CN105776684B - A kind of method that urban wastewater treatment and resource recycling utilize - Google Patents
A kind of method that urban wastewater treatment and resource recycling utilize Download PDFInfo
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- CN105776684B CN105776684B CN201610320765.2A CN201610320765A CN105776684B CN 105776684 B CN105776684 B CN 105776684B CN 201610320765 A CN201610320765 A CN 201610320765A CN 105776684 B CN105776684 B CN 105776684B
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- 238000000034 method Methods 0.000 title claims abstract description 111
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 48
- 238000004064 recycling Methods 0.000 title claims abstract description 41
- 239000010865 sewage Substances 0.000 claims abstract description 228
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000011282 treatment Methods 0.000 claims abstract description 99
- 239000010802 sludge Substances 0.000 claims abstract description 58
- 238000012545 processing Methods 0.000 claims abstract description 46
- 230000008569 process Effects 0.000 claims abstract description 40
- 230000005611 electricity Effects 0.000 claims abstract description 23
- 238000001556 precipitation Methods 0.000 claims abstract description 22
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 8
- 238000004062 sedimentation Methods 0.000 claims description 43
- 239000002893 slag Substances 0.000 claims description 27
- 238000009826 distribution Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 26
- 238000005276 aerator Methods 0.000 claims description 23
- 239000007772 electrode material Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 238000005352 clarification Methods 0.000 claims description 13
- 239000003337 fertilizer Substances 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
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- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000010970 precious metal Substances 0.000 claims description 5
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910010441 TiO2-RuO2 Inorganic materials 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
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- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 11
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- 239000002699 waste material Substances 0.000 abstract description 9
- 230000018044 dehydration Effects 0.000 abstract description 6
- 238000006297 dehydration reaction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003895 organic fertilizer Substances 0.000 abstract description 6
- 238000000746 purification Methods 0.000 abstract description 6
- 210000004400 mucous membrane Anatomy 0.000 abstract description 5
- 229920002401 polyacrylamide Polymers 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000006722 reduction reaction Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000001351 cycling effect Effects 0.000 abstract description 3
- 230000003311 flocculating effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 14
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 14
- 238000005273 aeration Methods 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 13
- 230000003647 oxidation Effects 0.000 description 13
- 238000007254 oxidation reaction Methods 0.000 description 13
- 239000002351 wastewater Substances 0.000 description 13
- 238000005265 energy consumption Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- 238000005345 coagulation Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 239000003344 environmental pollutant Substances 0.000 description 10
- 231100000719 pollutant Toxicity 0.000 description 10
- 230000001376 precipitating effect Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000005868 electrolysis reaction Methods 0.000 description 8
- 239000007800 oxidant agent Substances 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 239000004155 Chlorine dioxide Substances 0.000 description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 235000019398 chlorine dioxide Nutrition 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 7
- 230000005518 electrochemistry Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 238000012494 forced degradation Methods 0.000 description 6
- 238000003411 electrode reaction Methods 0.000 description 5
- 238000005189 flocculation Methods 0.000 description 5
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- 230000003472 neutralizing effect Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000726221 Gemma Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000004021 humic acid Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
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- 150000003839 salts Chemical class 0.000 description 2
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- 230000001360 synchronised effect Effects 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- 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
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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
The present invention relates to a kind of methods that urban wastewater treatment and resource recycling utilize, it mainly include sewage disinfection treatment, electrochemical treatments and precipitation process and three steps of resource utilization, this method can be by contaminated water body purification repeated recycling utilize, by the waste residue (sludge) of Precipitation, conversion, reduction renewable resources recycle, manufacture microelement biological humic organic fertilizer, sale margin.Electrochemical treatments are carried out to sewage using this method, it does not need using flocculating polymer medicament polyacrylamide, main consumption electric energy, every 1 ton of sewage of processing consumes≤0.1 degree of electricity, reduce 30% or more sewage treatment expense, it is more outstanding to be, the sludge for reducing > 50% generates, and the viscosity of sludge is eliminated significantly, be not in the state of waste residue " mucous membrane Bao Shui ", and be easy precipitation and filter-press dehydration, the moisture content of sludge is made to be reduced to 50% or less, solve " shipwreck use out " and " malicious mud besieged city " two hang-ups, also creation efficiency of cycling economy.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to what a kind of urban wastewater treatment and resource recycling utilized
Method.
Background technique
China is the country of shortage of water resources, and currently, increasingly serious water environment pollution and shortage of water resources problem are serious
Constrain the development of China's economic society.Municipal sewage is subjected to purified treatment, makes up to the purpose of recycling, can be saved big
The water resource of amount.Urban wastewater treatment firm carries the processing heavy burden of most sewage (mainly sanitary sewage) in city,
And in water pollutant degradation subtractive process, and will necessarily constantly generate large number of waste residue mud, it is necessary to it is pocessed.City
Town sewage treatment plant sewage source, the mostly life of organ, unit, school, hospital, army, restaurant, resident etc. are dirty
Water is also discharged to sewage treatment plant furthermore, it is also possible to there is individual enterprises of factory to handle the industrial wastewater of (COD about 400mg/L) still not up to standard
After reprocessing (or dilution), discharge together.Therefore, into the sewage of sewage plant processing, composition is more complicated, both containing organic
Substance, inorganic substances also contain heavy metal, chemical substance, also have germ virus gemma harmful substance etc..It deals with,
Single certain technology or certain Water purification medicament are taken, is all difficult processing thoroughly, realizes the up to standard of real meaning.
For urban wastewater treatment method there are many kinds of, can generally be divided into following three categories: physical method, chemical method
And bioanalysis.Physical method is usually to handle sewage with modes such as filtering, precipitating, air bearings, and filtering, the precipitation method have disengaging time
Short, the advantages that device is simple, treating capacity is big, but it is higher to processing equipment performance requirement, and investment cost and operating cost are also higher,
The operating conditions such as the treatment effeciency of gas floatation process and feed entrance point, air inflow, liquid level, gas floatation agent dosage are closely related, operation
Complex management, and muddy waste water can only be handled, it cannot handle containing toxic chemical substance and highly concentrated waste water；Chemical method
Generally by the specific chemical reagent of addition, such as flocculant, complexing agent or soda acid inorganic agent, at element toxic in water
Reason, has that capital expenditure is few, simple process, operation is easy, low energy consumption, adaptable to the variation of temperature, but disadvantage is also ratio
It is more single, it is at high cost, the organic wastewater of the high concentration of content complexity cannot be handled, especially to waste water small molecular organic matter
Removal rate is lower, generally requires to be used in combination with other processing methods, and waste water could qualified discharge；Bioanalysis be it is most mature, can
One for the treatment of process leaned on, in bioremediation, and it is most widely used with activated sludge process, effect is preferable.Using active dirty
Mud method process sanitary sewage has effluent quality preferable, and system running and comparing is stable, and treatment effeciency is higher equal obvious excellent
Point, but also there is certain limitation simultaneously: the volume for handling structures is larger, and investment cost is very high, and system is to impact
The adaptability of load (pollutant burden of sewage amplifies or becomes smaller at double suddenly) is poor, generate a large amount of excess sludge need into
Row processing etc., more have one it is outstanding it is worth improve the serious phenomenon paid attention to, during being exactly Biochemical method town sewage,
The indexs such as nitrogen, phosphorus are usually easy exceeded to be difficult to solve.
Treatment of town sewage and sludge is handled at present, is generallyd use mechanical every slag, biochemical degradation, medicament purification, materialization flocculation, filters pressing
The conventional process techniques such as dehydration, can effectively degrade the indexs such as COD, SS, but undesirable, generally existing following situations: 1, of degrading
Degradation is difficult thoroughly: general pollutant can remove, and to those transparent chain cyclic macromolecular compounds for being dissolved in water, then it is incompetent
For power, target water, which is not achieved, in effluent quality to recycle, and have to discharge, significantly waste water resource.2, sludge difficulty is dehydrated:
Sewage treatment will necessarily generate a large amount of sludge, it can be described as " resource mislayed ", current nearly all field sewage
It handles (including industrial wastewater), when carrying out water, slag separation, all uses high polymer coagulant polyacrylamide bar none, it
Have the advantages that use is simple, effective and rapid, still, its separation process is the pollution encased in water with its macromolecule mucous membrane
Object molecule is adhesively-bonded together to form colloidal state group and is separated from water especially such as the capsule and pill of Bao Shui, precipitates into sludge precipitation rapidly.Just by
In its " mucous membrane Bao Shui " the difficult fatal negative interaction for crushing sad filter, cause sludge dewatering efficiency very poor, filter residue-sludge contains
Water rate is up to 70-80%, causes extreme difficulties to deep processing resource utilization, the too high processing of having no idea of moisture uses.It banks up
Dry, surface layer seems to have done the inside also like sugared heart egg, cannot use at all, and foul smell disturbs residents and causes to pollute again.Heating is dried
It goes ahead, consumption mass energy is more uneconomical.So sludge dewatering problem is simply at insurmountable barrier.
As described above, at present the various processing methods of urban wastewater treatment not can solve " degradation thorough " and
The problem of " Treatment of Sludge ", so many chemistry, biology and environmental science worker are in continuous comprehensive study in recent years
Sewage water treatment method, it is as follows that we retrieve relevant part document:
1, Chinese patent, application number: 201410361603.4, denomination of invention: a kind of method of sewage treatment, patent right
People: Mengzi Mining and Metallurgy Co., Ltd., address: Yunnan Province Hani-Yi Autonomous Prefecture of Honghe Mengzi city day road 66 is plucked
: a kind of method of sewage treatment belongs to environmentally friendly metallurgical technology field.The preprocessing process of sewage: first by waste acid and sewage
It neutralizes, send comprehensive slag library after physics settles by supernatant siphon the treatment fluid after neutralization, then through in coagulating sedimentation, reduction
It is sent to concentrator precipitating after clear liquid hardness and obtains filter-press residues and pressing filtering liquid through filter press filters pressing, filter-press residues return to comprehensive slag library；
The advanced treating of sewage: by obtained pressing filtering liquid through electrolytic oxidation, electroreduction, electrolytic flocculation and electrofloatation electrochemistry work
Electrochemical treatments liquid is obtained after skill processing；Electrochemical treatments liquid removes suspended matter in water removal through air bearing, again through filtration with manganese sand, activity
Filtrate is obtained after charcoal absorption；Filtrate is handled to obtain qualified discharge water quality through membranous system, and wherein membranous system includes nanofiltration, height
Press it is reverse osmosis, three groups of low pressure reverse osmosis.This method concentrator waste residue amount reduces, and cleaning cycle extends, and cost is reduced, and extends simultaneously
Sedimentation time for the treatment of fluid, water turbidity reduce.
2, Chinese patent, application number: 201410069088.2, a kind of denomination of invention: electrochemistry synchronous denitrification dephosphorizing device
And method for the treatment of city waste water, patentee: Ecological Environment Research Center, Chinese Academy of Sciences, address: Haidian District, Beijing City is double clear
Road 18, abstract: a kind of electrochemistry synchronous denitrification dephosphorizing device and method for the treatment of city waste water belong to sewage disposal technology neck
Domain.By the steady electrode of shape, iron electrode commonly used by electrochemical water treatment technology, aluminium electrode, magnesium electrode and copper modification stainless steel electricity
Pole combination can carry out the denitrogenation dephosphorizing processing of municipal sewage in same electrolytic cell, and apparatus structure is simple, easy to operate, efficiency
Height, good in nitrate nitrogen removal effect is, it can be achieved that scale, automated sewage processing.The invention method for the treatment of city waste water simple process, behaviour
Facilitate, save human and material resources, low energy consumption, and sewage pollution index removal rate is high, municipal sewage index COD, nitric acid
Salt nitrogen, ammonia nitrogen, total phosphorus removal rate respectively reach 92% or more.
3, Chinese patent, application number: 201210232453.8, a kind of denomination of invention: place of electrochemistry direct oxidation sludge
Science and engineering skill, patentee: Changzhou Expansion New Stuff Technology Co., Ltd., address: Jiangsu Province Xinbei district the Changjiang river Road 25
Numbers three brilliant industry parks the 1st buildings, abstract: it is direct to use two-stage electrochemistry for a kind for the treatment of process of electrochemistry direct oxidation sludge
Oxidation technology carries out oxygenolysis processing to the sludge of moisture content 99.6%, and excess sludge reduction is made to reach 95% or more, can be wide
It is general to be used for city domestic sewage treatment plant, urban comprehensive wastewater treatment plant, the Treatment of Sludge of city chemical industry sewage treatment plant and place
It sets, provides clean, low energy consumption solution for the safe handling disposition of sludge.
It is above-mentioned retrieve processing sewage or handle sludge method, all be have targetedly to sewage carry out processing or
Person is to handle again the sludge (filter residue) generated after sewage treatment, such as above-mentioned document 1 and document 2, although to sewage
After reason, sewage pollution index removal rate is high, but does not mention in the technical process of the two methods to sewage disposal process
The filter residue (sludge) of middle generation how to handle the problem of, therefore still can generate a large amount of excess sludge and be handled,
And can also there are problems that the dehydration of sludge difficulty during handling sludge.And document 3 mentioned above is for sewage treatment plant
The method that the sludge of middle generation is handled, but if according to the sludge that current urban wastewater treatment obtains, sludge is aqueous
Amount is high, and using the treatment process of electrochemistry direct oxidation sludge, its processing cost also can be high, so that sewage treatment plant is to dirt
Water, which carries out the cost that processing whole flow process is got off, to be improved.Therefore, it develops and a kind of good treatment effect both was played to sewage
Keep its degradation thorough, high-efficient；The moisture content of sludge can reduce again caused by, is not in the shape of waste residue " mucous membrane Bao Shui "
The sewage water treatment method of state.The cost that sewage treatment plant can more be reduced simultaneously, is only the only way of urban wastewater treatment.
Summary of the invention
It is an object of the invention to for " degradation is difficult thoroughly " present in existing process for town sewage treatment and " sludge hardly possible
The problem of dehydration ", provide a kind of new and high technology method that urban wastewater treatment renewable resources recycle.This method is overturned
Conventional treatment town domestic sewage relies on the traditional technology based on medicament that can purify town domestic sewage from being controlled source, reach
To drink, water supply standard；This method uses electrochemical treatments technology electrolysis-coagulation technique, replaces high polymer coagulant polyacrylamide
Amine improves dehydration rate, removal sludge viscosity, reduces the generation of slag (sludge) amount；This method not only substantially reduces urban life dirt
Water process operating cost, Er Qieshui, slag conversion reduction renewable resources all recycle and reuse, and create efficiency of cycling economy.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of method that urban wastewater treatment and resource recycling utilize, comprises the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting slagging-off to sewage
Processing, and be 7.5-9 with neutralizing regulator to adjust the pH of sewage, so that the SS value of sewage is reduced to 50mg/L hereinafter, being then injected into
In collecting tank, the sewage in collecting tank flows into sewage water inlet pipe, and sewage water inlet pipe connects the inlet distribution device of bottom of electrolytic tank, makes
Sewage is constantly injected into the bottom of electrolytic cell from top to down and flows to each place of bottom of electrolytic tank by inlet distribution device；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower,
In transport flow, sewage natural generate impulse force, then plus aeration stirring, plug-flow, just constantly seethe continuous flowing in a cell；Electricity
Electrode is installed in solution slot, electrode connects positive and negative polarities DC power supply respectively, and the voltage between two pole plates is 5~110V, opens
DC power supply carries out continuous electrochemical processing to sewage, and the mean residence time of sewage in a cell is 15-60 minutes, sewage
It is constantly entered in electrolytic cell by sewage water inlet pipe, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then successively
Overflow and go out by overflow weir through outlet pipe inject sedimentation basin in staticly settle；It is acted on, is collected micro- by Electrode Field in electrolytic cell
Chemical substance existing for the integrated application of the electrode reactions such as electrolysis, electrolysis-coagulation, catalysis oxidation, absorption and sewage Central Plains occurs
Chemically react strong oxidizer such as elemental oxygen, ozone, dissolved oxygen, chlorine, chlorine dioxide, hydrogen peroxide and the Gao Meng constantly generated
Hydrochlorate etc., chain rupture open loop, thaumatropy, forced degradation, advanced treating broken to pollutant progress molecule, water and slag divide rapidly
From water purifies rapidly clarification, the rapid Precipitation of slag；
(3) precipitation process and resource utilization: sewage after electrochemical treatments flows into sedimentation basin, the water and residual in sedimentation basin
Slag is rapidly separated precipitating, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water
Reservoir is transported to user to water supply network, and the sludge being precipitated in sedimentation basin is extracted out with dredge pump, after the sludge press filtration of extraction,
It is transported to micro- fertile workshop manufacture microelement biological humic organic fertilizer, is got a profit into market sale, or fortune goes fertilizer plant to do
Fertilizer.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, neutralization regulator as described in step (1) are
Sodium carbonate, sodium hydroxide, milk of lime, sulfuric acid or hydrochloric acid.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (1), by sewage injection collecting tank
Method are as follows: make sewage overflow inject collecting tank using height fall, or injected sewage in collecting tank using sewage pump.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, the electrolysis
The electrode material of slot Anodic be mild steel, graphite, the metal anode containing precious metal platinum, ruthenium, palladium, iridium or rhodium coatings and
It is coated with TiO2-RuO2 One of titanium-base anode of coating, the electrode material of cathode are mild steel.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (3) resource utilization, Precipitation
Sludge press filtration after moisture content be reduced to 50% or less.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, electrolytic cell
Structure includes: sink, electrode bar, sewage water inlet pipe, inlet distribution device, air blower or aerator, air intake duct and air
Dispenser, electrode bar are mounted at the inner peripheral wall along sink, form the pattern of inside and outside two circle, the electrode bar and power supply of outer ring
Cathode be connected, the electrode bar of inner ring is connected with the anode of power supply, and positive and negative electrode stick respectively connects, and be not in contact with each other mutually insulated,
Air intake duct is connected to air blower or aerator, and is connected at the air dispersers of bottom of electrolytic tank, air dispersers energy
The each place for the bottom for being distributed to electrolytic cell for keeping the air blasted more uniform, so that aeration is more uniform and comprehensive,
In sewage transport process, by the inlet distribution device of bottom of electrolytic tank, then plus aeration stirring, plug-flow so that sewage is in electrolytic cell
In do not stop to seethe continuous flowing；It is equipped with overflow weir in the edge of electrolytic cell upper end, is connected with outlet pipe, outlet pipe in overflow weir
It is connected in sedimentation basin.
The method that urban wastewater treatment renewable resources of the present invention recycle, in step (2) electrochemical treatments, every processing 1
Ton sewage consumes≤0.1 degree of electricity, greatly reduces the cost of sewage treatment.
The invention has the benefit that
1, the method that urban wastewater treatment and resource recycling of the present invention utilize, process is short, and time-consuming is few, and sewage collects through convergence
It in liquid slagging-off sand setting and adjusts, into after present treatment system, only passes through one processing unit of electrochemical treatments, replace traditional technology
Technique: preposition (medicament) processing, biochemical (activated sludge method) anaerobic-aerobic and oxygen processing, flocculation (dispensing degradation) processing, two
Grade precipitates the cumbersome process processes of complexity such as (one heavy two is heavy) processing, remaining mud concentration, wherein electrochemical treatments
Light electrolysis, the electrolysis-coagulation of process then makes instead of the flocculating polymer medicament polyacrylamide of grain slag separation, flocculation sedimentation
With, and making waste residue (mud) rapid natural sedimentation of precipitation and separation, viscosity lowers significantly, and sludge dewatering rate is improved by 20%
To 50%, mud water content is reduced to 50% hereinafter, be or else " sugared heart egg " state by 80%, fabulous to become resource and raw materials recovery
It utilizes.
2, contaminated water body purification can be repeated benefit by the method that urban wastewater treatment and resource recycling of the present invention utilize
With, various pollutants matter is contained in sewage, is acted on by Electrode Field in electrolytic cell, conversion reduction reaction occurs for these substances,
Oxidizing species are generated, are provided again so that being lost the polluter ﹣ raw material in sewage, material, auxiliary material, auxiliary agent, medicament etc.
Sourceization recycles, and from being controlled source, by sewage purification, reaches water supply standard, saves water resource.
3, the present invention uses electrochemical treatments technology electrolysis-coagulation technique, has overturned Physiochemical and biochemical drug-treated tradition skill
Art, instead of the use of expensive water purification agent, flocculant and drug by the way of electrolysis, processing system substantially eliminates secondary dirt
Dye improves waste residue dewatering rate, significantly removal viscosity, reduces slag (sludge) amount.And urban wastewater treatment of the present invention provides again
The method that source recycles, in step (2) electrochemical treatments, every 1 ton of sewage of processing consume≤0.1 degree it is electric, greatly reduce
The cost of sewage treatment.
4, the method that urban wastewater treatment of the invention and resource recycling utilize, sewage sludge harmlessness, whole after processing
Recycling, then through the ferment-fermented processing of biological humic patent, the biological humic organic composite fertilizer of high value is made, or match
Microelement biological humic organic composite fertilizer is made, for developing modern agriculture, promotes the ecological agriculture, improves soil, repair
Multiple vegetation, is transformed salt-soda soil.
5, the method and process that urban wastewater treatment of the invention and resource recycling utilize is stable, effluent quality is good, sludge
Yield greatly reduces, and operating cost is low, full automatic control, runs, safeguards simple and convenient, has zero-emission, complete
Using, it is pollution-free, increase benefit the characteristics of；It can be applied to the waste water control of grassroot project, device not up to standard can also be carried out
It is up to standard transformation and it is perfect.
6, the method that urban wastewater treatment of the invention and resource recycling utilize, discharge water outlet after treatment, can
The primary standard discharged is handled better than urban wastewater treatment firm specified in " integrated wastewater discharge standard " (GB18918-2002),
Reach the index of recycle-water.And sewage is handled using this method, the pollutant contained in useless (dirt) water and sewage is provided again
Sourceization all recycles；Then all recycling manufactures biological humic organic compound fertilizer to sludge, improves the utilization of resource
Rate, recycling income is very high, can continuous extra earning efficiency of cycling economy.This method treatment effeciency and high degree of automation, Er Qieliu
Cheng Jinglian is simple and direct, and energy consumption is very low, and labour cost greatly reduces, and processing cost will substantially reduce.
7, urban wastewater treatment of the invention and resource recycling by method mainly in the way of electrochemical treatments
Sewage is handled, it is that integrate a variety of electrode processes such as light electrolysis, electrolysis-coagulation, catalysis oxidation, absorption comprehensive
Close application, in sewage disposal process, the strong oxidizer generated in the strong oxidation and treatment process of electrochemical treatments such as:
Elemental oxygen, ozone, chlorine, chlorine dioxide, hydrogen peroxide and permanganate etc. strong oxidizer, can effectively kill all germs,
Virus and gemma, it is ensured that water outlet safe handling；Many is difficult to the pigment degraded, and through electrochemical treatments, chromophoric group is destroyed,
Or molecular entergy level changes, thus, absorption spectrum is changed, color no longer shows；Each heavy metal species and harmful substance,
Through electrochemical treatments, it is ensured that be degraded to 0.001 or less or be totally removed；Electrolysis-coagulation replaces flocculating polymer medicament poly- third
The use of acrylamide precipitates pulp water natural separation.Sewage is handled using the method for the present invention, does not reduce macromolecule singly
The expense of flocculation medicament polyacrylamide, it is more outstanding to be, reduce 50% sludge generation, and eliminate the viscosity of sludge, no
Will appear the state of waste residue " mucous membrane Bao Shui ", and be easy to be precipitated and filter-press dehydration, make the moisture content of sludge be reduced to 50% with
Under, sewage is handled using method of the invention, not only thoroughly solves " shipwreck use out " and " malicious mud besieged city " two hang-ups, but also
Economic benefit, social benefit, environmental benefit etc. etc. suffer from the advantage that conventional urban sewage treatment process is difficult analogy,
It takes the course of its own.
Detailed description of the invention
Fig. 1 is the process flow chart for the method that urban wastewater treatment of the present invention and resource recycling utilize；
Electrolytic cell and precipitating in the method electrochemical treatments that Fig. 2 utilizes for urban wastewater treatment of the present invention and resource recycling
The sectional view of pond connection, in figure, 1, sink, 2, the electrode bar of outer ring, 3, electrode bar 4, the sewage water inlet pipe of inner ring, 5, water inlet point
Cloth device, 6, air blower or aerator, 7, air intake duct, 8, air dispersers, 9, overflow weir, 10, outlet pipe, 11, sedimentation basin；
Electrolytic cell and precipitating in the method electrochemical treatments that Fig. 3 utilizes for urban wastewater treatment of the present invention and resource recycling
The top view of pond connection, in figure, 1, sink, 2, the electrode bar of outer ring, 3, electrode bar 4, the sewage water inlet pipe of inner ring, 5, water inlet point
Cloth device, 6, air blower or aerator, 7, air intake duct, 8, air dispersers, 9, overflow weir, 10, outlet pipe, 11, sedimentation basin.
Specific embodiment
Embodiment 1
A kind of method that urban wastewater treatment and resource recycling utilize, comprises the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting slagging-off to sewage
Processing, and be 7.5 with neutralizing regulator sodium carbonate to adjust the pH of sewage, makes the SS value of sewage be reduced to 50mg/L hereinafter, then,
Sewage overflow is set to inject collecting tank using height fall, the sewage for constantly injecting, laying in collecting tank, upper liquid is continuous after water is full
Overflow and go out, the sewage that overflows flows into sewage water inlet pipe, and sewage water inlet pipe connects the inlet distribution device of bottom of electrolytic tank, makes
Sewage is constantly injected into the bottom of electrolytic cell from top to down and flows to each place of bottom of electrolytic tank by inlet distribution device；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower,
In transport flow, sewage natural generate impulse force, then plus aeration stirring, plug-flow, just constantly seethe continuous flowing in a cell；Electricity
Electrode is installed in solution slot, electrode connects positive and negative polarities DC power supply respectively, and the voltage between two pole plates is 5V, in electrolytic cell
The electrode material of anode is graphite, and the electrode material of cathode is mild steel；It opens DC power supply and continuous electrochemical is carried out to sewage
Processing, the mean residence time of sewage in a cell are 60 minutes, and sewage constantly enters electrolytic cell by sewage water inlet pipe
In, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then successive overflow and go out injected by overflow weir through outlet pipe
It is staticly settled in sedimentation basin；It is acted on by Electrode Field in electrolytic cell, the electricity such as collection light electrolysis, electrolysis-coagulation, catalysis oxidation, absorption
It is such as former that the strong oxidizer that chemical reaction constantly generates occurs for chemical substance existing for pole reaction integrated application and sewage Central Plains
Sub- oxygen, ozone, dissolved oxygen, chlorine, chlorine dioxide, hydrogen peroxide and permanganate etc., chain rupture broken to pollutant progress molecule
Open loop, thaumatropy, forced degradation, advanced treating, water and slag are rapidly separated, and water purifies rapidly clarification, the rapid Precipitation of slag；
(3) precipitation process and resource utilization: sewage after electrochemical treatments flows into sedimentation basin, the water and residual in sedimentation basin
Slag is rapidly separated precipitating, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water
Reservoir is transported to user to water supply network, and the sludge high-performance that is precipitated in sedimentation basin, the etch-proof stainless steel of low energy consumption are inhaled
Dredge pump is extracted out, and moisture content is reduced to 50% hereinafter, being then delivered to micro- fertile workshop manufacture microelement life after the sludge press filtration of extraction
Object humic acid organic fertilizer material is got a profit into market sale.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, every processing 1
Ton sewage consumes≤0.1 degree of electricity.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, electrolytic cell
Structure include: sink, electrode bar, sewage water inlet pipe, inlet distribution device, air blower or aerator, air intake duct and sky
Gas dispenser, electrode bar are mounted at the inner peripheral wall along sink, form the pattern of inside and outside two circle, the electrode bar and electricity of outer ring
The cathode in source is connected, and the electrode bar of inner ring is connected with the anode of power supply, and positive and negative electrode stick respectively connects, and is not in contact with each other mutually absolutely
Edge, air intake duct are connected to air blower or aerator, and are connected at the air dispersers of bottom of electrolytic tank, in sewage transport
In process, by the inlet distribution device of bottom of electrolytic tank, then plus aeration stirring, plug-flow so that sewage does not stop to turn in a cell
Rise continuous flowing；It is equipped with overflow weir in the edge of electrolytic cell upper end, is connected with outlet pipe in overflow weir, outlet pipe is connected to heavy
In the pond of shallow lake.
Embodiment 2
A kind of method that urban wastewater treatment and resource recycling utilize, comprises the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting slagging-off to sewage
Processing, and be 8 with neutralizing regulator milk of lime to adjust the pH of sewage, so that the SS value of sewage is reduced to 50mg/L hereinafter, then, making
Sewage is injected into collecting tank with high-performance, low energy consumption etch-proof horizontal stainless steel sewage pump, constantly injects, lay in collecting tank
Sewage, the continuous overflow of upper liquid after water is full and go out, the sewage overflowed flows into sewage water inlet pipe, and sewage water inlet pipe connection is electric
The inlet distribution device for solving trench bottom, makes sewage constantly be injected into the bottom of electrolytic cell from top to down and flow to by inlet distribution device
Each place of bottom of electrolytic tank；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower,
In transport flow, sewage natural generate impulse force, then plus aeration stirring, plug-flow, just constantly seethe continuous flowing in a cell；Electricity
Electrode is installed in solution slot, electrode connects positive and negative polarities DC power supply respectively, and the voltage between two pole plates is 10V, in electrolytic cell
Anode electrode material be mild steel or the metal anode containing precious metal ruthenium coating, the electrode material of cathode is low-carbon
Steel；It opens DC power supply and continuous electrochemical processing is carried out to sewage, the mean residence time of sewage in a cell is 40 minutes,
Sewage is constantly entered in electrolytic cell by sewage water inlet pipe, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then continuously
Continuous overflow and go out to inject in sedimentation basin by overflow weir through outlet pipe and staticly settle；It is acted on by Electrode Field in electrolytic cell,
Collect chemical substance existing for the electrode reactions integrated applications such as light electrolysis, electrolysis-coagulation, catalysis oxidation, absorption and sewage Central Plains
Occur the strong oxidizer that constantly generates of chemical reaction for example elemental oxygen, ozone, dissolved oxygen, chlorine, chlorine dioxide, hydrogen peroxide and
Permanganate etc., chain rupture open loop, thaumatropy, forced degradation, advanced treating broken to pollutant progress molecule, water and slag are fast
Speed separation, water purify rapidly clarification, the rapid Precipitation of slag；
(3) precipitation process and resource utilization: sewage after electrochemical treatments flows into sedimentation basin, the water and residual in sedimentation basin
Slag is rapidly separated precipitating, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water
Reservoir is transported to user to water supply network, the sludge high-performance that is precipitated in sedimentation basin, the etch-proof engineering plastics of low energy consumption
Dredge pump is extracted out, and moisture content is reduced to 50% and makees fertilizer hereinafter, then transporting to fertilizer plant after the sludge press filtration of extraction.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, every processing 1
Ton sewage consumes≤0.1 degree of electricity.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, electrolytic cell
Structure include: sink, electrode bar, sewage water inlet pipe, inlet distribution device, air blower or aerator, air intake duct and sky
Gas dispenser, electrode bar are mounted at the inner peripheral wall along sink, form the pattern of inside and outside two circle, the electrode bar and electricity of outer ring
The cathode in source is connected, and the electrode bar of inner ring is connected with the anode of power supply, and positive and negative electrode stick respectively connects, and is not in contact with each other mutually absolutely
Edge, air intake duct are connected to air blower or aerator, and are connected at the air dispersers of bottom of electrolytic tank, in sewage transport
In process, by the inlet distribution device of bottom of electrolytic tank, then plus aeration stirring, plug-flow so that sewage does not stop to turn in a cell
Rise continuous flowing；It is equipped with overflow weir in the edge of electrolytic cell upper end, is connected with outlet pipe in overflow weir, outlet pipe is connected to heavy
In the pond of shallow lake.
Embodiment 3
A kind of method that urban wastewater treatment and resource recycling utilize, comprises the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting slagging-off to sewage
Processing, and be 8.5 with neutralizing regulator sodium hydroxide to adjust the pH of sewage, so that the SS value of sewage is reduced to 50mg/L hereinafter, so
Afterwards, sewage is injected into collecting tank using high-performance, low energy consumption etch-proof engineering plastics sewage pump, constantly injected in collecting tank,
The sewage of deposit, water are expired the rear continuous overflow of upper liquid and are gone out, and the sewage overflowed flows into sewage water inlet pipe, and sewage water inlet pipe connects
The inlet distribution device for connecing bottom of electrolytic tank makes sewage constantly be injected into the bottom of electrolytic cell from top to down and by inlet distribution device
Flow to each place of bottom of electrolytic tank；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower,
In transport flow, sewage natural generate impulse force, then plus aeration stirring, plug-flow, just constantly seethe continuous flowing in a cell；Electricity
Electrode is installed in solution slot, electrode connects positive and negative polarities DC power supply respectively, and the voltage between two pole plates is 45V, in electrolytic cell
Anode electrode material be the metal anode containing precious metal platinum coating, the electrode material of cathode is mild steel；It opens
DC power supply carries out continuous electrochemical processing to sewage, and the mean residence time of sewage in a cell is 30 minutes, and sewage is logical
It crosses sewage water inlet pipe constantly to enter in electrolytic cell, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then successively overflows
It flows and goes out through overflow weir through being staticly settled in outlet pipe injection sedimentation basin；It is acted on by Electrode Field in electrolytic cell, collects micro- electricity
Chemical substance existing for the integrated application of the electrode reactions such as solution, electrolysis-coagulation, catalysis oxidation, absorption and sewage Central Plains
Learn strong oxidizer such as elemental oxygen, ozone, dissolved oxygen, chlorine, chlorine dioxide, hydrogen peroxide and permanganic acid that reaction constantly generates
Salt etc., chain rupture open loop, thaumatropy, forced degradation, advanced treating broken to pollutant progress molecule, water and slag are rapidly separated,
Water purifies rapidly clarification, the rapid Precipitation of slag；
(3) precipitation process and resource utilization: sewage after electrochemical treatments flows into sedimentation basin, the water and residual in sedimentation basin
Slag is rapidly separated precipitating, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water
Reservoir is transported to user to water supply network, the sludge high-performance that is precipitated in sedimentation basin, the etch-proof stainless steel of low energy consumption or
Engineering plastics dredge pump is extracted out, and moisture content is reduced to 50% hereinafter, being then delivered to micro- fertile workshop manufacture after the sludge press filtration of extraction
Microelement biological humic organic fertilizer, or fortune go fertilizer plant to make fertilizer.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, every processing 1
Ton sewage consumes≤0.1 degree of electricity.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, electrolytic cell
Structure include: sink, electrode bar, sewage water inlet pipe, inlet distribution device, air blower or aerator, air intake duct and sky
Gas dispenser, electrode bar are mounted at the inner peripheral wall along sink, form the pattern of inside and outside two circle, the electrode bar and electricity of outer ring
The cathode in source is connected, and the electrode bar of inner ring is connected with the anode of power supply, and positive and negative electrode stick respectively connects, and is not in contact with each other mutually absolutely
Edge, air intake duct are connected to air blower or aerator, and are connected at the air dispersers of bottom of electrolytic tank, in sewage transport
In process, by the inlet distribution device of bottom of electrolytic tank, then plus aeration stirring, plug-flow so that sewage does not stop to turn in a cell
Rise continuous flowing；It is equipped with overflow weir in the edge of electrolytic cell upper end, is connected with outlet pipe in overflow weir, outlet pipe is connected to heavy
In the pond of shallow lake.
Embodiment 4
A kind of method that urban wastewater treatment and resource recycling utilize, comprises the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting slagging-off to sewage
Processing, and be 9 with neutralizing regulator sodium hydroxide to adjust the pH of sewage, makes the SS value of sewage be reduced to 50mg/L hereinafter, then,
Sewage overflow is set to inject collecting tank using height fall, the sewage for constantly injecting, laying in collecting tank, upper liquid is continuous after water is full
Overflow and go out, the sewage that overflows flows into sewage water inlet pipe, and sewage water inlet pipe connects the inlet distribution device of bottom of electrolytic tank, makes
Sewage is constantly injected into the bottom of electrolytic cell from top to down and flows to each place of bottom of electrolytic tank by inlet distribution device；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower,
In transport flow, sewage natural generate impulse force, then plus aeration stirring, plug-flow, just constantly seethe continuous flowing in a cell；Electricity
Electrode is installed in solution slot, electrode connects positive and negative polarities DC power supply respectively, and the voltage between two pole plates is 60V, in electrolytic cell
Anode electrode material be coated with TiO2-RuO2 The titanium-base anode of coating, the electrode material of cathode are mild steel；It opens
DC power supply carries out continuous electrochemical processing to sewage, and the mean residence time of sewage in a cell is 25 minutes, and sewage is logical
It crosses sewage water inlet pipe constantly to enter in electrolytic cell, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then successively overflows
It flows and goes out through overflow weir through being staticly settled in outlet pipe injection sedimentation basin；It is acted on by Electrode Field in electrolytic cell, collects micro- electricity
Chemical substance existing for the integrated application of the electrode reactions such as solution, electrolysis-coagulation, catalysis oxidation, absorption and sewage Central Plains
Learn strong oxidizer such as elemental oxygen, ozone, dissolved oxygen, chlorine, chlorine dioxide, hydrogen peroxide and permanganic acid that reaction constantly generates
Salt etc., chain rupture open loop, thaumatropy, forced degradation, advanced treating broken to pollutant progress molecule, water and slag are rapidly separated,
Water purifies rapidly clarification, the rapid Precipitation of slag；
(3) precipitation process and resource utilization: sewage after electrochemical treatments flows into sedimentation basin, the water and residual in sedimentation basin
Slag is rapidly separated precipitating, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water
Reservoir is transported to user to water supply network, and the sludge high-performance that is precipitated in sedimentation basin, the etch-proof stainless steel of low energy consumption are inhaled
Dredge pump is extracted out, and moisture content is reduced to 50% hereinafter, being then delivered to micro- fertile workshop manufacture microelement life after the sludge press filtration of extraction
Object humic acid organic fertilizer material is got a profit into market sale.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, every processing 1
Ton sewage consumes≤0.1 degree of electricity.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, electrolytic cell
Structure include: sink, electrode bar, sewage water inlet pipe, inlet distribution device, air blower or aerator, air intake duct and sky
Gas dispenser, electrode bar are mounted at the inner peripheral wall along sink, form the pattern of inside and outside two circle, the electrode bar and electricity of outer ring
The cathode in source is connected, and the electrode bar of inner ring is connected with the anode of power supply, and positive and negative electrode stick respectively connects, and is not in contact with each other mutually absolutely
Edge, air intake duct are connected to air blower or aerator, and are connected at the air dispersers of bottom of electrolytic tank, in sewage transport
In process, by the inlet distribution device of bottom of electrolytic tank, then plus aeration stirring, plug-flow so that sewage does not stop to turn in a cell
Rise continuous flowing；It is equipped with overflow weir in the edge of electrolytic cell upper end, is connected with outlet pipe in overflow weir, outlet pipe is connected to heavy
In the pond of shallow lake.
Embodiment 5
A kind of method that urban wastewater treatment and resource recycling utilize, comprises the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting slagging-off to sewage
Processing, and with neutralize regulator sulfuric acid or hydrochloric acid adjusting sewage pH be 7.5-8, make the SS value of sewage be reduced to 50mg/L with
Under, then, sewage is injected into collecting tank using high-performance, low energy consumption etch-proof horizontal stainless steel sewage pump, in collecting tank not
Disconnected injection, deposit sewage, the continuous overflow of upper liquid after water is full and go out, the sewage inflow sewage water inlet pipe overflowed, sewage
Water inlet pipe connect bottom of electrolytic tank inlet distribution device, make sewage be constantly injected into from top to down electrolytic cell bottom and by into
Water distributor flows to each place of bottom of electrolytic tank；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower,
In transport flow, sewage natural generate impulse force, then plus aeration stirring, plug-flow, just constantly seethe continuous flowing in a cell；Electricity
Electrode is installed in solution slot, electrode connects positive and negative polarities DC power supply respectively, and the voltage between two pole plates is 110V, in electrolytic cell
The electrode material of anode contain the metal anodes of precious metal platinum, ruthenium, palladium, iridium or rhodium coatings, the electrode material of cathode be for
Mild steel opens DC power supply and carries out continuous electrochemical processing to sewage, and the mean residence time of sewage in a cell is 15
Minute, sewage is constantly entered in electrolytic cell by sewage water inlet pipe, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then
Successive overflow and go out to inject in sedimentation basin by overflow weir through outlet pipe and staticly settle；Made by Electrode Field in electrolytic cell
With chemicals existing for the electrode reactions integrated application such as collection light electrolysis, electrolysis-coagulation, catalysis oxidation, absorption and sewage Central Plains
Strong oxidizer such as elemental oxygen, ozone, dissolved oxygen, chlorine, chlorine dioxide, the hydrogen peroxide that chemical reaction constantly generates occur for matter
With permanganate etc., carry out that molecule is broken, chain rupture open loop, thaumatropy, forced degradation, advanced treating to pollutant, water and slag
It is rapidly separated, water purifies rapidly clarification, the rapid Precipitation of slag；
(3) precipitation process and resource utilization: sewage after electrochemical treatments flows into sedimentation basin, the water and residual in sedimentation basin
Slag is rapidly separated precipitating, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water
Reservoir is transported to user to water supply network, the sludge high-performance that is precipitated in sedimentation basin, the etch-proof stainless steel of low energy consumption or
Engineering plastics dredge pump is extracted out, and moisture content is reduced to 50% hereinafter, being then delivered to micro- fertile workshop manufacture after the sludge press filtration of extraction
Microelement biological humic organic fertilizer is got a profit into market sale, or fortune goes fertilizer plant to make fertilizer.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, every processing 1
Ton sewage consumes≤0.1 degree of electricity.
The method that above-mentioned urban wastewater treatment and resource recycling utilizes, in step (2) electrochemical treatments, electrolytic cell
Structure include: sink, electrode bar, sewage water inlet pipe, inlet distribution device, air blower or aerator, air intake duct and sky
Gas dispenser, electrode bar are mounted at the inner peripheral wall along sink, form the pattern of inside and outside two circle, the electrode bar and electricity of outer ring
The cathode in source is connected, and the electrode bar of inner ring is connected with the anode of power supply, and positive and negative electrode stick respectively connects, and is not in contact with each other mutually absolutely
Edge, air intake duct are connected to air blower or aerator, and are connected at the air dispersers of bottom of electrolytic tank, in sewage transport
In process, by the inlet distribution device of bottom of electrolytic tank, then plus aeration stirring, plug-flow so that sewage does not stop to turn in a cell
Rise continuous flowing；It is equipped with overflow weir in the edge of electrolytic cell upper end, is connected with outlet pipe in overflow weir, outlet pipe is connected to heavy
In the pond of shallow lake.
Wastewater treatment efficiency
It is detected to the discharge water outlet that processing sewage obtains is carried out using method of the invention, testing result are as follows: through locating
The water quality of water is given off after reason better than urban wastewater treatment firm specified in " integrated wastewater discharge standard " (GB18918-2002)
The primary standard for handling discharge, reaches the index of recycle-water, shown in table specific as follows:
It is above-mentioned as it can be seen that using urban wastewater treatment of the present invention and resource recycling using method sewage is handled,
The water quality of obtained water outlet has been better than discharge standard specified in " integrated wastewater discharge standard " (GB18918-2002), reaches back
With the index of water.
Claims (1)
1. a kind of method that urban wastewater treatment and resource recycling utilize, which is characterized in that comprise the technical steps that:
(1) sewage disinfection treatment, city planting ductwork is by the municipal sewage of dispersion, after converging liquid collecting, carries out sand setting to sewage and removes Slag treatment,
And adjusting the pH of sewage with neutralization regulator is 7.5-9, and the SS value of sewage is made to be reduced to 50mg/L hereinafter, being then injected into collecting tank
In, sewage in collecting tank flows into sewage water inlet pipe, and sewage water inlet pipe connects the inlet distribution device of bottom of electrolytic tank, make sewage from
It is above lower to be constantly injected into the bottom of electrolytic cell and flow to each place of bottom of electrolytic tank by inlet distribution device；
(2) electrochemical treatments, pretreated sewage enter electrolytic cell, and electrolytic cell is connected with aerator or air blower, electrolytic cell
In electrode is installed, electrode connects positive and negative polarities DC power supply respectively, the voltage between two pole plates be 5~110V, open direct current
Power supply carries out continuous electrochemical processing to sewage, and the mean residence time of sewage in a cell is 15-60 minutes, and sewage passes through
Sewage water inlet pipe constantly enters in electrolytic cell, the supernatant liquor in electrolytic cell Jing Guo electrochemical treatments, then successive overflow
And go out to inject in sedimentation basin by overflow weir through outlet pipe and staticly settle,
(3) precipitation process and resource utilization: the sewage after electrochemical treatments flows into sedimentation basin, and water and residue are fast in sedimentation basin
Fast precipitation and separation, Water warfare clarification, mode of the net liquid of sedimentation basin at the middle and upper levels also by overflow, successive injected clear water storage
Pond is transported to user to water supply network, and the sludge being precipitated in sedimentation basin is extracted out with dredge pump, defeated after the sludge press filtration of extraction
It is sent to micro- fertile workshop or fertilizer plant makees fertilizer；
Neutralization regulator as described in step (1) is sodium carbonate, sodium hydroxide, milk of lime, sulfuric acid or hydrochloric acid；
In step (1), by the mode of sewage injection collecting tank are as follows: so that sewage overflow is injected collecting tank using height fall, or make
Sewage is injected in collecting tank with sewage pump；
In step (2) electrochemical treatments, the electrode material of the anodes in electrolytic cells is mild steel, graphite, contains precious metal
Platinum, ruthenium, palladium, iridium or rhodium coatings metal anode and be coated with TiO2-RuO2 One of titanium-base anode of coating, cathode
Electrode material is mild steel；
In step (3) resource utilization, moisture content is reduced to 50% or less after the sludge press filtration of Precipitation；
In step (2) electrochemical treatments, the structure of electrolytic cell includes: sink, electrode bar, sewage water inlet pipe, inlet distribution device, drum
Blower or aerator, air intake duct and air dispersers, electrode bar is mounted at the inner peripheral wall along sink, in formation
The pattern of outer two circle, the electrode bar of outer ring are connected with the cathode of power supply, and the electrode bar of inner ring is connected with the anode of power supply, positive negative electricity
Pole stick respectively connects, and be not in contact with each other mutually insulated, and air intake duct is connected to air blower or aerator, and is connected at electrolytic cell
The air dispersers of bottom are equipped with overflow weir in the edge of electrolytic cell upper end, outlet pipe are connected in overflow weir, outlet pipe connects
It is connected in sedimentation basin.
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| CN107827210B (en) * | 2017-12-04 | 2024-03-26 | 广东绿园环保科技有限公司 | Sewage treatment method based on plate-frame type filter pressing electrolysis integrated special sewage treatment equipment |
| CN108261867A (en) * | 2018-01-25 | 2018-07-10 | 深圳汇呈环保科技有限公司 | A kind of industrial dedusting device |
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