CN107162344A - A kind of sewage water treatment method - Google Patents
A kind of sewage water treatment method Download PDFInfo
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- CN107162344A CN107162344A CN201710532294.6A CN201710532294A CN107162344A CN 107162344 A CN107162344 A CN 107162344A CN 201710532294 A CN201710532294 A CN 201710532294A CN 107162344 A CN107162344 A CN 107162344A
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- Prior art keywords
- evaporation
- sewage
- ice
- treatment method
- water treatment
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- 239000010865 sewage Substances 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001704 evaporation Methods 0.000 claims abstract description 61
- 230000008020 evaporation Effects 0.000 claims abstract description 57
- 238000004062 sedimentation Methods 0.000 claims abstract description 11
- 229920001661 Chitosan Polymers 0.000 claims description 25
- 238000000855 fermentation Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- 239000008346 aqueous phase Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000004151 fermentation Effects 0.000 claims description 4
- 230000003311 flocculating effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000007790 solid phase Substances 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical group [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- 150000001450 anions Chemical class 0.000 claims description 2
- 230000002070 germicidal effect Effects 0.000 claims description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 239000010881 fly ash Substances 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 230000003211 malignant effect Effects 0.000 description 3
- 230000002906 microbiologic effect Effects 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- BHQCQFFYRZLCQQ-UHFFFAOYSA-N (3alpha,5alpha,7alpha,12alpha)-3,7,12-trihydroxy-cholan-24-oic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 BHQCQFFYRZLCQQ-UHFFFAOYSA-N 0.000 description 1
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004380 Cholic acid Substances 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003463 adsorbent Substances 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
- 125000003368 amide group Chemical group 0.000 description 1
- -1 amino, hydroxyl Chemical group 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- BHQCQFFYRZLCQQ-OELDTZBJSA-N cholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 BHQCQFFYRZLCQQ-OELDTZBJSA-N 0.000 description 1
- 229960002471 cholic acid Drugs 0.000 description 1
- 235000019416 cholic acid Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- KXGVEGMKQFWNSR-UHFFFAOYSA-N deoxycholic acid Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 KXGVEGMKQFWNSR-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
-
- 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
- C02F3/28—Anaerobic digestion processes
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of sewage water treatment method, this method handles sewage using sedimentation evaporation, technological process is simple, equipment investment is few, sewage is converted into chilled use ice, organic matter in sewage is converted into biogas, being truly realized turns waste into wealth, and improves economic benefit, reduces the cost of sewage disposal；It is used to generate electricity by the heat exchange in system and by self-produced biogas, reduces energy consumption, improves efficiency of energy utilization, with great economic benefit.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of sewage water treatment method.
Background technology
Wastewater treatment in China is faced with water pollution seriously, and waste water control starting is late, basis is poor, require high situation.It is near
Year, the construction of municipal sewage treatment has to develop on a large scale very much, by by the end of June, 2005, and national 661 the planned cities are had at sewage
708, factory is managed, disposal ability is 4 912 ten thousand steres/d, is 2000 more than twice；Annual municipal sewage treatment amount 162.8
Billion cubic meter, added 43% than 2000, and treatment rate of domestic sewage is up to 45.7%.But the sewage disposal energy of most cities
Power, which can not meet, to be actually needed, and the whole nation also has 297 cities not build up sewage treatment plant, wherein, 63, region above city,
8, big city including population more than 500,000；54, city in the range of major river valley, the region Tenth Five-year plan.The whole nation 5
More than ten thousand cities and towns, more than 370 ten thousand villages, there is no sewage treatment facility to inhabitants live more than 900,000,000.
Sewage is mainly the various detergent used in urban life and sewage, rubbish, excrement etc., and mostly nontoxic is inorganic
Many containing nitrogen phosphate and sulfur in salt, sewage, malignant bacteria is more.Sewage is also simultaneously low-temperature heat source and methane occurring source, even more distant view
Liquefied oil gas field.Contain large amount of organic, such as cellulose, starch, carbohydrate and fat protein in sewage；Also cause of disease is often contained
Bacterium, virus and parasitic ovum；Chloride, sulfate, phosphate, bicarbonate and the sodium of inorganic salts, potassium, calcium, magnesium etc..Sewage
Measure as 150-400L, its amount has substantial connection with living standard.High hardness, especially permanent hardness Gao Shui harm is shown as
It is many-sided：It is tasty；Disorderly digestive tract function, diarrhoea, pregnant domestic animal miscarriage can be caused；To the daily inconvenience of people；Big energy-consuming；Influence water
Kettle, boiler life；Boiler feed water fouling, easily causes blast；Need to be softened, purification process, acid, alkali, salt are lost in environment
Ground water hardness can be caused to raise again, form vicious circle.
For a long time, what China's municipal sewage treatment facility was taken is free Distursement, and not only enlarged reproduction is by wealth
Political affairs are invested, and simple reproduction, which is also required to financial allocation, to be completed, and therefore financial allocation is safeguarded into sewage treatment facility and built
The exclusive source of investment so that my sewage disposal receives the restriction of fund.However, the place to municipal sewage in the prior art
Reason equipment investment is larger, and operating cost is too high, and a kind of new sewage disposal system of design is needed for this, can be comprehensive gram
Take the deficiency that above-mentioned sewage disposal system of the prior art is present.
The content of the invention
The present invention seeks in view of the shortcomings of the prior art there is provided a kind of sewage water treatment method, with equipment investment is few, warp
The characteristics of income of helping is high, there is extensive market prospects in application popularization.
A kind of sewage water treatment method that the present invention is provided, comprises the following steps：
1) treatment sewage is imported into evaporation subsider, agent feeding device adds flocculant by flocculating, and is sufficiently stirred for simultaneously
Natural evaporation is carried out, charging enters sedimentation evaporation stage, sewage detected using detector, when measured value reaches setting value after finishing
When, into the forced evaporation stage, the evaporation subsider top is used to collect natural evaporation, sunk provided with steam condensate collection device
Drop evaporation and the steam in forced evaporation stage；
2) the steam water of collection is imported into the first ice machine after osmosis membrane filters, gathers ice powder, the ice powder can conduct
Chilled ice commodity；
3) raffinate after evaporating imports methane-generating pit and carries out anaerobic fermentation, the biogas produced by collecting, fermentation ends after fermentation
Raffinate, which carries out separation of solid and liquid, turns into bottom solid phase and above-mentioned aqueous phase, and the solid phase is discharged as discarded object, and the aqueous phase is led
Enter the second ice machine, in the second ice machine top extraction ice powder bottom discharge waste water, the ice powder can be used as chilled ice business
Product, the waste water is handled through vapour condensation device heat exchange Posterior circle to subsider is evaporated.
The forced evaporation stage is to be carried out using the evaporation equipment being arranged on below sedimentation evaporation tank sewage level artificial
Heating evaporation；The origin of heat of the evaporation is preferably comprised from the thermal source produced by ice maker interchanger：Interchanger can be radiated
Device is set directly inside evaporation subsider, makes it as a part for evaporation equipment, can also be connected and handed over by heat-exchanger rig
Change planes radiator and evaporation equipment.
The source of the evaporation equipment can also be the burning of self-produced biogas.
For the situation more than malignant bacteria in sanitary sewage, rely solely in the steam obtained by the operation of sedimentation and evaporation
Sometimes also there is malignant bacteria, thus be used for wet sterilization in the above-mentioned ultraviolet germicidal that is additionally provided with of the evaporation subsider.
The refrigerant of the steam condensate collection device preferably uses the low-temperature wastewater of the second ice machine bottom discharge.
It is further comprising the steps of in another embodiment of the present invention：By step 3) in collect biogas lead
Enter biogas generator, the biogas generator provides electric energy for ice machine, and the thermal wastewater of crossing of generation is used for evaporation equipment.
Flocculant of the present invention, has no particular limits, and can be inorganic flocculating agent, or organic flocculant.
The inorganic flocculating agent includes aluminum sulfate, aluminium chloride, ferric sulfate, iron chloride etc., and the organic flocculant includes anion poly- third
Acrylamide, PAMC, non-ionic polyacrylamide, chitosan etc..
Treatment in accordance with the present invention process, if using can the organic macromolecule flocculant through microbial degradation, it can be direct
Degradable fermented in the microbiological treatment stage of anaerobic fermentation, the characteristics of will not bringing secondary pollution simultaneously adds methane content, very
Just realizing turns waste into wealth.
Chitosan (chitosan), which is also known as in chitosan, chitosan molecule, contains amide groups and amino, hydroxyl,
With the protonation of amino, the effect of cationic polyelectrolyte is shown, not only heavy metal has chelation, can also be effective
Negatively charged subparticle in ground flocculation adsorption water, chitosan is very strong to the flocculation of the organic matters such as protein, starch.Shell
One significant properties of glycan is adsorption capacity.The material of many low molecule amounts, such as metal ion, cholesterol, triglycerides,
Cholic acid and organic mercury etc., can be adsorbed by chitosan.Particularly chitosan can not only adsorb magnesium, potassium, and can adsorb
Zinc, calcium, mercury and uranium.The adsorption activity of chitosan can selectively play a role.It is efficient chelating to have been demonstrated that chitosan
Thing medium.But chitosan being swelled in the solution also makes separation more difficult, need to add aluminum sulfate, aluminium polychloride etc., and finally
Flocculation and infall process it is whard to control.
For the application handling process the characteristics of and chitosan above-mentioned characteristic, method flocculant of the invention uses
A kind of modification of chitosan flocculant.Using flyash as carrier, by chitosan loaded in fine coal gray surface, the adsorbent can both be saved
Chitosan addition, makes lock out operation simple and easy to apply again, has the advantages that the rate of adsorption is fast, adsorption capacity is big, pollution-free.
The specific preparation method of the chitosan flocculant is：After lime stone is necessarily mixed in mass ratio with flyash,
High-temperature activation is carried out in Muffle furnace, is made through alkali modification flyash.By a certain amount of chitosan solution according to certain mass ratio
Example is gradually added into alkali modification flyash flyash, is stirred vigorously, and regulation makes pH=9, becomes to condense shape, then mixes slowly, water
Neutral, suction filtration is washed till, flyash modified chitosan is made in thermostatic drying chamber drying, grinding sieving.
Compared with prior art, beneficial effects of the present invention are as follows：
1) present invention handles sewage using sedimentation evaporation, and technological process is simple, equipment investment is few, and sewage is converted into ice
Organic matter in using fresh herb ice, sewage is converted into biogas, and being truly realized turns waste into wealth, and improves economic benefit, reduces dirt
The cost of water process.
2) present invention reduces energy consumption, improved also by the heat exchange in system and the generating and heating of self-produced biogas
Efficiency of energy utilization, with great economic benefit.
3) the characteristics of present invention is always according to for handling process of the present invention, the organic big of degraded is easy to using chitosan is this
Molecular compound have as flocculant it is nontoxic, and its can directly anaerobic fermentation the microbiological treatment stage degrade hair
Ferment, the characteristics of will not bringing secondary pollution simultaneously adds methane content, reduces the discharge of discarded object.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
【Embodiment 1】
1st, the synthesis of modification of chitosan flocculant
After 300kg lime stones are well mixed with 500Kg flyash on solid stirrer, it is put into Muffle furnace, 350
3h is activated at DEG C, is made through alkali modification flyash 780kg.200kg chitosans are configured to the aqueous solution that mass concentration is 20%,
Then above-mentioned alkali modification flyash 700kg is gradually added into, is stirred vigorously, pH to 9 is adjusted with quick lime, continues to stir until becoming
Shape is condensed, plate-frame filtering is washed to neutral, suction filtration, is put into thermostatic drying chamber, dried at 120 DEG C, then ground 200 mesh
Sieve, is made flyash modified chitosan 78kg.
2nd, the processing of sample sewage
Sample sanitary sewage water quality detection, COD is 3000mg/L, and total phosphorus is 2.93mg/L；Ammonia nitrogen is 20.39mg/L.
1) 20t samples sewage is imported into evaporation subsider, agent feeding device adds the flyash modified shells of 500kg by flocculating
Chitosan flocculant, is sufficiently stirred for and carries out natural evaporation, and subsequently into sedimentation evaporation stage, device detection sewage, works as COD after testing
When value reaches setting value, into the forced evaporation stage, using being arranged on evaporation equipment of the sedimentation evaporation tank below sewage level
Heat artificially evaporation is carried out, the evaporation subsider top is used for the steam for collecting evaporation provided with steam condensate collection device；
2) the steam water of collection is imported into ice-maker makes ice after membrane filtration, gathers the ice powder as chilled ice, altogether system
Ice powder 6t, wherein impurity content is very low after testing can be used as chilled using ice.
3) raffinate after evaporating imports methane-generating pit anaerobic fermentation, and collects produced biogas.Raffinate after evaporation is imported
Water of the treatment fluid of completion after separation of solid and liquid is handled in biogas produced by methane-generating pit anaerobic fermentation, and collection, methane-generating pit to enter
Enter the second ice machine, 1500kg solids are obtained altogether and are handled as discarded object discharge.In the above-mentioned extraction ice powder 8t of the second ice machine, warp
Detection wherein impurity content is very low to can be used as chilled use ice, and the second ice machine bottom waste water is imported after vapour condensation device heat exchange
It is recycled to evaporation subsider.
【Embodiment 2】
Sample sanitary sewage water quality detection, COD is 3000mg/L, and total phosphorus is 2.93mg/L；Ammonia nitrogen is 20.39mg/L.
1) 1t samples sewage is imported into evaporation subsider, agent feeding device adds 500kg ferric sulfate flocculants by flocculating,
It is sufficiently stirred for and carries out natural evaporation, subsequently into evaporation stage is settled, device detects sewage after testing, when COD value reaches setting
During value, into the forced evaporation stage, using evaporation equipment of the sedimentation evaporation tank below sewage level is arranged on manually add
Thermal evaporation, the evaporation subsider top is used for the steam for collecting evaporation provided with steam condensate collection device.
2) the steam water of collection is imported into ice-maker makes ice after membrane filtration, gathers the ice powder as chilled ice, altogether system
Ice powder 6t, wherein impurity content is very low after testing can be used as chilled using ice.
3) raffinate after evaporating imports methane-generating pit anaerobic fermentation, and collects produced biogas.Raffinate after evaporation is imported
Water of the treatment fluid of completion after separation of solid and liquid is handled in biogas produced by methane-generating pit anaerobic fermentation, and collection, methane-generating pit to enter
Enter the second ice machine, 1900kg solids are obtained altogether and are handled as discarded object discharge.In the above-mentioned extraction ice powder 8t of the second ice machine,
Two ice machine bottom waste water import vapour condensation devices and exchange heat Posterior circles to subsider is evaporated, and wherein impurity content is very after testing
It is low to can be used as chilled using ice.
The present invention handles sewage using sedimentation evaporation, and technological process is simple, equipment investment is few, sewage is converted into chilled
With ice, the organic matter in sewage is converted into biogas, and being truly realized turns waste into wealth, and improves economic benefit, reduces sewage
The cost of processing.By the heat exchange in system and the generating and heating of self-produced biogas, reduce energy consumption, improve using energy source
Efficiency, with great economic benefit.Had using this organic macromolecule compound for being easy to degraded of chitosan as flocculant
Have nontoxic, and it can be directly degradable fermented in the microbiological treatment stage of anaerobic fermentation, will not bring the spy of secondary pollution
Put and add methane content, reduce the discharge of discarded object.
Described above has fully disclosed the embodiment of the present invention.It is pointed out that being familiar with the field
Scope of any change that technical staff is done to the embodiment of the present invention all without departing from claims of the present invention.
Correspondingly, the scope of claim of the invention is also not limited only to previous embodiment.
Claims (7)
1. a kind of sewage water treatment method, comprises the following steps：
1) treatment sewage is imported into evaporation subsider, agent feeding device adds flocculant by flocculating, and is sufficiently stirred for and carries out
Natural evaporation, charging enters sedimentation evaporation stage after finishing, sewage is detected using detector, when measured value reaches setting value,
Into the forced evaporation stage, the evaporation subsider top is used to collect natural evaporation, sedimentation provided with steam condensate collection device
Evaporation and the steam in forced evaporation stage；
2) the steam water of collection is imported into the first ice machine after osmosis membrane filters, gathers ice powder, and as chilled ice business
Product；
3) raffinate after evaporating imports methane-generating pit and carries out anaerobic fermentation, the biogas produced by collecting, fermentation ends after fermentation raffinate
Carrying out separation of solid and liquid turns into bottom solid phase and above-mentioned aqueous phase, and the solid phase discharges as discarded object, and the aqueous phase imports the
Two ice machines, ice powder is produced on the second ice machine top, and bottom discharge waste water, the waste water exchanges heat through vapour condensation device
Posterior circle is handled to subsider is evaporated.
2. sewage water treatment method according to claim 1, it is characterised in that the flocculant is inorganic flocculating agent or organic
Flocculant；The inorganic flocculating agent is aluminum sulfate, aluminium chloride, ferric sulfate or iron chloride, and the organic flocculant is poly- for anion
Acrylamide, PAMC, non-ionic polyacrylamide or chitosan.
3. sewage water treatment method according to claim 1, it is characterised in that the forced evaporation stage is to use to be arranged on
Settle the evaporation equipment below evaporation tank sewage level and carry out Heat artificially evaporation.
4. sewage water treatment method according to claim 1, it is characterised in that the origin of heat of the evaporation equipment is comprising next
The heat produced by heat or self-produced biogas combustion produced by ice machine interchanger.
5. sewage water treatment method according to claim 1, it is characterised in that be additionally provided with the top of the evaporation subsider
Ultraviolet germicidal.
6. sewage water treatment method according to claim 1, it is characterised in that the refrigerant of the steam condensate collection device is excellent
The low-temperature wastewater that choosing is discharged using the second ice machine bottom.
7. sewage water treatment method according to claim 1, it is characterised in that by step 3) the middle biogas importing biogas collected
Generator, the biogas generator is that the first ice machine and the second ice machine provide electric energy, and the hot hot waste water of generation is used to steam
Send out the heating of equipment.
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