage is shown in Table 4.
- Step 1 Biochemical treatment: The sewage enters the biochemical system through the intercepting well 1 and passes through the coarse grid 2, the lift pump 3 and the fine grid. 4, grit chamber 5, first-stage water distribution well 6, primary sedimentation tank 7, biological treatment equipment 8, secondary distribution well 9 and secondary sedimentation tank 10, so that its indicators reach GB 18918-2002 The third-level emission standard of the “Emission Standards for Pollutants in Urban Sewage Treatment Plants” will enter the subsequent treatment process.
- the above biological treatment equipment 8 For the oxidation ditch.
- the biological treatment equipment can be an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR) One or a combination of two or more of a biofilter, a biological turntable, and a biological contact oxidation cell.
- SBR sequencing batch reactor
- Step 2 Electrolysis: The water supply pump 32 is started, and the sewage enters the electrolysis machine 33 through the shut-off valve 31 for electrolysis.
- the electrode of the electrolysis machine 33 is a nanocatalytic inert electrode whose surface layer is coated with a metal oxide inert catalytic coating having a crystal grain size of 15 nm, and the substrate of the nano catalytic inert electrode is a titanium plate.
- the electrolysis has an operating voltage of 100 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 3 mA/cm 2 .
- the above nanocatalytic inert material is an electrode material of an electrolysis machine.
- the electrode material may be one of graphite, titanium, iron, aluminum, zinc, copper, lead, nickel, molybdenum, chromium, alloys, and nanocatalytic inert materials.
- Step 3 MBR system filtration separation: the purified sewage after electrolysis passes through the grid 41 The solid impurities and colloids of the larger particles generated by electrolysis in the sewage are removed by filtration, and then enter the MBR reaction tank 46 to start the blower 44 and the aerator 45. After the aeration is oxidized, the water pump is started. Under negative pressure, water molecules are separated by the MBR membrane module 43 to obtain dialysis water, and the dialysis water is collected into the primary reclaimed water storage tank 49.
- the membrane material of the MBR system is a polypropylene (PP) hollow fiber membrane having a pore size of 0.1 ⁇ m.
- MBR polypropylene
- the system has a working pressure of -20 to -23 kPa, an operating temperature of 5 to 45 °C, and a pH of 5 to 9.
- Step 4 Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is passed through the shut-off valve 61 and the lift pump. 62, security filter 63, water supply pump 64 pumped into the capacitor desalination device 65, desalinated separation of dialysis water and concentrated water, dialysis water through the ozone disinfection system 67 and then into the reclaimed water storage tank 69 Reclaimed water.
- the reuse rate of sewage is 80%, and the water quality of reclaimed water is shown in Table 5.
- the operating condition of the capacitor desalination device 65 is a DC voltage of 110 V/m to 2 ⁇ 10 6 V/m.
- the above ozone disinfection system 67 For disinfection devices.
- the disinfecting device can be one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer.
- Step 5 Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system and is pumped into the electrolysis machine 23 through the primary sludge pump 22 for electrolysis.
- the electrolysis machine 23 has an operating voltage of 100 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 260 mA/cm 2 .
- the sludge after electrolysis enters the buffer tank 24, so that the radical generated by the electrolysis further contacts the sludge, destroys the structure of the sludge, breaks the cell wall of the microorganism, changes the structure of the floc, and the intracellular substance flows out.
- the hardly degradable solid material becomes a readily degradable dissolved substance, and then is returned to the biological treatment device 8 through the sewage pump 27, which is used for the microbial recycling, not only can supplement the carbon source for the microorganism, but can be supplemented by the microorganism
- Metabolic reuse can improve the efficiency of biological treatment of sewage; and it can decompose the dissolved substances produced by cracking bacteria through the decomposition reaction of microorganisms, thereby achieving the purpose of reducing the excess sludge production.
- the excess sludge passes through the secondary sludge pump 26 and enters the belt filter press 29 to obtain the filtrate and the mud cake.
- the filtrate is returned to the secondary settling tank 10 through the pipeline, and the mud cake is transported.
- the above belt filter press 29 It is a sludge dewatering device.
- the sludge dewatering device may be one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device, and a membrane filtration device
- the filter press dewatering device is a belt filter press, a plate and frame filter press 2
- the membrane filtration device is one of microfiltration and ultrafiltration
- the microfiltration membrane module is one of a ceramic membrane and a metal membrane module
- the ultrafiltration The membrane module is one of a ceramic membrane and a metal membrane module.
- the water quality of the sewage is shown in Table 6.
- Step 1 Biochemical treatment: The sewage enters the biochemical system through the intercepting well 1 and passes through the coarse grid 2, the lift pump 3 and the fine grid. 4, grit chamber 5, first-stage water distribution well 6, primary sedimentation tank 7, biological treatment equipment 8, secondary distribution well 9 and secondary sedimentation tank 10, so that its indicators reach GB 18918-2002 The third-level emission standard of the “Emission Standards for Pollutants in Urban Sewage Treatment Plants” will enter the subsequent treatment process.
- the above biological treatment equipment 8 It is a combination of an anaerobic tank and a biological contact oxidation tank.
- the biological treatment equipment can be an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR) One or a combination of two or more of a biofilter, a biological turntable, and a biological contact oxidation cell.
- SBR sequencing batch reactor
- Step 2 Electrolysis: The water supply pump 32 is started, and the sewage enters the electrolysis machine 33 through the shut-off valve 31 for electrolysis.
- the electrolysis has an operating voltage of 220 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 15 mA/cm 2 .
- Step 3 MBR system filtration separation: the purified sewage after electrolysis passes through the grid 41 The solid impurities and colloids of the larger particles generated by electrolysis in the sewage are removed by filtration, and then enter the MBR reaction tank 46 to start the blower 44 and the aerator 45. After the aeration is oxidized, the water pump is started. Under negative pressure, water molecules are separated by the MBR membrane module 43 to obtain dialysis water, and the dialysis water is collected into the primary reclaimed water storage tank 49.
- the membrane material of the MBR system is a polyvinylidene fluoride (PVDF) hollow fiber membrane having a pore size of 0.2 ⁇ m.
- PVDF polyvinylidene fluoride
- the system has a working pressure of -1 to -50 kPa, an operating temperature of 5 to 45 °C, and a pH of 1 to 14.
- Step 4 Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is passed through the shut-off valve 61 and the lift pump. 62, security filter 63, water supply pump 64 pumped into the capacitor desalination device 65, desalinated separation of dialysis water and concentrated water, dialysis water through the chlorine dioxide sterilizer 67 and then into the reclaimed water storage tank 69 Reclaimed water.
- the reuse rate of sewage is 74%, and the water quality of reclaimed water is shown in Table 7.
- the operating condition of the capacitor desalination device 65 is a DC voltage of 110 V/m to 2 ⁇ 10 6 V/m.
- the above chlorine dioxide sterilizer 67 For disinfection devices.
- the disinfecting device can be one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer.
- Step 5 Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system and is pumped into the electrolysis machine 23 through the primary sludge pump 22 for electrolysis.
- the electrolysis machine 23 has an operating voltage of 220 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 15 mA/cm 2 .
- the sludge after electrolysis enters the buffer tank 24, so that the radical generated by the electrolysis further contacts the sludge, destroys the structure of the sludge, breaks the cell wall of the microorganism, changes the structure of the floc, and the intracellular substance flows out.
- the hardly degradable solid material becomes a readily degradable dissolved substance, and then is returned to the biological treatment device 8 through the sewage pump 27, which is used for the microbial recycling, not only can supplement the carbon source for the microorganism, but can be supplemented by the microorganism
- Metabolic reuse can improve the efficiency of biological treatment of sewage; and it can decompose the dissolved substances produced by cracking bacteria through the decomposition reaction of microorganisms, thereby achieving the purpose of reducing the excess sludge production.
- the excess sludge enters the ultrafiltration membrane filtration unit 29 through the secondary sludge pump 26 to obtain the filtrate and the mud cake, and the filtrate is returned to the secondary sedimentation tank 10 through the pipeline, and the mud cake is shipped.
- the ultrafiltration membrane module is a metal membrane module.
- the above ultrafiltration membrane filtration device 29 It is a sludge dewatering device.
- the sludge dewatering device may be one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device, and a membrane filtration device
- the filter press dewatering device is a belt filter press, a plate and frame filter press 2
- the membrane filtration device is one of microfiltration and ultrafiltration
- the microfiltration membrane module is one of a ceramic membrane and a metal membrane module
- the ultrafiltration The membrane module is one of a ceramic membrane and a metal membrane module.
- the present invention is easy to implement industrially and has good industrial applicability.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A device for sewage treatment and regenerative recycling, comprising a biochemical system, an electrolysis system, an MBR system and a deep processing system. A method for sewage treatment and regenerative recycling comprises the following steps: (1) biochemical treatment; (2) electrolysis; (3) MBR system filtering; (4) capacitance desalting and sterilization; (5) sludge treatment. The device and method can overcome the defects in the existing sewage regeneration technology such as that the quality of the regenerated water is poor, it is difficult to meet the water quality requirements for water consumption, the investment is large, the operation cost is high and the secondary pollution to the environment is caused. The sewage discharge can be reduced. The utilization efficiency of water is improved. Meanwhile, the regeneration and recycling of sludge are realized and the harm possibly caused by the sludge to the environment is eliminated.
Description
本发明涉及一种污水处理及再生循环利用装置及其方法,属于环境保护领域。 The invention relates to a sewage treatment and regeneration recycling device and a method thereof, and belongs to the field of environmental protection.
水资源与环境污染问题日益受到人类社会的重视,一方面淡水用量不断增加,水资源日益紧缺,另一方面污水排放量日益增多,对环境污染日益严重,因此,污水处理和再生资源化循环利用越来越受到各国的重视。中国是一个水资源严重缺乏的国家,人均淡水资源占有量仅为世界平均水平的四分之一,是世界上最缺水的
13 个国家之一,目前,在全国 600 多座城市中,有 400
多座城市缺水,因此污水再生循环利用成为解决淡水资源不足的关键。但是,我国当前的污水处理多为达标排放,成熟的污水再生循环利用技术不多,应用到工程实践的更是少之又少,每天都有大量的污水经过处理达标后就直接排入江河、湖泊、海域,既造成了水资源的浪费又污染了环境,长此以往必将造成水资源的不可持续发展。据介绍,在我国城市水资源总消耗中,工业用水大约占
2/3 ,如将污水经过再生处理后用于工业用水,在节水方面将有很大的潜力,等于增加了 2/3 的淡水资源总量。
Water resources and environmental pollution are increasingly being valued by human society. On the one hand, the use of fresh water is increasing, water resources are becoming increasingly scarce, and on the other hand, sewage discharge is increasing, and environmental pollution is becoming more and more serious. Therefore, sewage treatment and recycling and recycling are utilized. More and more attention is being paid from all countries. China is a country with a serious shortage of water resources. The per capita freshwater resources are only one-fourth of the world average. It is the world's most water-deficient.
One of the 13 countries, currently 400 out of more than 600 cities across the country
Many cities lack water, so the recycling of sewage is the key to solving the shortage of fresh water resources. However, most of China's current sewage treatment is up to standard discharge, and there are not many mature wastewater recycling technologies. The application of engineering wastewater is rare. Every day, a large amount of sewage is discharged into the river directly after being treated. Lakes and sea areas not only cause waste of water resources but also pollute the environment. In the long run, water resources will be unsustainable. According to reports, in the total consumption of urban water resources in China, industrial water accounts for about
2/3, if the sewage is recycled for industrial water, it will have great potential in water saving, which is equivalent to an increase of 2/3 of the total fresh water resources.
近年来,我国环境工作者在污水处理,再生循环利用方面作了大量工作,中国专利200410024576.8公开了'一种污水抽取再生水的工艺和专用设备',它是将污水经过酶处理后,再经过滤和臭氧消毒而生产再生水的方法。中国专利CN101108760B公开了经过生化处理后达到排放标准的污水经过连续微滤处理的再生水循环利用方法,它是将生化出水的尾水作为源水,经过旋流混凝反应池、平流多斗沉淀池物化沉淀后进入中间水池,由提升泵送至连续微滤系统进行深度处理而生产再生水的方法。尽管污水再生的方法已有不少,各级政府和广大环境工作者在污水再生循环利用方面也做了大量的工作,但是污水回用量在工业用水中所占比例却不到2%,污水回用的领域也只限于对水质要求不高的行业,如工业冲渣除尘水、冷却水、企业内部绿化、冲厕等杂用,在水质要求较高的生产工艺用水方面则尝试很少。分析其原因,主要因为污水在工业上的循环利用存在如下问题:
In recent years, China's environmental workers have done a lot of work in wastewater treatment and recycling. China Patent 200410024576.8 discloses a process and special equipment for extracting reclaimed water from sewage. It is treated with enzymes and then filtered. A method of producing reclaimed water by disinfecting with ozone. Chinese patent CN101108760B discloses a method for recycling reclaimed water through continuous microfiltration treatment of sewage that has reached the discharge standard after biochemical treatment. It uses the tail water of biochemical effluent as the source water, passes through the swirling coagulation reaction tank, and the advection multi-dump sedimentation tank. After the materialized precipitation, it enters the intermediate pool and is pumped to the continuous microfiltration system for advanced treatment to produce reclaimed water. Although there are many methods for wastewater reclamation, governments at all levels and environmental workers have done a lot of work in the recycling of wastewater, but the proportion of wastewater reuse in industrial water is less than 2%. The fields used are limited to industries that do not require high water quality, such as industrial slag dedusting water, cooling water, internal greening, flushing, etc., and few attempts are made in production process water with high water quality requirements. The reason for the analysis is mainly due to the following problems in the recycling of sewage in the industry:
1、再生水质量不高:首先表现在现有的污水净化再生技术难以去除污水中的残留色度和臭味,再生水中还残留有各种营养物质和细菌、霉菌、藻类等,遇到适宜的温度、光照条件即会迅速繁殖导致水体发黑发臭,并产生难以处理的生物垢,对工艺设备也会造成不良影响,使再生水在工业生产中应用受到很大局限;其次是污水中总溶解盐含量高,并含有大量可以形成水垢的钙镁盐类物质,当其通过管道被输送到用水工艺设备时,会因长期的电化学腐蚀作用,使用水设备受到损坏,随着水中钙镁盐类在用水设备中不断地循环浓缩,进一步形成水垢,会导致用水设备阻塞。
1. The quality of reclaimed water is not high: firstly, it is difficult to remove residual color and odor in the existing sewage purification and regeneration technology. Residual nutrients and bacteria, mold, algae, etc. remain in the reclaimed water. Temperature and light conditions will rapidly multiply, causing black body odor and water, which will cause undesirable biological scale, which will also have adverse effects on the process equipment, making the application of reclaimed water in industrial production very limited; followed by total dissolution in sewage. High in salt content and containing a large amount of calcium and magnesium salts which can form scale. When it is transported to the water process equipment through pipes, it will be damaged by long-term electrochemical corrosion, using water equipment, with calcium and magnesium salts in water. The class is continuously circulated and concentrated in the water equipment to further form scale, which may cause blockage of the water equipment.
2、经济上不合算:生化后经过多级膜处理,虽然能够实现污水再生,但是一次性设备投资大,运行成本高于现行自来水价,从经济合算的标准衡量,仍然不尽如人意,再生水处理循环利用无法实现规模化。
2, economically uneconomical: after biochemical treatment through multi-stage membrane, although the sewage can be regenerated, but the one-time equipment investment is large, the operating cost is higher than the current tap water price, from the economical standard, still not satisfactory, reclaimed water Processing recycling can not achieve scale.
3、二次污染:传统的再生水回用技术在对污水的净化过程中通常采用加入絮凝剂和杀菌剂对水中微生物、胶体物、固体颗粒进行沉淀后,再经过砂滤过滤、多介质过滤和膜过滤的净化工艺,其缺点是处理过程中要加入絮凝剂和消毒杀菌剂,不仅投资大、运行成本较高,而且加入的絮凝剂和杀菌剂还对环境造成不同程度的污染。
3. Secondary pollution: The traditional reclaimed water reuse technology usually uses the flocculant and bactericide to precipitate the microorganisms, colloids and solid particles in the water during the purification process of the sewage, and then passes through the sand filter, multi-media filtration and The membrane filtration purification process has the disadvantage of adding flocculant and disinfectant during the treatment process, which not only has large investment, high operating cost, but also causes flocculation and bactericide to cause different degrees of pollution to the environment.
由以上问题可知,研究开发适合中国经济现状和发展水平的安全、可靠、高效、低能耗、低投资、低成本的再生水循环利用技术和配套设备,为再生水回用的规模化、产业化发展奠定坚实的基础成为一项迫在眉睫的任务。From the above problems, we can study and develop safe, reliable, high-efficiency, low-energy, low-investment, low-cost reclaimed water recycling technologies and supporting equipment suitable for China's economic status and development level, laying the foundation for the scale and industrialization of recycled water reuse. A solid foundation has become an urgent task.
本发明的目的在于针对现有污水再生循环利用技术存在的问题,提供一种可克服现有污水再生技术中再生水质量较差、难以满足工业生产的生产工艺用水水质要求,且投资大、运行成本高和对环境产生二次污染等缺陷,可减少污水排放,提高水的利用效率的
污水处理装置 。
The object of the present invention is to solve the problems existing in the existing sewage recycling and recycling technology, and to provide a water quality requirement for the production process water which can overcome the poor quality of the reclaimed water in the existing sewage regeneration technology and is difficult to meet the industrial production, and has large investment and operating cost. High and secondary pollution to the environment, which can reduce sewage discharge and improve water use efficiency.
Sewage treatment plant.
本发明的另一目的在于提供一种 污水处理及再生循环利用方法。 Another object of the present invention is to provide a method for treating sewage and recycling.
本发明所述 污水处理及再生循环利用装置 设有生化系统、电解系统、 MBR
系统和深度处理系统; The sewage treatment and regeneration recycling device of the invention is provided with a biochemical system, an electrolysis system, an MBR
System and advanced processing system;
所述生化系统用于对污水进行生化处理得到生化出水,生化系统设有截流井、粗格栅、提升泵、细格栅、沉砂池、一级配水井、初沉池、生物处理设备、二级配水井、二沉池和污泥回流泵;截流井的进口通过管道与污水排出口联接,截流井的出口接粗格栅的进口、粗格栅的出口接提升泵的进口,提升泵的出口接细格栅的进口、细格栅的出口接沉砂池的进口,沉砂池的出口接一级配水井的进口,一级配水井的出口接初沉池的进口,初沉池的出口接生物处理设备的进口,生物处理设备的出口接二级配水井的进口,二级配水井的出口接二沉池的进口,二沉池的出水口与电解系统的进口联接,二沉池的污泥出口则一路经污泥回流泵与生物处理设备的进口联接,另一路与污泥处理系统的进口联接。
The biochemical system is used for biochemical treatment of sewage to obtain biochemical water, and the biochemical system is provided with a shut-off well, a coarse grid, a lifting pump, a fine grid, a grit chamber, a first-stage water distribution well, a primary sedimentation tank, a biological treatment equipment, Secondary water distribution well, secondary sedimentation tank and sludge return pump; the inlet of the intercepting well is connected to the sewage discharge outlet through the pipeline, the outlet of the intercepting well is connected to the inlet of the coarse grid, the outlet of the coarse grid is connected to the inlet of the lift pump, and the lift pump The outlet of the fine grille is connected to the inlet of the fine grate and the inlet of the grit chamber. The outlet of the grit chamber is connected to the inlet of the first water distribution well. The outlet of the first water distribution well is connected to the inlet of the primary sinking pool. The export is connected to the import of biological treatment equipment, the outlet of the biological treatment equipment is connected to the inlet of the secondary distribution well, the outlet of the secondary distribution well is connected to the inlet of the secondary sedimentation tank, and the outlet of the secondary sedimentation tank is connected with the inlet of the electrolysis system, The sludge outlet of the tank is connected to the inlet of the biological treatment equipment via the sludge return pump, and the other is connected to the inlet of the sludge treatment system.
所述生化系统还包括一个污泥处理系统,污泥处理系统用于将生化系统产生的污泥进行再生循环利用,污泥处理系统设有截止阀、一级污泥泵、电解机、缓冲罐、二级污泥泵、污水泵和污泥脱水装置;截止阀的进口通过管道接二沉池的污泥出口联接,截止阀的出口接一级污泥泵的进口,一级污泥泵的出口接电解机的进口,电解机的出口接缓冲罐的进口,
缓冲罐的出水口经污水泵接生物处理设备的进水口, 缓冲罐的
的污泥出口则经二级污泥泵接污泥脱水装置的进口,污泥脱水装置的滤液出口通过管道与二沉池的进水口联接,污泥脱水装置处理所得的泥饼则外运 。
The biochemical system further includes a sludge treatment system for recycling and recycling the sludge produced by the biochemical system, and the sludge treatment system is provided with a shut-off valve, a primary sludge pump, an electrolysis machine, and a buffer tank. , secondary sludge pump, sewage pump and sludge dewatering device; the inlet of the shut-off valve is connected to the sludge outlet of the secondary settling tank through the pipeline, and the outlet of the shut-off valve is connected to the inlet of the primary sludge pump, the primary sludge pump The outlet of the electrolysis machine is exported, and the outlet of the electrolysis machine is connected to the inlet of the buffer tank.
The water outlet of the buffer tank is connected to the water inlet of the biological treatment equipment through the sewage pump, and the buffer tank
The sludge outlet is connected to the inlet of the sludge dewatering device through the secondary sludge pump, and the filtrate outlet of the sludge dewatering device is connected to the water inlet of the secondary settling tank through the pipeline, and the mud cake obtained by the sludge dewatering device is shipped out.
所述生物处理设备为厌氧池、缺氧池、曝气池、氧化沟、序批式反应器(SBR)、生物滤池、生物转盘或生物接触氧化池的一种或两种以上的组合。
The biological treatment device is one or a combination of two or more of an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR), a biological filter, a biological turntable or a biological contact oxidation tank. .
所述电解机设有电源和电解槽,电解槽内的电极为石墨、钛、铁、铝、锌、铜、铅、镍、钼、铬、金属的合金和纳米催化惰性电极等中的一种;所述纳米催化惰性电极的表层涂覆有晶粒为10~35nm
的金属氧化物惰性催化涂层,所述纳米催化惰性电极的基板可为钛板或塑料板等,这种电极具有较高的电催化反应活性,可以大幅度降低电解的过电位,减少副反应的发生。
The electrolysis machine is provided with a power source and an electrolytic cell, and the electrode in the electrolytic cell is one of graphite, titanium, iron, aluminum, zinc, copper, lead, nickel, molybdenum, chromium, metal alloy and nano catalytic inert electrode. The surface layer of the nano catalytic inert electrode is coated with crystal grains of 10 to 35 nm
The metal oxide inert catalytic coating, the substrate of the nano catalytic inert electrode can be a titanium plate or a plastic plate, etc., the electrode has high electrocatalytic reactivity, can greatly reduce the overpotential of electrolysis, and reduce side reactions. happened.
所述污泥脱水装置为真空过滤脱水装置、压滤脱水装置、离心脱水装置和膜过滤装置中的一种,所述的压滤脱水装置为带式压滤机、板框压滤机二者的一种,所述膜过滤装置为微滤、超滤二者中的一种;所述微滤的膜组件为陶瓷膜、金属膜组件二者中的一种,所述超滤的膜组件为陶瓷膜、金属膜组件二者中的一种。
The sludge dewatering device is one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device and a membrane filtration device, and the filter press dewatering device is a belt filter press and a plate and frame filter press. In one aspect, the membrane filtration device is one of microfiltration and ultrafiltration; the microfiltration membrane module is one of a ceramic membrane and a metal membrane module, and the ultrafiltration membrane module It is one of a ceramic film and a metal film component.
所述电解系统用于对生化处理排放污水进行电解处理,电解系统设有截止阀、供水泵和电解机;截止阀的进口外接生化出水排出口,供水泵的进口接截止阀的出口,供水泵的出口接电解机的进口,电解机的出口与
MBR 系统的进口联接。
The electrolysis system is used for electrolyzing the biochemical treatment sewage, the electrolysis system is provided with a shut-off valve, a water supply pump and an electrolysis machine; the inlet of the shut-off valve is externally connected with a biochemical water discharge port, the inlet of the water supply pump is connected to the outlet of the shut-off valve, and the water supply pump The outlet of the electrolysis machine, the outlet of the electrolysis machine
The inlet connection of the MBR system.
所述 MBR 系统用于将电解系统所得净化污水进行进一步处理, MBR 系统设有截止阀、格栅、
MBR 反应池、 MBR 膜组件、鼓风机、曝气器、排污泵、出水泵、初级再生水贮罐和 MBR
清洗系统;所述截止阀的进口接电解系统的电解机的出口,截止阀出口接格栅的进口,格栅的出口接 MBR 反应池的进口, MBR 膜组件浸没在 MBR
反应池内,通过鼓风机及分布的曝气器对其进行曝气, MBR 反应池的滤液出口接出水泵的进口,出水泵的出口接初级再生水贮罐的进口, MBR
反应池的污泥出口接排污泵的进口,污泥经过排污泵抽吸至污泥处理系统进行处理;所述 MBR 膜组件可选自聚偏氟乙烯(PVDF)中空纤维膜、聚丙烯(
PP)中空纤维膜、聚砜(PS)中空纤维膜、聚醚砜(PES)、聚丙烯腈(PAN)和聚氯乙烯(PVC)中空纤维膜等中的一种,所述 MBR
膜组件的膜孔径可为0.10~0.2μm ,能高效进行固液分离,工作压力为 - 1~ - 50kPa,工作温度为5~45 ℃,适用 pH 为1~14
,出水固定悬浮物可降至1mg/L ,浊度可降至1NTU 以下。该系统可彻底去除污水中的细菌和大肠杆菌,出水的大肠菌群为 0,而菌落总数低于1CFU/mL
;所述
MBR清洗系统用于清洗MBR膜组件,MBR清洗系统设有清洗液罐、反冲洗泵和截止阀;清洗液罐的出口接反冲洗泵的进口,反冲洗泵的出口接截止阀的进口,截止阀的出口接
MBR系统。 The MBR system is used for further processing the purified sewage obtained by the electrolysis system, and the MBR system is provided with a shut-off valve and a grid.
MBR reaction cell, MBR membrane module, blower, aerator, sewage pump, water pump, primary reclaimed water storage tank and MBR
a cleaning system; the inlet of the shut-off valve is connected to the outlet of the electrolysis machine of the electrolysis system, the outlet of the shut-off valve is connected to the inlet of the grid, the outlet of the grid is connected to the inlet of the MBR reaction cell, and the MBR membrane module is submerged in the MBR
In the reaction tank, it is aerated by a blower and a distributed aerator. The filtrate outlet of the MBR reaction tank is connected to the inlet of the water pump, and the outlet of the outlet water pump is connected to the inlet of the primary reclaimed water storage tank, MBR.
The sludge outlet of the reaction tank is connected to the inlet of the sewage pump, and the sludge is pumped to the sludge treatment system for treatment by the sewage pump; the MBR membrane module may be selected from a polyvinylidene fluoride (PVDF) hollow fiber membrane and polypropylene (
PP) one of a hollow fiber membrane, a polysulfone (PS) hollow fiber membrane, a polyethersulfone (PES), a polyacrylonitrile (PAN), and a polyvinyl chloride (PVC) hollow fiber membrane, the MBR
The membrane module has a membrane pore size of 0.10-0.2μm, and can perform solid-liquid separation efficiently. The working pressure is -1~-50kPa, the working temperature is 5~45°C, and the pH is 1~14.
The effluent fixed suspension can be reduced to 1mg/L and the turbidity can be reduced to below 1NTU. The system can completely remove bacteria and E. coli from sewage, and the coliform bacteria in the effluent is 0, while the total number of colonies is less than 1 CFU/mL.
; said
The MBR cleaning system is used to clean the MBR membrane module. The MBR cleaning system is provided with a cleaning liquid tank, a backwashing pump and a shut-off valve; the outlet of the cleaning liquid tank is connected to the inlet of the backwashing pump, and the outlet of the backwashing pump is connected to the inlet of the shut-off valve. Valve outlet
MBR system.
所述深度处理系统用于将 MBR
系统处理所得的初级再生水进行电容吸附脱盐、分离,得透析水和浓缩水,透析水进一步通过消毒得到再生水,深度处理系统设有截止阀、提升泵、保安过滤器、供水泵、电容脱盐装置、消毒装置、再生水贮罐和浓缩水增压泵;所述截止阀的进口接
MBR
系统初级再生水贮罐的出口,截止阀出口接提升泵的进口,提升泵的出口接保安过滤器的进口,保安过滤器的出口接供水泵的进口,供水泵的进口接电容脱盐装置的进口,电容脱盐装置的透析水出口接消毒装置的进口,消毒装置的出口接再生水贮罐的进口;深度处理系统将
MBR
系统所得初级再生水经保安过滤器后用供水泵泵入电容脱盐装置,经电容脱盐装置处理得透析水和浓缩水,透析水经消毒装置消毒后进入贮罐得再生水;浓缩水则经过浓缩水增压泵回流进入电解净化系统循环使用;所述消毒装置为电解机、加氯系统、二氧化氯消毒器、臭氧消毒系统和紫外消毒器中的一种;所述电解机设有电源和电解槽;所述加氯系统设有加氯机、接触池、混合设备和氯瓶;所述臭氧消毒装置设有臭氧发生器、臭氧接触池和尾气臭氧分解器。 The depth processing system is used to MBR
The primary reclaimed water obtained by the system is subjected to capacitive adsorption desalination and separation to obtain dialysis water and concentrated water, and the dialysis water is further purified to obtain reclaimed water. The advanced treatment system is provided with a shut-off valve, a lift pump, a security filter, a water supply pump, a capacitor desalination device, Disinfection device, reclaimed water storage tank and concentrated water booster pump; inlet of the shut-off valve
MBR
The outlet of the system primary reclaimed water storage tank, the outlet of the shut-off valve is connected to the inlet of the lift pump, the outlet of the lift pump is connected to the inlet of the security filter, the outlet of the security filter is connected to the inlet of the water supply pump, and the inlet of the water supply pump is connected to the inlet of the capacitor desalination device. The dialysis water outlet of the capacitor desalination device is connected to the inlet of the sterilizing device, and the outlet of the sterilizing device is connected to the inlet of the reclaimed water storage tank; the advanced treatment system will
MBR
The primary reclaimed water obtained by the system is pumped into the capacitor desalination device by the water supply pump through the security filter, and the dialysis water and the concentrated water are treated by the capacitor desalination device. The dialysis water is disinfected by the disinfection device and then enters the storage tank to obtain the reclaimed water; the concentrated water is increased by the concentrated water. The pressure pump is returned to the electrolytic purification system for recycling; the disinfection device is one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer; the electrolysis machine is provided with a power source and an electrolysis tank The chlorination system is provided with a chlorinator, a contact tank, a mixing device and a chlorine bottle; the ozone sterilizing device is provided with an ozone generator, an ozone contact pool and a tail gas ozone decomposer.
本发明所述 一种污水处理及再生循环利用 方法 包括以下步骤: The sewage treatment and regeneration recycling method of the present invention comprises the following steps:
1)生化处理:污水经截流井进入生化系统,通过处理降低污水中的油脂、浮渣、SS、COD和BOD等污染物质,使其各项指标达到GB
18918-2002《城镇污水处理厂污染物排放标准》三级排放标准,再进入后续处理工序;
1) Biochemical treatment: The sewage enters the biochemical system through the intercepting well, and reduces the pollutants such as oil, scum, SS, COD and BOD in the sewage to make the various indicators reach GB.
The third-level emission standard of 18918-2002 "Emission Standards for Pollutants in Urban Sewage Treatment Plants" will be entered into the subsequent treatment process;
2)电解:将生化出水经水泵提取后,输入电解机中进行电解;在步骤
2)中,所述电解是将生化出水经过电解使之生成初生态的氯 [Cl] 、羟基 [OH] 和初生态的氧 [O]
,用以氧化分解污水中的动植物油、石油类、阴离子表面活性剂、有色物质等有机物和氨氮,并杀灭污水中微生物,同时,在电场作用下使污水中的悬浮物、胶体、带电微粒凝聚形成较大颗粒;所述电解的电解槽的工作电压可为2~250V,相邻两个电极间的电压可为
2 ~ 18V ,相邻两个电极间的最佳电压为 3~8V,电流密度可为3~400mA/cm2
,最佳为电流密度为50~210mA/cm2,生化出水经过电解后经阀门进入 MBR 系统。2) Electrolysis: After the biochemical effluent is extracted by a water pump, it is input into an electrolysis machine for electrolysis; in step 2), the electrolysis is to electrolyze the biochemical effluent to generate nascent chlorine [Cl], hydroxyl [OH] and The nascent oxygen [O] is used to oxidize and decompose organic matter such as animal and vegetable oil, petroleum, anionic surfactant, colored matter and ammonia nitrogen in the sewage, and kills microorganisms in the sewage, and at the same time, makes the sewage in the sewage The suspended matter, the colloid and the charged particles aggregate to form larger particles; the electrolytic electrolytic cell can have an operating voltage of 2 to 250 V, and the voltage between two adjacent electrodes can be 2 to 18 V, and the most between the two adjacent electrodes good voltage is 3 ~ 8V, the current density may be 3 ~ 400mA / cm 2, most preferably a current density of 50 ~ 210mA / cm 2, through biochemical water electrolysis system via the valve into the MBR.
3)MBR 系统过滤:将经过电解系统处理所得的净化污水经管道流入 MBR 系统,进行 MBR
系统处理分离得初级再生水;在步骤3)中,所述 MBR
系统是膜分离技术与生物技术有机结合的新型废水处理技术,它利用膜分离设备将生化反应池中的活性污泥和大分子有机物质进行截留,具有适应性强、生化效率高、抗负荷冲击能力强、占地面积小、处理效果好等优势。 3) MBR system filtration: the purified sewage treated by the electrolysis system flows into the MBR system through the pipeline for MBR
The system processes the separated primary reclaimed water; in step 3), the MBR
The system is a new type of wastewater treatment technology combining membrane separation technology and biotechnology. It uses membrane separation equipment to intercept activated sludge and macromolecular organic substances in biochemical reaction tanks. It has strong adaptability, high biochemical efficiency and anti-load shock. Strong ability, small footprint, good processing effect, etc.
4)电容脱盐和消毒:将经过 MBR
系统过滤所得的初级再生水经过供水泵泵入电容脱盐装置,脱盐分离得透析水和浓缩水,透析水经过消毒装置后进入贮罐得再生水;在步骤
4)中,所述电容脱盐的操作条件为直流电压110V/m~2 × 106V/m。4) Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is pumped into the capacitor desalination device through the water supply pump, and the dialysis water and the concentrated water are separated by desalting, and the dialysis water passes through the disinfection device and enters the storage tank to obtain the reclaimed water; in step 4) The operating condition of the capacitor desalination is a DC voltage of 110V/m~2 × 10 6 V/m.
5)污泥处理:生化系统产生的污泥进入污泥处理系统,经过电解和接触反应破坏污泥的结构,破解微生物的细胞壁,微生物胞内物质流出,进入水相,使难降解的固体性物质变为易降解的溶解性物质,然后再通过污水泵回流至生物处理设备中,为微生物所循环利用;剩余污泥则进入污泥脱水装置得滤液和泥饼,滤液经管道回流至二沉池,而泥饼则外运。
5) Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system, destroys the structure of the sludge through electrolysis and contact reaction, breaks the cell wall of the microorganism, and the microbial intracellular material flows out into the water phase, making the refractory solidity The substance becomes a soluble substance which is easily degraded, and then is returned to the biological treatment equipment through the sewage pump to be recycled for the microorganisms; the excess sludge enters the sludge dewatering device to obtain the filtrate and the mud cake, and the filtrate is returned to the second sediment through the pipeline. The pool, while the mud cake is shipped.
采用本发明对污水进行处理,产生的再生水水质良好,各项指标远优于 GB/T19923-2005
《城市污水再生利用
工业用水水质》标准,可作为各种行业的工业的生产工艺用水,即直接应用到工业的生产各工序中,达到清洁生产的目的。同时,本发明还可以对污泥进行处理,通过溶解、氧化污泥中有机成分,再回流至生物处理设备进行循环作用,不仅使得污泥中微生物细胞壁被破坏,细胞质溶出,提高了污泥的可生化性,便于后续微生物的降解,从而减少剩余污泥产量,而且溶出的细胞质也可以作为微生物的碳源,补充其营养物质,从而增加生物活性,提高生物处理污水的效率,达到污水、污泥双重处理的功效。 The sewage treated by the invention has good quality of reclaimed water, and the indexes are far superior to GB/T19923-2005.
Urban sewage recycling
The standard of industrial water quality can be used as the industrial production process water in various industries, that is, it can be directly applied to the industrial production process to achieve the purpose of clean production. At the same time, the invention can also treat the sludge, dissolve and oxidize the organic components in the sludge, and then reflux to the biological treatment equipment for recycling, so that the microbial cell wall in the sludge is destroyed, the cytoplasm is dissolved, and the sludge is improved. Biodegradable, which facilitates the degradation of subsequent microorganisms, thereby reducing the excess sludge production, and the dissolved cytoplasm can also be used as a carbon source of microorganisms to supplement its nutrients, thereby increasing biological activity, improving the efficiency of biological treatment of sewage, and achieving sewage and sewage. The effect of double treatment of mud.
采用该技术路线解决了现有污水处理及再生循环利用技术难题,具有如下优势: The technical route is used to solve the technical problems of the existing sewage treatment and recycling and recycling, and has the following advantages:
1、本发明采用电解处理污水的方法,具有如下突出效果:( 1
)在电流作用下电解使使残留于污水中的大分子开环或断链,增强污水的可生化性;( 2 )电解产生的初生态的氯 [Cl] 、羟基 [OH] 和初生态的氧 [O]
并氧化分解有机物,快速降低 COD;( 3 )氧化分解污水中的氨氮,使残留氨氮进一步氧化,氨氮的脱除率可达80~90%,同时消除水中臭味。( 4
)大幅度降低污水的色度,经过了生化、物化等多种方法处理后二沉池出水的色度在80~300 之间,一般的处理方法很难进一步脱除色度,经过电解可以将污水的色度从
80 ~ 300 之间降低到 16~32。( 5 )使污水中的悬浮物、胶体、带电微粒在电场作用下凝聚形成较大颗粒后,经过后续的 MBR
系统过滤去除得净化污水。( 6 )污水中的重金属离子向电解机电解槽的阴极移动,在阴极形成沉淀,从而降低污水中的重金属离子含量。 1. The method for electrolytically treating sewage according to the present invention has the following outstanding effects: (1)
Electrolysis under the action of electricity to open or break the macromolecules remaining in the sewage to enhance the biodegradability of the sewage; (2) the nascent chlorine [Cl], hydroxyl [OH] and nascent Oxygen [O]
Oxidative decomposition of organic matter, rapid reduction of COD; (3) oxidative decomposition of ammonia nitrogen in the sewage, further oxidation of residual ammonia nitrogen, ammonia nitrogen removal rate of up to 80 ~ 90%, while eliminating odor in water. ( 4
) greatly reduce the color of the sewage, after the biochemical, physical and other methods of treatment, the effluent of the secondary settling tank is between 80 and 300, the general treatment method is difficult to further remove the color, after electrolysis The color of the sewage from
Reduced from 80 to 300 to 16 to 32. (5) After the suspended solids, colloids and charged particles in the sewage are condensed under the electric field to form larger particles, the subsequent MBR is passed.
The system filters to remove the purified sewage. (6) The heavy metal ions in the sewage move to the cathode of the electrolysis cell of the electrolysis machine to form a precipitate at the cathode, thereby reducing the heavy metal ion content in the sewage.
2、降低污水 COD
总排放量,大幅提高污水可生化性:传统的生化末端加膜过滤技术,虽然可以实现部分中水回用,但不能降低污水 COD 的总排放量, 本发明电解产生的初生态的氯
[Cl] 、羟基 [OH] 和初生态的氧 [O] 使残留于污水中的大分子开环或断链并迅速氧化分解有机物 ,不但大幅度降低污水 COD 的总排放量,而且
提高污水的可生化性 ; 2, reduce sewage COD
Total emissions, greatly improve the biodegradability of sewage: the traditional biochemical end-addition membrane filtration technology, although it can realize partial water reuse, but can not reduce the total discharge of sewage COD, the nascent chlorine produced by the electrolysis of the present invention
[Cl], hydroxyl [OH] and nascent oxygen [O] open or smash macromolecules remaining in sewage and rapidly oxidize and decompose organic matter, not only greatly reducing the total COD emissions of wastewater, but also
Improve the biodegradability of sewage;
3、回用水率高、成本低:污水的回用率高达70%~90%,排放污水少,能耗低,高纯再生水生产成本低于1元/吨,远低于现行自来水价;
3. High water reuse rate and low cost: the reuse rate of sewage is as high as 70% to 90%, the discharge of sewage is low, and the energy consumption is low. The production cost of high-purity reclaimed water is less than 1 yuan/ton, which is much lower than the current tap water price;
4、回用水质高:采用该技术路线产生的再生水无色、无味,水质主要指标如表 1
,可以满足各种行业工业用水的水质要求; 4. High water quality for reuse: The recycled water produced by this technical route is colorless and odorless. The main indicators of water quality are shown in Table 1.
, can meet the water quality requirements of industrial water in various industries;
表 1 再生水水质指标
Table 1 Reclaimed water quality indicators
项目 | 浓度 | 项目 | 浓度 |
pH 值 | 6.5~8.5 | 电导率( μS/cm ) | ≤ 300 |
浊度( NTU ) | ≤ 1 | 氯化物( mg/L ) | ≤ 50 |
色度(倍) | ≤ 3 | 总铁( mg/L ) | ≤ 0.05 |
CODCr ( mg/L ) | ≤ 10 | 锰( mg/L ) | ≤ 0.1 |
SS ( mg/L ) | ≤ 1 | 游离氯( mg/L ) | ≤ 0.1 |
总碱度( mg/L ) | ≤ 50 ( 以碳酸钙硬度计 ) | 总硬度( mg/L ) | ≤ 10 ( 以碳酸钙硬度计 ) |
project | concentration | project | concentration |
pH value | 6.5~8.5 | Conductivity ( μS/cm ) | ≤ 300 |
Turbidity (NTU) | ≤ 1 | Chloride (mg/L) | ≤ 50 |
Chromaticity (times) | ≤ 3 | Total iron (mg/L) | ≤ 0.05 |
COD Cr ( mg/L ) | ≤ 10 | Manganese (mg/L) | ≤ 0.1 |
SS ( mg/L ) | ≤ 1 | Free chlorine (mg/L) | ≤ 0.1 |
Total alkalinity (mg/L) | ≤ 50 (based on calcium carbonate hardness) | Total hardness (mg/L) | ≤ 10 (based on calcium carbonate hardness) |
5、本发明采用电解处理污泥具有如下突出效果:(1)破坏污泥结构,在电场的作用下可以使污泥絮体结构发生变化,加快污泥水解;(2)抑制和杀灭污泥中微生物和病毒,电解过程中会产生大量具有强氧化性的自由基,不仅能穿透渗入到微生物的细胞中,阻断微生物的
DNA
复制,还能氧化分解微生物的细胞壁,破坏微生物的细胞结构,使细胞质进入到污泥中,使得污泥水解,抑制和杀灭微生物;另一方面,污泥中大量的微生物带负电荷,在电场的作用下,这些带负电荷的微生物失去电子而失去生物活性从而死亡后沉降;(3
)除臭,电解产生的多种游离基(氯 [Cl] 、羟基 [OH] 和氧 [O]
)氧化分解污泥中的发臭基团,去除恶臭,大幅度改善污泥减量处理工艺的整体工作环境;(4)分解污泥中大量有机物,在电流作用下电解使污泥中的大分子开环或断链,使难生物降解的大分子物质分解为小分子物质,将污泥
B/C 从 0.1~0.2 提高到0.3~0.6,增强污泥的可生化性,使其更容易为微生物所利用。
5. The electrolytic sludge treated by the invention has the following outstanding effects: (1) destroying the sludge structure, under the action of the electric field, the sludge floc structure can be changed to accelerate the hydrolysis of the sludge; (2) inhibiting and killing the sewage Microorganisms and viruses in the mud, a large number of strong oxidizing free radicals are generated during the electrolysis process, which not only penetrates into the cells of the microorganisms, but also blocks the microorganisms.
DNA
It can also oxidize and decompose the cell wall of the microorganism, destroy the cell structure of the microorganism, and let the cytoplasm enter the sludge, so that the sludge is hydrolyzed, inhibiting and killing the microorganism; on the other hand, a large number of microorganisms in the sludge are negatively charged. Under the action of an electric field, these negatively charged microorganisms lose electrons and lose their biological activity and then settle after death; (3
Deodorization, various free radicals produced by electrolysis (chlorine [Cl], hydroxyl [OH] and oxygen [O]
Oxidative decomposition of the odorous group in the sludge to remove malodor and greatly improve the overall working environment of the sludge reduction treatment process; (4) Decomposition of a large amount of organic matter in the sludge, electrolysis to make the sludge large under the action of current Molecular ring opening or chain scission, which decomposes biodegradable macromolecular substances into small molecular substances, and sludge
The B/C is increased from 0.1 to 0.2 to 0.3 to 0.6, which enhances the biodegradability of the sludge and makes it easier for microorganisms to utilize.
6、溶解、氧化污泥中有机成分,使难降解的固体性物质变为易降解的溶解性物质,再返回至生物处理设备进行循环作用,不仅可以为微生物补充碳源,作为其营养物质被微生物代谢再利用,提高生物处理污水的效率;而且可以通过微生物的分解反应,降解由破解细菌产生的溶解性物质,从而达到提高污水处理效果,减少剩余污泥产量的双重目的,实现污泥的再生循环利用。
6. Dissolving and oxidizing the organic components in the sludge, causing the hardly degradable solid matter to become a degradable dissolved substance, and then returning to the biological treatment equipment for recycling, not only can the microbe supplement the carbon source, as its nutrient is Reuse of microbial metabolism to improve the efficiency of biological treatment of sewage; and through the decomposition reaction of microorganisms, degrading the dissolved substances generated by cracking bacteria, thereby achieving the dual purpose of improving sewage treatment effect and reducing excess sludge production, and realizing sludge Recycling recycling.
7、通过污泥的再生利用,降低污泥的总量,一方面可以消除污泥可能对环境造成的危害,另一方面节约运输成本,减少占地,少付填埋费。
7. By recycling the sludge and reducing the total amount of sludge, on the one hand, it can eliminate the harm that the sludge may cause to the environment, on the other hand, it saves transportation costs, reduces land occupation, and pays less landfill fees.
图 1 为本发明所述 污水处理及再生循环利用装置 实施例的结构组成示意图。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structural composition of an embodiment of a sewage treatment and regeneration recycling apparatus according to the present invention.
本发明是在对现有污水处理厂生化出水的成份、性质和现有处理方案进行深入系统的对比研究之后完成的对污水的净化和再生循环利用工艺的设计,通过生化系统、电解、MBR系统、电容脱盐等工艺的组合运用,从而形成一种污水处理及再生循环利用装置及其方法。The invention designs the sewage purification and regeneration recycling process after the in-depth systematic comparative study on the composition, properties and existing treatment schemes of the biochemical effluent of the existing sewage treatment plant, through the biochemical system, electrolysis, MBR system The combination of processes such as capacitor desalination forms a sewage treatment and regeneration recycling device and method thereof.
下面实施例将结合附图对本发明作进一步的说明。The invention will be further illustrated by the following examples in conjunction with the drawings.
参见图1,本发明所述一种污水处理及再生循环利用装置及其方法实施例设有:Referring to FIG. 1, an embodiment of a sewage treatment and regeneration recycling device and a method thereof according to the present invention are provided with:
生化系统:生化系统用于对污水进行生化处理得到生化出水,生化系统设有截流井1、粗格栅2、提升泵3、细格栅4、沉砂池5、一级配水井6、初沉池7、生物处理设备8、二级配水井9、二沉池10、污泥回流泵11和截止阀12;截流井1的进口通过管道与污水排出口联接,截流井1的出口接粗格栅2的进口、粗格栅2的出口接提升泵3的进口,提升泵3的出口接细格栅4的进口、细格栅4的出口接沉砂池5的进口,沉砂池5的出口接一级配水井6的进口,一级配水井6的出口接初沉池7的进口,初沉池7的出口接生物处理设备8的进口,生物处理设备8的出口接二级配水井9的进口,二级配水井9的出口接二沉池10的进口,二沉池10的出水口与电解系统的进口联接,二沉池10的污泥出口一路经污泥回流泵11、截止阀12与生物处理设备8的进口联接,另一路与污泥处理系统的进口联接。Biochemical system: Biochemical system is used for biochemical treatment of sewage to obtain biochemical water. Biochemical system is equipped with intercepting well 1, coarse grid 2, lifting pump 3, fine grid 4, grit chamber 5, first-level water distribution well 6, initial Shenchi 7, biological treatment equipment 8, secondary distribution well 9, secondary sedimentation tank 10, sludge return pump 11 and shut-off valve 12; the inlet of the intercepting well 1 is connected to the sewage discharge outlet through the pipeline, and the outlet of the intercepting well 1 is thickened The inlet of the grille 2, the outlet of the coarse grille 2 is connected to the inlet of the lift pump 3, the outlet of the lift pump 3 is connected to the inlet of the fine grille 4, the outlet of the fine grille 4 is connected to the inlet of the grit chamber 5, and the grit chamber 5 The outlet is connected to the inlet of the first water distribution well 6, the outlet of the first water distribution well 6 is connected to the inlet of the primary sedimentation tank 7, the outlet of the primary sedimentation tank 7 is connected to the inlet of the biological treatment equipment 8, and the outlet of the biological treatment equipment 8 is connected to the secondary The inlet of the well 9 , the outlet of the secondary distribution well 9 is connected to the inlet of the secondary settling tank 10 , the outlet of the secondary settling tank 10 is connected to the inlet of the electrolysis system, and the sludge outlet of the secondary settling tank 10 passes through the sludge return pump 11 . The shut-off valve 12 is coupled to the inlet of the biological treatment device 8 and the other is coupled to the inlet of the sludge treatment system.
污泥处理系统:污泥处理系统用于将生化系统产生的污泥进行再生循环利用,污泥处理系统设有截止阀21、一级污泥泵22、电解机23、缓冲罐24、截止阀25、二级污泥泵26、污水泵27、截止阀28和污泥脱水装置29;截止阀21的进口通过管道接二沉池的污泥出口联接,截止阀21的出口接一级污泥泵22的进口,一级污泥泵22的出口接电解机23的进口,电解机23的出口接缓冲罐24的进口,缓冲罐24的出水口依次经污水泵27、截止阀28接生物处理设备8的进水口,缓冲罐24的的污泥出口则依次经截止阀25、二级污泥泵26接污泥脱水装置29的进口,污泥脱水装置29的滤液出口通过管道与二沉池10的进水口联接,污泥脱水装置29处理所得的泥饼则外运。Sludge treatment system: The sludge treatment system is used to regenerate and recycle the sludge produced by the biochemical system. The sludge treatment system is provided with a shut-off valve 21, a primary sludge pump 22, an electrolysis machine 23, a buffer tank 24, and a shut-off valve. 25. The secondary sludge pump 26, the sewage pump 27, the shut-off valve 28 and the sludge dewatering device 29; the inlet of the shut-off valve 21 is connected to the sludge outlet of the secondary settling tank through the pipeline, and the outlet of the shut-off valve 21 is connected to the primary sludge. The inlet of the pump 22, the outlet of the primary sludge pump 22 is connected to the inlet of the electrolysis machine 23, the outlet of the electrolysis machine 23 is connected to the inlet of the buffer tank 24, and the outlet of the buffer tank 24 is sequentially biologically treated by the sewage pump 27 and the shut-off valve 28. The water inlet of the device 8 and the sludge outlet of the buffer tank 24 are sequentially connected to the inlet of the sludge dewatering device 29 via the shut-off valve 25 and the secondary sludge pump 26, and the filtrate outlet of the sludge dewatering device 29 passes through the pipeline and the secondary settling tank. The water inlet of the 10 is connected, and the mud cake obtained by the sludge dewatering device 29 is shipped out.
所述电解机23的电极为纳米催化惰性电极,其表层涂覆有晶粒为10~35nm的金属氧化物惰性催化涂层,所述纳米催化惰性电极的基板可为钛板或塑料板等,这种电极具有较高的电催化反应活性,可以大幅度降低电解的过电位,减少副反应的发生。The electrode of the electrolysis machine 23 is a nano catalytic inertial electrode, and the surface layer thereof is coated with a metal oxide inert catalytic coating having a crystal grain size of 10 to 35 nm, and the substrate of the nano catalytic inert electrode may be a titanium plate or a plastic plate. The electrode has high electrocatalytic reactivity, can greatly reduce the overpotential of electrolysis, and reduce the occurrence of side reactions.
电解系统:电解系统用于电解处理,电解系统设有截止阀31、供水泵32和电解机33。截止阀31的进口外接生化出水排出口,供水泵32的进口接截止阀31的出口,供水泵32的出口接电解机33的进口,电解机33的出口与MBR系统的进水口联接。Electrolysis system: The electrolysis system is used for electrolytic treatment, and the electrolysis system is provided with a shutoff valve 31, a water supply pump 32, and an electrolysis machine 33. The inlet of the shut-off valve 31 is externally connected to the biochemical water discharge port, the inlet of the water supply pump 32 is connected to the outlet of the shut-off valve 31, the outlet of the water supply pump 32 is connected to the inlet of the electrolysis machine 33, and the outlet of the electrolysis machine 33 is connected with the water inlet of the MBR system.
所述电解系统的电解机33的纳米催化惰性电极的表层涂覆有晶粒为10~35nm的金属氧化物惰性催化涂层,所述纳米催化惰性电极的基板为钛板或塑料板。The surface layer of the nanocatalytic inert electrode of the electrolysis machine 33 of the electrolysis system is coated with a metal oxide inert catalytic coating having a crystal grain size of 10 to 35 nm, and the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate.
MBR系统:MBR系统用于将电解系统所得净化污水进行进一步处理。MBR系统设截止阀41、格栅42、MBR膜组件43、鼓风机44、曝气器45、MBR反应池46、排污泵47、出水泵48和初级再生水贮罐49。截止阀41的进口接电解机33的出口,截止阀41的出口接格栅42的进口,格栅42的出口依次经过MBR反应池46、出水泵48进入初级再生水贮罐49,MBR反应池46的污泥出口接排污泵47的进口,污泥经过排污泵47抽吸至污泥处理系统进行处理。MBR system: The MBR system is used to further treat the purified sewage obtained from the electrolysis system. The MBR system is provided with a shutoff valve 41, a grille 42, an MBR membrane module 43, a blower 44, an aerator 45, an MBR reaction tank 46, a sewage pump 47, an outlet water pump 48, and a primary reclaimed water storage tank 49. The inlet of the shutoff valve 41 is connected to the outlet of the electrolysis machine 33, the outlet of the shutoff valve 41 is connected to the inlet of the grille 42, and the outlet of the grille 42 is sequentially passed through the MBR reaction tank 46 and the outlet pump 48 to enter the primary reclaimed water storage tank 49, and the MBR reaction tank 46 The sludge outlet is connected to the inlet of the sewage pump 47, and the sludge is pumped by the sewage pump 47 to the sludge treatment system for treatment.
MBR清洗系统:MBR清洗系统用于清洗MBR系统,设有清洗液罐51、反冲洗泵52和截止阀53。清洗液罐51的出口接反冲洗泵52的进口,反冲洗泵52的出口接截止阀53的进口,截止阀53的出口接MBR反应池43的出口。MBR cleaning system: The MBR cleaning system is used to clean the MBR system, and is provided with a cleaning liquid tank 51, a backwash pump 52, and a shutoff valve 53. The outlet of the cleaning liquid tank 51 is connected to the inlet of the backwashing pump 52, the outlet of the backwashing pump 52 is connected to the inlet of the shutoff valve 53, and the outlet of the shutoff valve 53 is connected to the outlet of the MBR reaction tank 43.
深度处理系统:深度处理系统用于将MBR系统处理所得的初级再生水进行电容吸附脱盐、分离,得透析水和浓缩水,透析水进一步通过消毒得到再生水,深度处理系统设有截止阀61、提升泵62、保安过滤器63、供水泵64、电容脱盐装置65、截止阀66、消毒装置67、截止阀68、再生水贮罐69和浓缩水增压泵70;所述截止阀61的进口接MBR系统初级再生水贮罐49的出口,截止阀61出口接提升泵62的进口,提升泵62的出口接保安过滤器63的进口,保安过滤器63的出口接供水泵64的进口,供水泵64的进口接电容脱盐装置65的进口,电容脱盐装置65的透析水出口经截止阀66接消毒装置67的进口,消毒装置67的出口经截止阀68接再生水贮罐69的进口。Advanced treatment system: The advanced treatment system is used for capacitive adsorption desalination and separation of the primary reclaimed water treated by the MBR system to obtain dialysis water and concentrated water. The dialysis water is further purified by disinfection, and the deep treatment system is provided with a shut-off valve 61 and a lift pump. 62. A security filter 63, a water supply pump 64, a capacitor desalination device 65, a shutoff valve 66, a disinfection device 67, a shutoff valve 68, a reclaimed water storage tank 69, and a concentrated water booster pump 70; the inlet of the shutoff valve 61 is connected to the MBR system The outlet of the primary reclaimed water storage tank 49, the outlet of the shut-off valve 61 is connected to the inlet of the lift pump 62, the outlet of the lift pump 62 is connected to the inlet of the security filter 63, the outlet of the security filter 63 is connected to the inlet of the water supply pump 64, and the inlet of the water supply pump 64. Connected to the inlet of the capacitor desalination device 65, the dialysis water outlet of the capacitor desalination device 65 is connected to the inlet of the sterilizing device 67 via the shutoff valve 66, and the outlet of the sterilizing device 67 is connected to the inlet of the reclaimed water storage tank 69 via the shutoff valve 68.
所述深度处理系统的电容脱盐装置65的操作条件为直流电压110V/m~2×106V/m。The operating conditions of the capacitive desalination device 65 of the deep processing system are DC voltages of 110 V/m to 2 x 106 V/m.
以下结合图1给出污水处理及再生循环利用方法的具体实施例。A specific embodiment of a sewage treatment and regeneration cycle utilization method will be given below with reference to FIG.
实施例 1 Example 1
1000吨 / 日污水处理及再生循环利用 工程。 1000 tons / day sewage treatment and recycling and recycling project.
所述污水的水质情况如表 2 所示。 The water quality of the sewage is shown in Table 2.
表 2 污水的水质情况
Table 2 Water quality of sewage
序号 | 项目 | 单位 | 测定值 | 序号 | 项目 | 单位 | 测定值 |
1 | CODCr | mg/L | 350 | 5 | 浊度 | NTU | 19 |
2 | BOD5 | mg/L | 180 | 6 | 色度 | 倍 | 50 |
3 | SS | mg/L | 270 | 7 | pH | - | 7.5 |
4 | TN | mg/L | 30 | 8 | 电导率 | µS/cm | 380 |
Serial number | project | unit | measured value | Serial number | project | unit | measured value |
1 | COD Cr | Mg/L | 350 | 5 | Turbidity | NTU | 19 |
2 | BOD 5 | Mg/L | 180 | 6 | Chroma | Times | 50 |
3 | SS | Mg/L | 270 | 7 | pH | - | 7.5 |
4 | TN | Mg/L | 30 | 8 | Conductivity | μS/cm | 380 |
步骤 1 、生化处理:污水经截流井 1 进入生化系统,依次经过 粗格栅 2 、提升泵 3 、细格栅
4 、沉砂池 5 、一级配水井 6 、初沉池 7 、生物处理设备 8 、二级配水井 9 和二沉池 10 的处理, 使其各项指标达到 GB 18918-2002
《城镇污水处理厂污染物排放标准》三级排放标准,再进入后续处理工序。 Step 1. Biochemical treatment: The sewage enters the biochemical system through the intercepting well 1 and passes through the coarse grid 2, the lift pump 3 and the fine grid.
4, grit chamber 5, first-stage water distribution well 6, primary sedimentation tank 7, biological treatment equipment 8, secondary distribution well 9 and secondary sedimentation tank 10, so that its indicators reach GB 18918-2002
The third-level emission standard of the “Emission Standards for Pollutants in Urban Sewage Treatment Plants” will enter the subsequent treatment process.
步骤 2 、电解:起动供水泵 32 ,污水经截止阀 31 进入电解机 33 进行电解。 Step 2: Electrolysis: start the water supply pump 32, and the sewage enters the electrolysis machine 33 through the shut-off valve 31 for electrolysis.
所述电解所用电解机 33 的电极的纳米催化惰性电极的表层涂覆有晶粒为 10nm
的金属氧化物惰性催化涂层,所述纳米催化惰性电极的基板为钛板或塑料板。 The surface of the nanocatalytic inert electrode of the electrode of the electrolysis machine 33 for electrolysis is coated with a crystal grain of 10 nm.
The metal oxide inert catalytic coating, the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate.
所述电解的工作电压为6V
,两极间的电压为3.5~8.0V,电流密度350mA/cm2 。The electrolysis has an operating voltage of 6 V, a voltage between the two electrodes of 3.5 to 8.0 V, and a current density of 350 mA/cm 2 .
步骤 3 、 MBR 系统过滤分离:电解后的净化污水再经过格栅 41
过滤除去污水中因电解产生的较大颗粒的固体杂质、胶体后进入 MBR 反应池 46 中,启动鼓风机 44 和曝气器 45 ,污水经过曝气氧化后,启动出水泵 48
,在负压作用下,水分子透过 MBR 膜组件 43 分离,得透析水,透析水收集到初级再生水贮罐 49 中。 Step 3, MBR system filtration separation: the purified sewage after electrolysis passes through the grid 41
The solid impurities and colloids of the larger particles generated by electrolysis in the sewage are removed by filtration, and then enter the MBR reaction tank 46 to start the blower 44 and the aerator 45. After the aeration is oxidized, the water pump is started.
Under negative pressure, water molecules are separated by the MBR membrane module 43 to obtain dialysis water, and the dialysis water is collected into the primary reclaimed water storage tank 49.
所述 MBR 系统的膜材料为孔径 0.2 微米的聚偏氟乙烯( PVDF )中空纤维膜。 MBR
系统分离的工作压力为 -25 ~ -26 kPa ,工作温度为 15 ~ 40 ℃, pH 值为 5 ~ 9 。 The membrane material of the MBR system is a polyvinylidene fluoride (PVDF) hollow fiber membrane having a pore size of 0.2 μm. MBR
The system has a working pressure of -25 to -26 kPa, an operating temperature of 15 to 40 °C, and a pH of 5 to 9.
步骤 4 、电容脱盐和消毒:将经过 MBR 系统过滤所得的初级再生水依次经过 截止阀 61 、提升泵
62 、保安过滤器 63 、供水泵 64 泵入电容脱盐装置 65 ,脱盐分离得透析水和浓缩水,透析水经过电解机 67 后进入再生水贮罐 69
得再生水。污水的回用率为 87% ,再生水的水质情况如表 3 所示。 Step 4: Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is passed through the shut-off valve 61 and the lift pump.
62, security filter 63, water supply pump 64 pumped into the capacitor desalination device 65, desalinated separation of dialysis water and concentrated water, dialysis water after electrolysis machine 67 into the reclaimed water storage tank 69
Reclaimed water. The reuse rate of sewage is 87%, and the water quality of reclaimed water is shown in Table 3.
所述电容脱盐装置 65 的 操作条件为直流电压 110V/m ~2 ×
106V/m 。The operating condition of the capacitor desalination device 65 is a DC voltage of 110 V/m to 2 × 10 6 V/m.
上述电解机 67
为消毒装置。当然,消毒装置可以是电解机、加氯系统、二氧化氯消毒器、臭氧消毒系统和紫外消毒器中的一种。 The above electrolysis machine 67
For disinfection devices. Of course, the disinfecting device can be one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer.
步骤 5 、污泥处理:生化系统产生的污泥进入污泥处理系统,经过 一级污泥泵 22 泵入电解机 23
电解。所述电解机 23 电极的纳米催化惰性电极的表层涂覆有晶粒为 32~35nm 的金属氧化物惰性催化涂层,所述纳米催化惰性电极的基板为钛板或塑料板。
工作电压为 12V ,两极间的电压为了 3.5 ~ 8.0V ,电流密度 200mA/cm2 。电解后的污泥进入缓冲罐 24
,使得电解产生的自由基进一步与污泥进行接触反应,破坏污泥的结构,破解微生物的细胞壁,使得污泥絮体结构发生变化,微生物胞内物质流出,进入水相,使难降解的固体性物质变为易降解的溶解性物质,然后再通过污水泵
27 回流至生物处理设备 8 中, 为微生物 循环利用,不仅可以为微生物补充碳源, 可被微生物代谢再利用,提高生物处理污水的效率;
而且可以通过微生物的分解反应,降解由破解细菌产生的溶解性物质,从而达到减少剩余污泥产量的目的。剩余污泥则通过二级污泥泵 26 进入离心脱水装置 29 得
滤液和泥饼,滤液经管道回流至二沉池 10 ,而泥饼则外运。Step 5: Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system and is pumped into the electrolysis machine 23 through the primary sludge pump 22 for electrolysis. The surface layer of the nano catalytic inert electrode of the electrode of the electrolysis machine 23 is coated with a metal oxide inert catalytic coating having a crystal grain size of 32 to 35 nm, and the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate. The operating voltage is 12V, the voltage between the two poles is 3.5 to 8.0V, and the current density is 200mA/cm 2 . The sludge after electrolysis enters the buffer tank 24, so that the radical generated by the electrolysis further contacts the sludge, destroys the structure of the sludge, breaks the cell wall of the microorganism, changes the structure of the floc, and the intracellular substance flows out. Entering the water phase, the hardly degradable solid material becomes a readily degradable dissolved substance, and then is returned to the biological treatment device 8 through the sewage pump 27, which is used for the microbial recycling, not only can supplement the carbon source for the microorganism, but can be supplemented by the microorganism Metabolic reuse can improve the efficiency of biological treatment of sewage; and it can decompose the dissolved substances produced by cracking bacteria through the decomposition reaction of microorganisms, thereby achieving the purpose of reducing the excess sludge production. The excess sludge passes through the secondary sludge pump 26 and enters the centrifugal dewatering unit 29 to obtain the filtrate and the mud cake. The filtrate is returned to the secondary settling tank 10 through the pipeline, and the mud cake is transported.
上述离心脱水装置 29
为污泥脱水装置。当然,污泥脱水装置可以是真空过滤脱水装置、压滤脱水装置、离心脱水装置和膜过滤装置中的一种,所述的压滤脱水装置为带式压滤机、板框压滤机二者中的一种,所述膜过滤装置为微滤、超滤二者中的一种,所述微滤的膜组件为陶瓷膜、金属膜组件二者中的一种,所述超滤的膜组件为陶瓷膜、金属膜组件二者中的一种。 The above centrifugal dewatering device 29
It is a sludge dewatering device. Of course, the sludge dewatering device may be one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device, and a membrane filtration device, and the filter press dewatering device is a belt filter press, a plate and frame filter press 2 In one of the above, the membrane filtration device is one of microfiltration and ultrafiltration, and the microfiltration membrane module is one of a ceramic membrane and a metal membrane module, the ultrafiltration The membrane module is one of a ceramic membrane and a metal membrane module.
表 3 再生水的水质情况
Table 3 Water quality of reclaimed water
序号 | 项目 | 单位 | 测定值 | 序号 | 项目 | 单位 | 测定值 |
1 | CODCr | mg/L | ≤ 5 | 5 | 浊度 | NTU | ≤ 1 |
2 | BOD5 | mg/L | ≤ 5 | 6 | 色度 | 倍 | ≤ 2 |
3 | SS | mg/L | ≤ 1 | 7 | pH | - | 7.2 |
4 | TN | mg/L | ≤ 4 | 8 | 电导率 | µS/cm | ≤ 200 |
Serial number | project | unit | measured value | Serial number | project | unit | measured value |
1 | COD Cr | Mg/L | ≤ 5 | 5 | Turbidity | NTU | ≤ 1 |
2 | BOD 5 | Mg/L | ≤ 5 | 6 | Chroma | Times | ≤ 2 |
3 | SS | Mg/L | ≤ 1 | 7 | pH | - | 7.2 |
4 | TN | Mg/L | ≤ 4 | 8 | Conductivity | μS/cm | ≤ 200 |
实施例 2 Example 2
5000 吨 / 日污水的深度净化再生及循环利用 工程。 Deep purification, recycling and recycling of 5000 tons / day of sewage.
所述污水的水质情况如表 4 所示。 The water quality of the sewage is shown in Table 4.
表 4 污水的水质情况
Table 4 Water quality of sewage
序号 | 项目 | 单位 | 测定值 | 序号 | 项目 | 单位 | 测定值 |
1 | CODCr | mg/L | 289 | 5 | 浊度 | NTU | 16 |
2 | BOD5 | mg/L | 114 | 6 | 色度 | 倍 | 80 |
3 | SS | mg/L | 250 | 7 | pH | - | 7.4 |
4 | TN | mg/L | 42 | 8 | 电导率 | µS/cm | 510 |
Serial number | project | unit | measured value | Serial number | project | unit | measured value |
1 | COD Cr | Mg/L | 289 | 5 | Turbidity | NTU | 16 |
2 | BOD 5 | Mg/L | 114 | 6 | Chroma | Times | 80 |
3 | SS | Mg/L | 250 | 7 | pH | - | 7.4 |
4 | TN | Mg/ | 42 | 8 | Conductivity | μS/cm | 510 |
步骤 1 、生化处理:污水经截流井 1 进入生化系统,依次经过 粗格栅 2 、提升泵 3 、细格栅
4 、沉砂池 5 、一级配水井 6 、初沉池 7 、生物处理设备 8 、二级配水井 9 和二沉池 10 的处理, 使其各项指标达到 GB 18918-2002
《城镇污水处理厂污染物排放标准》三级排放标准,再进入后续处理工序。 Step 1. Biochemical treatment: The sewage enters the biochemical system through the intercepting well 1 and passes through the coarse grid 2, the lift pump 3 and the fine grid.
4, grit chamber 5, first-stage water distribution well 6, primary sedimentation tank 7, biological treatment equipment 8, secondary distribution well 9 and secondary sedimentation tank 10, so that its indicators reach GB 18918-2002
The third-level emission standard of the “Emission Standards for Pollutants in Urban Sewage Treatment Plants” will enter the subsequent treatment process.
上述生物处理设备 8
为氧化沟。当然,生物处理设备可以是厌氧池、缺氧池、曝气池、氧化沟、序批式反应器( SBR
)、生物滤池、生物转盘和生物接触氧化池的一种或两种以上的组合。 The above biological treatment equipment 8
For the oxidation ditch. Of course, the biological treatment equipment can be an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR)
One or a combination of two or more of a biofilter, a biological turntable, and a biological contact oxidation cell.
步骤 2 、电解:起动供水泵 32 ,污水经截止阀 31 进入电解机 33 进行电解。所述电解机
33 的电极为表层涂覆有晶粒为 15nm 的金属氧化物惰性催化涂层的纳米催化惰性电极,所述纳米催化惰性电极的基板为钛板。所述电解的工作电压为 100V
,两极间的电压为 2 ~ 18V ,电流密度 3mA/cm2 。Step 2: Electrolysis: The water supply pump 32 is started, and the sewage enters the electrolysis machine 33 through the shut-off valve 31 for electrolysis. The electrode of the electrolysis machine 33 is a nanocatalytic inert electrode whose surface layer is coated with a metal oxide inert catalytic coating having a crystal grain size of 15 nm, and the substrate of the nano catalytic inert electrode is a titanium plate. The electrolysis has an operating voltage of 100 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 3 mA/cm 2 .
上述纳米催化惰性材料为电解机的电极材料。当然,
电极材料可以是石墨、钛、铁、铝、锌、铜、铅、镍、钼、铬、合金和纳米催化惰性材料中的一种。 The above nanocatalytic inert material is an electrode material of an electrolysis machine. of course,
The electrode material may be one of graphite, titanium, iron, aluminum, zinc, copper, lead, nickel, molybdenum, chromium, alloys, and nanocatalytic inert materials.
步骤 3 、 MBR 系统过滤分离:电解后的净化污水再经过格栅 41
过滤除去污水中因电解产生的较大颗粒的固体杂质、胶体后进入 MBR 反应池 46 中,启动鼓风机 44 和曝气器 45 ,污水经过曝气氧化后,启动出水泵 48
,在负压作用下,水分子透过 MBR 膜组件 43 分离,得透析水,透析水收集到初级再生水贮罐 49 中。 Step 3, MBR system filtration separation: the purified sewage after electrolysis passes through the grid 41
The solid impurities and colloids of the larger particles generated by electrolysis in the sewage are removed by filtration, and then enter the MBR reaction tank 46 to start the blower 44 and the aerator 45. After the aeration is oxidized, the water pump is started.
Under negative pressure, water molecules are separated by the MBR membrane module 43 to obtain dialysis water, and the dialysis water is collected into the primary reclaimed water storage tank 49.
所述 MBR 系统的膜材料为孔径 0.1 微米的聚丙烯( PP )中空纤维膜。 MBR
系统分离的工作压力为 -20 ~ -23 kPa ,工作温度为 5 ~ 45 ℃, pH 为 5 ~ 9 。 The membrane material of the MBR system is a polypropylene (PP) hollow fiber membrane having a pore size of 0.1 μm. MBR
The system has a working pressure of -20 to -23 kPa, an operating temperature of 5 to 45 °C, and a pH of 5 to 9.
步骤 4 、电容脱盐和消毒:将经过 MBR 系统过滤所得的初级再生水依次经过 截止阀 61 、提升泵
62 、保安过滤器 63 、供水泵 64 泵入电容脱盐装置 65 ,脱盐分离得透析水和浓缩水,透析水经过臭氧消毒系统 67 后进入再生水贮罐 69
得再生水。污水的回用率为 80% ,再生水的水质情况如表 5 所示。 Step 4: Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is passed through the shut-off valve 61 and the lift pump.
62, security filter 63, water supply pump 64 pumped into the capacitor desalination device 65, desalinated separation of dialysis water and concentrated water, dialysis water through the ozone disinfection system 67 and then into the reclaimed water storage tank 69
Reclaimed water. The reuse rate of sewage is 80%, and the water quality of reclaimed water is shown in Table 5.
所述电容脱盐装置 65 的 操作条件为直流电压 110V/m ~2 ×
106V/m 。The operating condition of the capacitor desalination device 65 is a DC voltage of 110 V/m to 2 × 10 6 V/m.
上述臭氧消毒系统 67
为消毒装置。当然,消毒装置可以是电解机、加氯系统、二氧化氯消毒器、臭氧消毒系统和紫外消毒器中的一种。 The above ozone disinfection system 67
For disinfection devices. Of course, the disinfecting device can be one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer.
步骤 5 、污泥处理:生化系统产生的污泥进入污泥处理系统,经过 一级污泥泵 22 泵入电解机 23
电解。所述电解机 23 的工作电压为 100V ,两极间的电压为了 2 ~ 18V ,电流密度 260mA/cm2
。电解后的污泥进入缓冲罐 24
,使得电解产生的自由基进一步与污泥进行接触反应,破坏污泥的结构,破解微生物的细胞壁,使得污泥絮体结构发生变化,微生物胞内物质流出,进入水相,使难降解的固体性物质变为易降解的溶解性物质,然后再通过污水泵
27 回流至生物处理设备 8 中, 为微生物 循环利用,不仅可以为微生物补充碳源, 可被微生物代谢再利用,提高生物处理污水的效率;
而且可以通过微生物的分解反应,降解由破解细菌产生的溶解性物质,从而达到减少剩余污泥产量的目的。剩余污泥则通过二级污泥泵 26 进入带式压滤机 29 得
滤液和泥饼,滤液经管道回流至二沉池 10 ,而泥饼则外运。Step 5: Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system and is pumped into the electrolysis machine 23 through the primary sludge pump 22 for electrolysis. The electrolysis machine 23 has an operating voltage of 100 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 260 mA/cm 2 . The sludge after electrolysis enters the buffer tank 24, so that the radical generated by the electrolysis further contacts the sludge, destroys the structure of the sludge, breaks the cell wall of the microorganism, changes the structure of the floc, and the intracellular substance flows out. Entering the water phase, the hardly degradable solid material becomes a readily degradable dissolved substance, and then is returned to the biological treatment device 8 through the sewage pump 27, which is used for the microbial recycling, not only can supplement the carbon source for the microorganism, but can be supplemented by the microorganism Metabolic reuse can improve the efficiency of biological treatment of sewage; and it can decompose the dissolved substances produced by cracking bacteria through the decomposition reaction of microorganisms, thereby achieving the purpose of reducing the excess sludge production. The excess sludge passes through the secondary sludge pump 26 and enters the belt filter press 29 to obtain the filtrate and the mud cake. The filtrate is returned to the secondary settling tank 10 through the pipeline, and the mud cake is transported.
上述带式压滤机 29
为污泥脱水装置。当然,污泥脱水装置可以是真空过滤脱水装置、压滤脱水装置、离心脱水装置和膜过滤装置中的一种,所述的压滤脱水装置为带式压滤机、板框压滤机二者中的一种,所述膜过滤装置为微滤、超滤二者中的一种,所述微滤的膜组件为陶瓷膜、金属膜组件二者中的一种,所述超滤的膜组件为陶瓷膜、金属膜组件二者中的一种。 The above belt filter press 29
It is a sludge dewatering device. Of course, the sludge dewatering device may be one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device, and a membrane filtration device, and the filter press dewatering device is a belt filter press, a plate and frame filter press 2 In one of the above, the membrane filtration device is one of microfiltration and ultrafiltration, and the microfiltration membrane module is one of a ceramic membrane and a metal membrane module, the ultrafiltration The membrane module is one of a ceramic membrane and a metal membrane module.
表 5 再生水的水质情况
Table 5 Water quality of reclaimed water
序号 | 项目 | 单位 | 测定值 | 序号 | 项目 | 单位 | 测定值 |
1 | CODCr | mg/L | ≤ 5 | 5 | 浊度 | NTU | ≤ 1 |
2 | BOD5 | mg/L | ≤ 5 | 6 | 色度 | 倍 | ≤ 2 |
3 | SS | mg/L | ≤ 1 | 7 | pH | - | 7.0 |
4 | TN | mg/L | ≤ 5 | 8 | 电导率 | µS/cm | ≤ 180 |
Serial number | project | unit | measured value | Serial number | project | unit | measured value |
1 | COD Cr | Mg/L | ≤ 5 | 5 | Turbidity | NTU | ≤ 1 |
2 | BOD 5 | Mg/L | ≤ 5 | 6 | Chroma | Times | ≤ 2 |
3 | SS | Mg/L | ≤ 1 | 7 | pH | - | 7.0 |
4 | TN | Mg/L | ≤ 5 | 8 | Conductivity | μS/cm | ≤ 180 |
实施例 3 Example 3
10000 吨 / 日污水的深度净化再生及循环利用 工程。 Deep purification, recycling and recycling of 10,000 tons / day of sewage.
所述污水的水质情况如表 6 所示。 The water quality of the sewage is shown in Table 6.
表 6 污水的水质情况
Table 6 Water quality of sewage
序号 | 项目 | 单位 | 测定值 | 序号 | 项目 | 单位 | 测定值 |
1 | CODCr | mg/L | 259 | 5 | 浊度 | NTU | 15 |
2 | BOD5 | mg/L | 99 | 6 | 色度 | 倍 | 80 |
3 | SS | mg/L | 300 | 7 | pH | - | 7.7 |
4 | NH3-N | mg/L | 45 | 8 | 电导率 | µS/cm | 440 |
Serial number | project | unit | measured value | Serial number | project | unit | measured value |
1 | COD Cr | Mg/L | 259 | 5 | Turbidity | NTU | 15 |
2 | BOD 5 | Mg/L | 99 | 6 | Chroma | Times | 80 |
3 | SS | Mg/L | 300 | 7 | pH | - | 7.7 |
4 | NH 3 -N | Mg/ | 45 | 8 | Conductivity | μS/cm | 440 |
步骤 1 、生化处理:污水经截流井 1 进入生化系统,依次经过 粗格栅 2 、提升泵 3 、细格栅
4 、沉砂池 5 、一级配水井 6 、初沉池 7 、生物处理设备 8 、二级配水井 9 和二沉池 10 的处理, 使其各项指标达到 GB 18918-2002
《城镇污水处理厂污染物排放标准》三级排放标准,再进入后续处理工序。 Step 1. Biochemical treatment: The sewage enters the biochemical system through the intercepting well 1 and passes through the coarse grid 2, the lift pump 3 and the fine grid.
4, grit chamber 5, first-stage water distribution well 6, primary sedimentation tank 7, biological treatment equipment 8, secondary distribution well 9 and secondary sedimentation tank 10, so that its indicators reach GB 18918-2002
The third-level emission standard of the “Emission Standards for Pollutants in Urban Sewage Treatment Plants” will enter the subsequent treatment process.
上述生物处理设备 8
为厌氧池和生物接触氧化池的组合。当然,生物处理设备可以是厌氧池、缺氧池、曝气池、氧化沟、序批式反应器( SBR
)、生物滤池、生物转盘和生物接触氧化池的一种或两种以上的组合。 The above biological treatment equipment 8
It is a combination of an anaerobic tank and a biological contact oxidation tank. Of course, the biological treatment equipment can be an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR)
One or a combination of two or more of a biofilter, a biological turntable, and a biological contact oxidation cell.
步骤 2 、电解:起动供水泵 32 ,污水经截止阀 31 进入电解机 33
进行电解。所述电解的工作电压为 220V ,两极间的电压为 2 ~ 18V ,电流密度 15mA/cm2 。Step 2: Electrolysis: The water supply pump 32 is started, and the sewage enters the electrolysis machine 33 through the shut-off valve 31 for electrolysis. The electrolysis has an operating voltage of 220 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 15 mA/cm 2 .
步骤 3 、 MBR 系统过滤分离:电解后的净化污水再经过格栅 41
过滤除去污水中因电解产生的较大颗粒的固体杂质、胶体后进入 MBR 反应池 46 中,启动鼓风机 44 和曝气器 45 ,污水经过曝气氧化后,启动出水泵 48
,在负压作用下,水分子透过 MBR 膜组件 43 分离,得透析水,透析水收集到初级再生水贮罐 49 中。 Step 3, MBR system filtration separation: the purified sewage after electrolysis passes through the grid 41
The solid impurities and colloids of the larger particles generated by electrolysis in the sewage are removed by filtration, and then enter the MBR reaction tank 46 to start the blower 44 and the aerator 45. After the aeration is oxidized, the water pump is started.
Under negative pressure, water molecules are separated by the MBR membrane module 43 to obtain dialysis water, and the dialysis water is collected into the primary reclaimed water storage tank 49.
所述 MBR 系统的膜材料为孔径 0.2 微米的聚偏氟乙烯( PVDF )中空纤维膜。 MBR
系统分离的工作压力为 -1 ~ -50 kPa ,工作温度为 5 ~ 45 ℃, pH 值为 1 ~ 14 。 The membrane material of the MBR system is a polyvinylidene fluoride (PVDF) hollow fiber membrane having a pore size of 0.2 μm. MBR
The system has a working pressure of -1 to -50 kPa, an operating temperature of 5 to 45 °C, and a pH of 1 to 14.
步骤 4 、电容脱盐和消毒:将经过 MBR 系统过滤所得的初级再生水依次经过 截止阀 61 、提升泵
62 、保安过滤器 63 、供水泵 64 泵入电容脱盐装置 65 ,脱盐分离得透析水和浓缩水,透析水经过二氧化氯消毒器 67 后进入再生水贮罐 69
得再生水。污水的回用率为 74% ,再生水的水质情况如表 7 所示。 Step 4: Capacitor desalination and disinfection: the primary reclaimed water filtered by the MBR system is passed through the shut-off valve 61 and the lift pump.
62, security filter 63, water supply pump 64 pumped into the capacitor desalination device 65, desalinated separation of dialysis water and concentrated water, dialysis water through the chlorine dioxide sterilizer 67 and then into the reclaimed water storage tank 69
Reclaimed water. The reuse rate of sewage is 74%, and the water quality of reclaimed water is shown in Table 7.
所述电容脱盐装置 65 的 操作条件为直流电压 110V/m ~2 ×
106V/m 。The operating condition of the capacitor desalination device 65 is a DC voltage of 110 V/m to 2 × 10 6 V/m.
上述二氧化氯消毒器 67
为消毒装置。当然,消毒装置可以是电解机、加氯系统、二氧化氯消毒器、臭氧消毒系统和紫外消毒器中的一种。 The above chlorine dioxide sterilizer 67
For disinfection devices. Of course, the disinfecting device can be one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system, and an ultraviolet sterilizer.
步骤 5 、污泥处理:生化系统产生的污泥进入污泥处理系统,经过 一级污泥泵 22 泵入电解机 23
电解。所述电解机 23 的工作电压为 220V ,两极间的电压为了 2 ~ 18V ,电流密度 15mA/cm2
。电解后的污泥进入缓冲罐 24
,使得电解产生的自由基进一步与污泥进行接触反应,破坏污泥的结构,破解微生物的细胞壁,使得污泥絮体结构发生变化,微生物胞内物质流出,进入水相,使难降解的固体性物质变为易降解的溶解性物质,然后再通过污水泵
27 回流至生物处理设备 8 中, 为微生物 循环利用,不仅可以为微生物补充碳源, 可被微生物代谢再利用,提高生物处理污水的效率;
而且可以通过微生物的分解反应,降解由破解细菌产生的溶解性物质,从而达到减少剩余污泥产量的目的。剩余污泥则通过二级污泥泵 26 进入超滤膜过滤装置 29 得
滤液和泥饼,滤液经管道回流至二沉池 10 ,而泥饼则外运。所述超滤的膜组件为金属膜组件。Step 5: Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system and is pumped into the electrolysis machine 23 through the primary sludge pump 22 for electrolysis. The electrolysis machine 23 has an operating voltage of 220 V, a voltage between the two electrodes of 2 to 18 V, and a current density of 15 mA/cm 2 . The sludge after electrolysis enters the buffer tank 24, so that the radical generated by the electrolysis further contacts the sludge, destroys the structure of the sludge, breaks the cell wall of the microorganism, changes the structure of the floc, and the intracellular substance flows out. Entering the water phase, the hardly degradable solid material becomes a readily degradable dissolved substance, and then is returned to the biological treatment device 8 through the sewage pump 27, which is used for the microbial recycling, not only can supplement the carbon source for the microorganism, but can be supplemented by the microorganism Metabolic reuse can improve the efficiency of biological treatment of sewage; and it can decompose the dissolved substances produced by cracking bacteria through the decomposition reaction of microorganisms, thereby achieving the purpose of reducing the excess sludge production. The excess sludge enters the ultrafiltration membrane filtration unit 29 through the secondary sludge pump 26 to obtain the filtrate and the mud cake, and the filtrate is returned to the secondary sedimentation tank 10 through the pipeline, and the mud cake is shipped. The ultrafiltration membrane module is a metal membrane module.
上述超滤膜过滤装置 29
为污泥脱水装置。当然,污泥脱水装置可以是真空过滤脱水装置、压滤脱水装置、离心脱水装置和膜过滤装置中的一种,所述的压滤脱水装置为带式压滤机、板框压滤机二者中的一种,所述膜过滤装置为微滤、超滤二者中的一种,所述微滤的膜组件为陶瓷膜、金属膜组件二者中的一种,所述超滤的膜组件为陶瓷膜、金属膜组件二者中的一种。 The above ultrafiltration membrane filtration device 29
It is a sludge dewatering device. Of course, the sludge dewatering device may be one of a vacuum filtration dehydration device, a filter press dehydration device, a centrifugal dewatering device, and a membrane filtration device, and the filter press dewatering device is a belt filter press, a plate and frame filter press 2 In one of the above, the membrane filtration device is one of microfiltration and ultrafiltration, and the microfiltration membrane module is one of a ceramic membrane and a metal membrane module, the ultrafiltration The membrane module is one of a ceramic membrane and a metal membrane module.
表 7 再生水的水质情况
Table 7 Water quality of reclaimed water
序号 | 项目 | 单位 | 测定值 | 序号 | 项目 | 单位 | 测定值 |
1 | CODCr | mg/L | ≤ 5 | 5 | 浊度 | NTU | ≤ 1 |
2 | BOD5 | mg/L | ≤ 5 | 6 | 色度 | 倍 | ≤ 2 |
3 | SS | mg/L | ≤ 1 | 7 | pH | - | 7.1 |
4 | TN | mg/L | ≤ 5 | 8 | 电导率 | µS/cm | ≤ 172 |
Serial number | project | unit | measured value | Serial number | project | unit | measured value |
1 | COD Cr | Mg/L | ≤ 5 | 5 | Turbidity | NTU | ≤ 1 |
2 | BOD 5 | Mg/L | ≤ 5 | 6 | Chroma | Times | ≤ 2 |
3 | SS | Mg/L | ≤ 1 | 7 | pH | - | 7.1 |
4 | TN | Mg/L | ≤ 5 | 8 | Conductivity | μS/cm | ≤ 172 |
本发明容易在工业上实现,具备良好的工业实用性。 The present invention is easy to implement industrially and has good industrial applicability.
Claims (13)
- 一种污水处理及再生循环利用装置,其特征在于设有生化系统、电解系统、 MBR 系统和深度处理系统; A sewage treatment and regeneration recycling device characterized by being provided with a biochemical system, an electrolysis system, and an MBR System and advanced processing system;所述生化系统用于对污水进行生化处理得到生化出水,生化系统设有截流井、粗格栅、提升泵、细格栅、沉砂池、一级配水井、初沉池、生物处理设备、二级配水井、二沉池和污泥回流泵;截流井的进口通过管道与污水排出口联接,截流井的出口接粗格栅的进口、粗格栅的出口接提升泵的进口,提升泵的出口接细格栅的进口、细格栅的出口接沉砂池的进口,沉砂池的出口接一级配水井的进口,一级配水井的出口接初沉池的进口,初沉池的出口接生物处理设备的进口,生物处理设备的出口接二级配水井的进口,二级配水井的出口接二沉池的进口,二沉池的出水口与电解系统的进口联接,二沉池的污泥出口则一路经污泥回流泵与生物处理设备的进口联接,另一路与污泥处理系统的进口联接;The biochemical system is used for biochemical treatment of sewage to obtain biochemical water, and the biochemical system is provided with a shut-off well, a coarse grid, a lifting pump, a fine grid, a grit chamber, a first-stage water distribution well, a primary sedimentation tank, a biological treatment equipment, Secondary water distribution well, secondary sedimentation tank and sludge return pump; the inlet of the intercepting well is connected to the sewage discharge outlet through the pipeline, the outlet of the intercepting well is connected to the inlet of the coarse grid, the outlet of the coarse grid is connected to the inlet of the lift pump, and the lift pump The outlet of the fine grille is connected to the inlet of the fine grate and the inlet of the grit chamber. The outlet of the grit chamber is connected to the inlet of the first water distribution well. The outlet of the first water distribution well is connected to the inlet of the primary sinking pool. The export is connected to the import of biological treatment equipment, the outlet of the biological treatment equipment is connected to the inlet of the secondary distribution well, the outlet of the secondary distribution well is connected to the inlet of the secondary sedimentation tank, and the outlet of the secondary sedimentation tank is connected with the inlet of the electrolysis system, The sludge outlet of the tank is connected to the inlet of the biological treatment equipment through the sludge return pump, and the other is connected to the inlet of the sludge treatment system;所述生化系统还包括一个污泥处理系统,污泥处理系统用于将生化系统产生的污泥进行再生循环利用,污泥处理系统设有截止阀、一级污泥泵、电解机、缓冲罐、二级污泥泵、污水泵和污泥脱水装置;截止阀的进口通过管道接二沉池的污泥出口联接,截止阀的出口接一级污泥泵的进口,一级污泥泵的出口接电解机的进口,电解机的出口接缓冲罐的进口,缓冲罐的出水口经污水泵接生物处理设备的进水口,缓冲罐的污泥出口则经二级污泥泵接污泥脱水装置的进口,污泥脱水装置的滤液出口通过管道与二沉池的进水口联接,污泥脱水装置处理所得的泥饼则外运;The biochemical system further includes a sludge treatment system for recycling and recycling the sludge produced by the biochemical system, and the sludge treatment system is provided with a shut-off valve, a primary sludge pump, an electrolysis machine, and a buffer tank. , secondary sludge pump, sewage pump and sludge dewatering device; the inlet of the shut-off valve is connected to the sludge outlet of the secondary settling tank through the pipeline, and the outlet of the shut-off valve is connected to the inlet of the primary sludge pump, the primary sludge pump The outlet of the electrolysis machine is connected to the inlet of the electrolyzer, the outlet of the electrolysis machine is connected to the inlet of the buffer tank, the outlet of the buffer tank is connected to the water inlet of the biological treatment equipment through the sewage pump, and the sludge outlet of the buffer tank is dewatered by the sludge of the secondary sludge pump. The inlet of the device, the filtrate outlet of the sludge dewatering device is connected to the water inlet of the secondary settling tank through the pipeline, and the mud cake obtained by the sludge dewatering device is shipped out;所述电解系统用于对生化处理排放污水进行电解处理,电解系统设有截止阀、供水泵和电解机;截止阀的进口外接生化出水排出口,供水泵的进口接截止阀的出口,供水泵的出口接电解机的进口,电解机的出口与 MBR 系统的进口联接;The electrolysis system is used for electrolyzing the biochemical treatment sewage, the electrolysis system is provided with a shut-off valve, a water supply pump and an electrolysis machine; the inlet of the shut-off valve is externally connected with a biochemical water discharge port, the inlet of the water supply pump is connected to the outlet of the shut-off valve, and the water supply pump The outlet of the electrolysis machine, the outlet of the electrolysis machine Import connection of the MBR system;所述 MBR 系统用于将电解系统所得净化污水进行进一步处理, MBR 系统设有截止阀、格栅、 MBR 反应池、 MBR 膜组件、鼓风机、曝气器、排污泵、出水泵、初级再生水贮罐和 MBR 清洗系统;所述截止阀的进口接电解系统的电解机的出口,截止阀出口接格栅的进口,格栅的出口接 MBR 反应池的进口, MBR 膜组件浸没在 MBR 反应池内,通过鼓风机及分布的曝气器对其进行曝气, MBR 反应池的滤液出口接出水泵的进口,出水泵的出口接初级再生水贮罐的进口, MBR 反应池的污泥出口接排污泵的进口,污泥经过排污泵抽吸至污泥处理系统进行处理;The MBR system is used for further processing the purified sewage obtained by the electrolysis system, and the MBR system is provided with a shut-off valve, a grid, an MBR reaction tank, and an MBR. Membrane assembly, blower, aerator, sewage pump, water pump, primary reclaimed water storage tank and MBR cleaning system; the inlet of the shut-off valve is connected to the outlet of the electrolysis machine of the electrolysis system, the outlet of the shut-off valve is connected to the inlet of the grille, the grille Export At the inlet of the MBR reaction cell, the MBR membrane module is immersed in the MBR reaction tank and aerated by a blower and a distributed aerator, MBR The filtrate outlet of the reaction tank is connected to the inlet of the water pump, and the outlet of the outlet water pump is connected to the inlet of the primary reclaimed water storage tank, MBR The sludge outlet of the reaction tank is connected to the inlet of the sewage pump, and the sludge is pumped to the sludge treatment system for treatment by the sewage pump;所述深度处理系统用于将 MBR 系统处理所得的初级再生水进行电容吸附脱盐、分离,得透析水和浓缩水,透析水进一步通过消毒得到再生水,深度处理系统设有截止阀、提升泵、保安过滤器、供水泵、电容脱盐装置、消毒装置、再生水贮罐和浓缩水增压泵;所述截止阀的进口接 MBR 系统初级再生水贮罐的出口,截止阀出口接提升泵的进口,提升泵的出口接保安过滤器的进口,保安过滤器的出口接供水泵的进口,供水泵的进口接电容脱盐装置的进口,电容脱盐装置的透析水出口接消毒装置的进口,消毒装置的出口接再生水贮罐的进口;深度处理系统将 MBR 系统所得初级再生水经保安过滤器后用供水泵泵入电容脱盐装置,经电容脱盐装置处理得透析水和浓缩水,透析水经消毒装置消毒后进入贮罐得再生水;浓缩水则经过浓缩水增压泵回流进入电解净化系统循环使用。The depth processing system is used to MBR The primary reclaimed water obtained by the system is subjected to capacitive adsorption desalination and separation to obtain dialysis water and concentrated water, and the dialysis water is further purified to obtain reclaimed water. The advanced treatment system is provided with a shut-off valve, a lift pump, a security filter, a water supply pump, a capacitor desalination device, Disinfection device, reclaimed water storage tank and concentrated water booster pump; inlet of the shut-off valve MBR The outlet of the system primary reclaimed water storage tank, the outlet of the shut-off valve is connected to the inlet of the lift pump, the outlet of the lift pump is connected to the inlet of the security filter, the outlet of the security filter is connected to the inlet of the water supply pump, and the inlet of the water supply pump is connected to the inlet of the capacitor desalination device. The dialysis water outlet of the capacitor desalination device is connected to the inlet of the sterilizing device, and the outlet of the sterilizing device is connected to the inlet of the reclaimed water storage tank; the advanced treatment system will MBR The primary reclaimed water obtained by the system is pumped into the capacitor desalination device by the water supply pump through the security filter, and the dialysis water and the concentrated water are treated by the capacitor desalination device. The dialysis water is disinfected by the disinfection device and then enters the storage tank to obtain the reclaimed water; the concentrated water is increased by the concentrated water. The pressure pump is returned to the electrolytic purification system for recycling.
- 如权利要求 1 所述的一种污水处理及再生循环利用装置,其特征在于所述生物处理设备为厌氧池、缺氧池、曝气池、氧化沟、序批式反应器( SBR )、生物滤池、生物转盘或生物接触氧化池的一种或两种以上的组合。Claims 1 The sewage treatment and regeneration recycling device is characterized in that the biological treatment equipment is an anaerobic tank, an anoxic tank, an aeration tank, an oxidation ditch, a sequencing batch reactor (SBR) One or a combination of two or more of a biofilter, a biological turntable or a biological contact oxidation bath.
- 如权利要求 1 所述的一种污水处理及再生循环利用装置,其特征在于所述所述电解机设有电源和电解槽;所述电解槽内的电极材料为石墨、钛、铁、铝、锌、铜、铅、镍、钼、铬、合金和纳米催化惰性材料中的一种。Claims 1 The sewage treatment and regeneration recycling device is characterized in that the electrolysis machine is provided with a power source and an electrolytic cell; the electrode materials in the electrolytic cell are graphite, titanium, iron, aluminum, zinc, copper, One of lead, nickel, molybdenum, chromium, alloys and nanocatalytic inert materials.
- 如权利要求 3 所述的一种污水处理及再生循环利用装置,其特征在于所述纳米催化惰性电极的表层涂覆有晶粒为 10 ~ 35nm 的金属氧化物惰性催化涂层,所述纳米催化惰性电极的基板为钛板或塑料板。A sewage treatment and regeneration recycling apparatus according to claim 3, wherein the surface layer of said nanocatalytic inert electrode is coated with crystal grains of 10 to 35 nm. The metal oxide inert catalytic coating, the substrate of the nano catalytic inert electrode is a titanium plate or a plastic plate.
- 如权利要求 1 所述的一种污水处理及再生循环利用装置,其特征在于所述污泥脱水装置为真空过滤脱水装置、压滤脱水装置、离心脱水装置和膜过滤装置中的一种,所述的压滤脱水装置为带式压滤机、板框压滤机二者中的一种,所述膜过滤装置为微滤、超滤二者中的一种。Claims 1 The sewage treatment and regeneration recycling device is characterized in that the sludge dewatering device is one of a vacuum filtration dehydration device, a filter filtration dehydration device, a centrifugal dewatering device and a membrane filtration device, and the pressure filtration device The dewatering device is one of a belt filter press and a plate and frame filter press, and the membrane filtering device is one of microfiltration and ultrafiltration.
- 如权利要求 5 所述的一种污水处理及再生循环利用装置,其特征在于:所述微滤的膜组件为陶瓷膜、金属膜组件二者中的一种,所述超滤的膜组件为陶瓷膜、金属膜组件二者中的一种。 A sewage treatment and regeneration recycling device according to claim 5, wherein the microfiltration membrane module is one of a ceramic membrane and a metal membrane module, and the ultrafiltration membrane module is One of a ceramic film or a metal film assembly.
- 如权利要求 1 所述的一种污水处理及再生循环利用装置,其特征在于所述 MBR 膜组件选自聚偏氟乙烯中空纤维膜、聚丙烯中空纤维膜、聚砜中空纤维膜、聚醚砜、聚丙烯腈和聚氯乙烯中空纤维膜中的一种。 A sewage treatment and regeneration recycling apparatus according to claim 1, wherein said MBR The membrane module is one selected from the group consisting of a polyvinylidene fluoride hollow fiber membrane, a polypropylene hollow fiber membrane, a polysulfone hollow fiber membrane, a polyethersulfone, a polyacrylonitrile, and a polyvinyl chloride hollow fiber membrane.
- 如权利要求 1 或 7 所述的一种污水处理及再生循环利用装置,其特征在于所述 MBR 膜组件的膜孔径为 0.10 ~ 0.2 μ m ,工作压力为 -1 ~ -50kPa ,工作温度为 5 ~ 45 ℃,适用 pH 为 1 ~ 14 。 A sewage treatment and regeneration recycling apparatus according to claim 1 or 7, wherein the membrane pore size of said MBR membrane module is 0.10 ~ 0.2 μ m, working pressure is -1 ~ -50kPa, working temperature is 5 ~ 45 °C, suitable for pH 1 ~ 14.
- 如权利要求 1 所述的一种污水处理及再生循环利用装置,其特征在于所述 MBR 清洗系统用于清洗 MBR 膜组件, MBR 清洗系统设有清洗液罐、反冲洗泵和截止阀;清洗液罐的出口接反冲洗泵的进口,反冲洗泵的出口接截止阀的进口,截止阀的出口接 MBR 系统。 A sewage treatment and regeneration recycling apparatus according to claim 1, wherein said MBR cleaning system is used for cleaning MBR The membrane module, the MBR cleaning system is provided with a cleaning liquid tank, a backwashing pump and a shut-off valve; the outlet of the cleaning liquid tank is connected to the inlet of the backwashing pump, the outlet of the backwashing pump is connected to the inlet of the shut-off valve, and the outlet of the shut-off valve is connected to the MBR. System.
- 如权利要求 1 所述的一种污水处理及再生循环利用装置,其特征在于所述消毒装置为电解机、加氯系统、二氧化氯消毒器、臭氧消毒系统和紫外消毒器中的一种。Claims 1 The invention relates to a sewage treatment and regeneration recycling device, characterized in that the disinfection device is one of an electrolysis machine, a chlorination system, a chlorine dioxide sterilizer, an ozone disinfection system and an ultraviolet sterilizer.
- 一种污水处理及再生循环利用方法,其特征在于,使用如权利要求 1 所述一种污水处理及再生循环利用装置,所述方法包括以下步骤:A sewage treatment and regeneration recycling method, characterized in that the use of claim 1 The invention relates to a sewage treatment and regeneration recycling device, and the method comprises the following steps:1 )生化处理:污水经截流井进入生化系统,通过处理降低污水中的油脂、浮渣、 SS 、 COD 和 BOD ,使其各项指标达到 GB 18918-2002 《城镇污水处理厂污染物排放标准》三级排放标准,再进入后续处理工序;1) Biochemical treatment: sewage enters the biochemical system through the intercepting well, and reduces the oil, scum, SS, COD and BOD in the sewage through treatment. , so that its indicators meet the GB 18918-2002 "Sewage Treatment Plant Pollutant Emission Standards" three-level emission standards, and then enter the subsequent processing procedures;2 )电解:将生化出水经水泵提取后,输入电解机中进行电解;2) Electrolysis: After the biochemical effluent is extracted by the water pump, it is input into the electrolysis machine for electrolysis;3 ) MBR 系统过滤:将经过电解系统处理所得的净化污水经管道流入 MBR 系统,进行 MBR 系统处理分离得初级再生水;3) MBR system filtration: the purified sewage treated by the electrolysis system flows into the MBR system through the pipeline for MBR The system processes the separated primary reclaimed water;4 )电容脱盐和消毒:将经过 MBR 系统过滤所得的初级再生水经过供水泵泵入电容脱盐装置,脱盐分离得透析水和浓缩水,透析水经过消毒装置后进入贮罐得再生水;4) Capacitor desalination and disinfection: will pass MBR The primary reclaimed water obtained by the system filtration is pumped into the capacitor desalination device through the water supply pump, and the dialysis water and the concentrated water are separated by desalting, and the dialysis water passes through the disinfection device and enters the storage tank to obtain the reclaimed water;5 )污泥处理:生化系统产生的污泥进入污泥处理系统,经过电解和接触反应破坏污泥的结构,破解微生物的细胞壁,微生物胞内物质流出,进入水相,使难降解的固体性物质变为易降解的溶解性物质,然后再通过污水泵回流至生物处理设备中,为微生物所循环利用;剩余污泥则进入污泥脱水装置得滤液和泥饼,滤液经管道回流至二沉池,而泥饼则外运。5 Sludge treatment: The sludge produced by the biochemical system enters the sludge treatment system, destroys the structure of the sludge through electrolysis and contact reaction, breaks the cell wall of the microorganism, and the microbial intracellular material flows out into the water phase, making the hardly degradable solid matter It becomes a degradable dissolved substance, and then is returned to the biological treatment equipment through the sewage pump to be recycled by the microorganisms; the excess sludge enters the sludge dewatering device to obtain the filtrate and the mud cake, and the filtrate is returned to the secondary sedimentation tank through the pipeline. The mud cake is shipped out.
- 如权利要求 11 所述的一种污水处理及再生循环利用方法,其特征在于在步骤 2 )中,所述电解的电解槽的工作电压为 2 ~ 250V ,相邻两个电极间的电压为 2 ~ 18V ,电流密度为 3 ~ 400mA/cm2 。A sewage treatment and regeneration cycle utilization method according to claim 11, wherein in the step 2), the electrolytic electrolytic cell has an operating voltage of 2 to 250 V, and the voltage between the adjacent two electrodes is 2 ~ 18V, current density is 3 ~ 400mA / cm 2 .
- 如权利要求 11 所述的一种污水处理及再生循环利用方法,其特征在于在步骤 4 )中,所述电容脱盐的操作条件为直流电压 110V/m ~2 × 106V/m 。A sewage treatment and regeneration cycle utilization method according to claim 11, wherein in the step 4), the operation condition of the capacitor desalination is a direct current voltage of 110 V/m to 2 × 10 6 V/m.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210132806.7 | 2012-05-03 | ||
CN2012101328067A CN102674628B (en) | 2012-05-03 | 2012-05-03 | Sewage treatment and regeneration cyclic utilization device and sewage treatment and regeneration cyclic utilization method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013163963A1 true WO2013163963A1 (en) | 2013-11-07 |
Family
ID=46807267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/076367 WO2013163963A1 (en) | 2012-05-03 | 2013-05-29 | Device for sewage treatment and regenerative recycling and method thereof |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN102674628B (en) |
WO (1) | WO2013163963A1 (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104649522A (en) * | 2015-03-06 | 2015-05-27 | 福建省首融环境科技有限公司 | Treatment device and method of lignite low-temperature carbonization waste water |
CN104891730A (en) * | 2015-05-05 | 2015-09-09 | 何锦柱 | Tap water regeneration and activation device utilizing natural photosynthesis |
CN105399271A (en) * | 2015-11-17 | 2016-03-16 | 罗依依 | Device and method for recycling petroleum and phenol from oilfield industry wastewater and treating and regenerating wastewater |
CN105481164A (en) * | 2014-09-15 | 2016-04-13 | 江苏远兴环保集团有限公司 | Tobacco-waste-water processing technology |
CN105600976A (en) * | 2015-11-02 | 2016-05-25 | 罗依依 | Apparatus and method for recovering petroleum and phenols from oilfield produced wastewater |
CN105712574A (en) * | 2015-03-06 | 2016-06-29 | 泉州市天龙环境工程有限公司 | Treatment method for lignite low temperature carbonization wastewater |
CN106315966A (en) * | 2015-06-25 | 2017-01-11 | 广东卓信水处理设备有限公司 | Water treatment device and method thereof |
CN106746364A (en) * | 2017-02-15 | 2017-05-31 | 青岛蓝谷化学有限公司 | A kind of oil field extracted water resource utilization method and its device |
CN106830521A (en) * | 2017-02-17 | 2017-06-13 | 青岛蓝谷化学有限公司 | A kind of fishes and shrimps water for larval nursing processing method and its device |
CN106946411A (en) * | 2017-04-14 | 2017-07-14 | 中建八局第建设有限公司 | One stud farm's sewage disposal system |
CN107055944A (en) * | 2017-02-27 | 2017-08-18 | 陕西省石油化工研究设计院 | A kind of emulsion paint Waste Water Treatment and method |
CN107055968A (en) * | 2017-05-27 | 2017-08-18 | 山东金利源毛绒制品有限公司 | A kind of wool product wash water treating stations |
CN108689554A (en) * | 2018-07-23 | 2018-10-23 | 蔡林祥 | A kind of Treated sewage reusing device |
WO2019177490A1 (en) * | 2018-03-14 | 2019-09-19 | Владимир Викторович МОСКАЛЁВ | Method for recycling oily water as a means of improving ecological safety |
CN111217491A (en) * | 2020-03-05 | 2020-06-02 | 广东水清环保科技有限公司 | Anaerobic biogas slurry concentrated fertilizer production method and system |
CN113187547A (en) * | 2021-05-10 | 2021-07-30 | 河南龙膜环保技术有限公司 | Intelligent cleaning system for underground water sump of coal mine |
CN114159847A (en) * | 2021-07-07 | 2022-03-11 | 云南北斗环境工程有限公司 | Gravity micro-sieve sewage filtering purification method |
CN114368818A (en) * | 2022-01-21 | 2022-04-19 | 江苏天楹环保能源成套设备有限公司 | Preparation system and preparation method of circulating cooling water make-up water of power plant |
CN115108629A (en) * | 2022-07-26 | 2022-09-27 | 南京高科环境科技有限公司 | Advanced sewage treatment method and system |
CN115321709A (en) * | 2022-08-15 | 2022-11-11 | 杭州达利富丝绸染整有限公司 | Environment-friendly dyeing and finishing sewage cycle processing system and multistage pond |
CN115895789A (en) * | 2022-10-31 | 2023-04-04 | 华能济宁运河发电有限公司 | Universal cleaning agent for cleaning cartridge filter element of security filter and online cleaning process |
CN118026407A (en) * | 2024-04-11 | 2024-05-14 | 广东海洋大学 | Sewage treatment device based on self-cleaning multi-mode membrane component |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102674628B (en) * | 2012-05-03 | 2013-08-28 | 波鹰(厦门)科技有限公司 | Sewage treatment and regeneration cyclic utilization device and sewage treatment and regeneration cyclic utilization method |
CN103214153B (en) * | 2013-05-19 | 2014-11-05 | 波鹰(厦门)科技有限公司 | Regenerative cycle and utilization method for papermaking deep-treatment wastewater |
CN103588313B (en) * | 2013-10-31 | 2015-10-07 | 浙江大学舟山海洋研究中心 | Close-coupled processing fishery products thaw the device of waste water and application |
CN104150695B (en) * | 2014-07-25 | 2016-01-27 | 席北斗 | A kind of blodisc goes out the apparatus and method of advanced water treatment process |
CN104291535A (en) * | 2014-10-31 | 2015-01-21 | 苏州腾纳环保科技有限公司 | Domestic sewage purification process |
CN104544549A (en) * | 2014-12-31 | 2015-04-29 | 贵州中烟工业有限责任公司 | Electronic cigarette smoke solution prepared through green tea leaf extract |
US20170095757A1 (en) | 2015-05-27 | 2017-04-06 | Flow Control LLC | Cartridge Accumulator |
EP3302185A4 (en) | 2015-05-27 | 2019-01-16 | Flow Control LLC. | Cartridge pump |
CN105174633A (en) * | 2015-09-28 | 2015-12-23 | 罗依依 | Comprehensive standard increase method for increasing standard of discharged water of municipal wastewater treatment plant from first grade B to first grade A |
CN105236662A (en) * | 2015-09-28 | 2016-01-13 | 罗依依 | Comprehensive standard improving apparatus for municipal sewage treatment plant discharge water from glade 1B to grade A |
TWI614218B (en) * | 2016-08-30 | 2018-02-11 | Thomas Wang | Ecological biological water purification system |
CN106673381A (en) * | 2016-11-03 | 2017-05-17 | 深圳市康源环境纳米科技有限公司 | Sludge treatment device and method |
CN107746150A (en) * | 2017-10-25 | 2018-03-02 | 王小平 | A kind of biological disc sewage disposal system |
CN107673556A (en) * | 2017-10-31 | 2018-02-09 | 安徽舜禹水务股份有限公司 | A kind of modularization sewage-treatment plant |
CN107892434B (en) * | 2017-11-22 | 2020-10-02 | 江苏江华水处理设备有限公司 | Equipment and process for treating municipal sewage by ACT aerobic method |
CN110127929A (en) * | 2018-02-08 | 2019-08-16 | 孙双霜 | SBBR Combined sewage processing equipment and technique |
CN108862769B (en) * | 2018-07-09 | 2021-11-09 | 合肥森岑汽车用品有限公司 | Zero release environment-friendly feed production sewage treatment plant |
CN109231601A (en) * | 2018-11-13 | 2019-01-18 | 清远市兆成环保包装纸制品有限公司 | A kind of circulation utilization method of paper waste |
KR20220025807A (en) * | 2019-06-27 | 2022-03-03 | 데 노라 워터 테크놀로지즈, 엘엘씨 | Marine wastewater treatment methods and systems |
CN113526780A (en) * | 2020-04-17 | 2021-10-22 | 王芳 | Wastewater treatment system |
CN117247176B (en) * | 2023-10-07 | 2024-04-02 | 水电十四局华南建设发展有限公司 | Rural sewage integrated treatment equipment and treatment method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102145949A (en) * | 2011-02-22 | 2011-08-10 | 波鹰(厦门)科技有限公司 | Tanning advanced treatment wastewater recycling device and method |
CN102249380A (en) * | 2011-05-20 | 2011-11-23 | 华东师范大学 | Efficient liquid flow type membrane capacitance desalter |
CN102260013A (en) * | 2011-05-19 | 2011-11-30 | 波鹰(厦门)科技有限公司 | Device and method for preparing recycled water on basis of electrolysis and double-membrane technology |
CN102674628A (en) * | 2012-05-03 | 2012-09-19 | 波鹰(厦门)科技有限公司 | Sewage treatment and regeneration cyclic utilization device and sewage treatment and regeneration cyclic utilization method |
CN202576161U (en) * | 2012-05-03 | 2012-12-05 | 波鹰(厦门)科技有限公司 | Sewage treatment and regenerative cycle utilization plant |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7695624B2 (en) * | 2008-06-09 | 2010-04-13 | Otv Sa | Method and system for treating water and utilizing a membrane filtering system |
CN101492186A (en) * | 2009-03-05 | 2009-07-29 | 陈飙 | Method and device for circulation and regeneration of acidic waste etching liquid |
CN101891323B (en) * | 2010-04-27 | 2011-12-07 | 南京源泉环保科技股份有限公司 | Method for classifying, treating and recycling plating washing water on line |
-
2012
- 2012-05-03 CN CN2012101328067A patent/CN102674628B/en not_active Expired - Fee Related
-
2013
- 2013-05-29 WO PCT/CN2013/076367 patent/WO2013163963A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102145949A (en) * | 2011-02-22 | 2011-08-10 | 波鹰(厦门)科技有限公司 | Tanning advanced treatment wastewater recycling device and method |
CN102260013A (en) * | 2011-05-19 | 2011-11-30 | 波鹰(厦门)科技有限公司 | Device and method for preparing recycled water on basis of electrolysis and double-membrane technology |
CN102249380A (en) * | 2011-05-20 | 2011-11-23 | 华东师范大学 | Efficient liquid flow type membrane capacitance desalter |
CN102674628A (en) * | 2012-05-03 | 2012-09-19 | 波鹰(厦门)科技有限公司 | Sewage treatment and regeneration cyclic utilization device and sewage treatment and regeneration cyclic utilization method |
CN202576161U (en) * | 2012-05-03 | 2012-12-05 | 波鹰(厦门)科技有限公司 | Sewage treatment and regenerative cycle utilization plant |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105481164A (en) * | 2014-09-15 | 2016-04-13 | 江苏远兴环保集团有限公司 | Tobacco-waste-water processing technology |
CN105712574A (en) * | 2015-03-06 | 2016-06-29 | 泉州市天龙环境工程有限公司 | Treatment method for lignite low temperature carbonization wastewater |
CN104649522A (en) * | 2015-03-06 | 2015-05-27 | 福建省首融环境科技有限公司 | Treatment device and method of lignite low-temperature carbonization waste water |
CN104891730A (en) * | 2015-05-05 | 2015-09-09 | 何锦柱 | Tap water regeneration and activation device utilizing natural photosynthesis |
CN106315966A (en) * | 2015-06-25 | 2017-01-11 | 广东卓信水处理设备有限公司 | Water treatment device and method thereof |
CN105600976A (en) * | 2015-11-02 | 2016-05-25 | 罗依依 | Apparatus and method for recovering petroleum and phenols from oilfield produced wastewater |
CN105399271A (en) * | 2015-11-17 | 2016-03-16 | 罗依依 | Device and method for recycling petroleum and phenol from oilfield industry wastewater and treating and regenerating wastewater |
CN106746364A (en) * | 2017-02-15 | 2017-05-31 | 青岛蓝谷化学有限公司 | A kind of oil field extracted water resource utilization method and its device |
CN106746364B (en) * | 2017-02-15 | 2023-06-30 | 青岛北方节能环保有限公司 | Oil field produced water recycling method and device |
CN106830521A (en) * | 2017-02-17 | 2017-06-13 | 青岛蓝谷化学有限公司 | A kind of fishes and shrimps water for larval nursing processing method and its device |
CN107055944B (en) * | 2017-02-27 | 2023-05-16 | 陕西省石油化工研究设计院 | Emulsion paint wastewater treatment system and method |
CN107055944A (en) * | 2017-02-27 | 2017-08-18 | 陕西省石油化工研究设计院 | A kind of emulsion paint Waste Water Treatment and method |
CN106946411A (en) * | 2017-04-14 | 2017-07-14 | 中建八局第建设有限公司 | One stud farm's sewage disposal system |
CN106946411B (en) * | 2017-04-14 | 2023-10-13 | 中建八局第一建设有限公司 | Wastewater treatment system for horse-house |
CN107055968A (en) * | 2017-05-27 | 2017-08-18 | 山东金利源毛绒制品有限公司 | A kind of wool product wash water treating stations |
RU2703628C2 (en) * | 2018-03-14 | 2019-10-21 | Владимир Викторович Москалёв | Method for utilization of oil-containing water as method for increasing environmental safety |
WO2019177490A1 (en) * | 2018-03-14 | 2019-09-19 | Владимир Викторович МОСКАЛЁВ | Method for recycling oily water as a means of improving ecological safety |
CN108689554A (en) * | 2018-07-23 | 2018-10-23 | 蔡林祥 | A kind of Treated sewage reusing device |
CN111217491A (en) * | 2020-03-05 | 2020-06-02 | 广东水清环保科技有限公司 | Anaerobic biogas slurry concentrated fertilizer production method and system |
CN113187547A (en) * | 2021-05-10 | 2021-07-30 | 河南龙膜环保技术有限公司 | Intelligent cleaning system for underground water sump of coal mine |
CN113187547B (en) * | 2021-05-10 | 2023-10-10 | 河南龙膜环保技术有限公司 | Intelligent cleaning system for underground water sump of coal mine |
CN114159847A (en) * | 2021-07-07 | 2022-03-11 | 云南北斗环境工程有限公司 | Gravity micro-sieve sewage filtering purification method |
CN114368818A (en) * | 2022-01-21 | 2022-04-19 | 江苏天楹环保能源成套设备有限公司 | Preparation system and preparation method of circulating cooling water make-up water of power plant |
CN115108629A (en) * | 2022-07-26 | 2022-09-27 | 南京高科环境科技有限公司 | Advanced sewage treatment method and system |
CN115108629B (en) * | 2022-07-26 | 2023-11-14 | 南京高科环境科技有限公司 | Advanced sewage treatment method and system |
CN115321709A (en) * | 2022-08-15 | 2022-11-11 | 杭州达利富丝绸染整有限公司 | Environment-friendly dyeing and finishing sewage cycle processing system and multistage pond |
CN115321709B (en) * | 2022-08-15 | 2023-10-17 | 杭州达利富丝绸染整有限公司 | Dyeing and finishing sewage circulation treatment system and multistage pond |
CN115895789A (en) * | 2022-10-31 | 2023-04-04 | 华能济宁运河发电有限公司 | Universal cleaning agent for cleaning cartridge filter element of security filter and online cleaning process |
CN118026407A (en) * | 2024-04-11 | 2024-05-14 | 广东海洋大学 | Sewage treatment device based on self-cleaning multi-mode membrane component |
Also Published As
Publication number | Publication date |
---|---|
CN102674628B (en) | 2013-08-28 |
CN102674628A (en) | 2012-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013163963A1 (en) | Device for sewage treatment and regenerative recycling and method thereof | |
WO2012155607A1 (en) | Apparatus for producing reclaimed water based on electrolysis and double membrane technologies and method thereof | |
WO2012126316A2 (en) | Sewage recycling device based on electrolysis and mbr technologies and method thereof | |
EP2657198B1 (en) | Printing and dyeing wastewater treatment and reuse apparatus and method therefor | |
CN202576160U (en) | Municipal sewage treatment and regeneration recycling device | |
CN101979344B (en) | Nano catalytic electrolysis technology and membrane technology-based leather wastewater treatment and recycling method | |
WO2011063769A1 (en) | Purification device and method for advancedly treating printing and dyeing wastewater | |
WO2012088867A1 (en) | Nano catalytic electrolysis and flocculation apparatus | |
EP2657197B1 (en) | Tanning wastewater treatment and reuse apparatus and method therefor | |
WO2013010388A1 (en) | Apparatus for treating landfill leachate and treatment method therefor | |
WO2013156002A1 (en) | Nano catalyst electrolysis flocculation air flotation device | |
WO2013143505A1 (en) | Seawater desalination device and method | |
CN102786182B (en) | Device for processing landfill leachate | |
CN202576161U (en) | Sewage treatment and regenerative cycle utilization plant | |
CN104016547A (en) | Advanced treatment and zero emission process for coking wastewater | |
WO2012171365A1 (en) | Electrochemistry and electrodialysis-based apparatus and method for recycling wastewater from papermaking | |
CN106800356A (en) | A kind of advanced treatment of wastewater regeneration device based on biochemical and electrolysis tech | |
WO2013156003A1 (en) | New nano catalyst electrolysis device | |
CN2856037Y (en) | Sewage reclaiming treatment unit | |
CN103508607B (en) | Improve the method for advanced treatment of wastewater producing water ratio | |
JPH0839075A (en) | Method and equipment for treating sewage | |
CN201908025U (en) | Printing and dyeing wastewater treatment recycling device based on nano-catalysis electrolysis and membrane technology | |
CN105174565B (en) | Acrylic fiber wastewater deep treatment method | |
CN202089868U (en) | Recycled water manufacturing device based on electrolysis and double-film technology | |
KR20000046312A (en) | Treatment process for highly concentrated wastewater |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13784684 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13784684 Country of ref document: EP Kind code of ref document: A1 |