CN112939208A - Activated sludge culture method suitable for ethylene glycol wastewater biochemical treatment - Google Patents
Activated sludge culture method suitable for ethylene glycol wastewater biochemical treatment Download PDFInfo
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- CN112939208A CN112939208A CN202110138160.2A CN202110138160A CN112939208A CN 112939208 A CN112939208 A CN 112939208A CN 202110138160 A CN202110138160 A CN 202110138160A CN 112939208 A CN112939208 A CN 112939208A
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- ethylene glycol
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 239000010802 sludge Substances 0.000 title claims abstract description 33
- 239000002351 wastewater Substances 0.000 title claims abstract description 16
- 238000012136 culture method Methods 0.000 title claims abstract description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 235000015097 nutrients Nutrition 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 18
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 238000011081 inoculation Methods 0.000 claims abstract description 14
- 239000011259 mixed solution Substances 0.000 claims abstract description 10
- 239000010865 sewage Substances 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 3
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 244000005700 microbiome Species 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- ASTWEMOBIXQPPV-UHFFFAOYSA-K trisodium;phosphate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[O-]P([O-])([O-])=O ASTWEMOBIXQPPV-UHFFFAOYSA-K 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/36—Adaptation or attenuation of cells
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Zoology (AREA)
- Microbiology (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Water Supply & Treatment (AREA)
- Medicinal Chemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- Virology (AREA)
- Cell Biology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses an activated sludge culture method suitable for ethylene glycol wastewater biochemical treatment, which comprises the following culture steps: injecting clear water into the aerobic tank, and adding inoculated sludge and nutrient substances for inoculation; in the inoculation process, water inlet and outlet are stopped, and the adding amount of nutrient substances is adjusted according to the COD concentration; and after successful inoculation, opening water inlet and outlet, circulating the system, allowing the water outlet of the secondary sedimentation tank to enter the front section of the aerobic tank for acclimatization, and allowing the system to receive sewage after successful acclimatization. According to the invention, according to the characteristics of the microorganisms and the driving characteristics of the ethylene glycol device, the mixed solution of methanol and ethylene glycol is selected as the carbon source, the operation cost of methanol is low, the sludge production is small, the response time is short, the microorganisms can adapt to the water quality characteristics in advance by adding ethylene glycol, the domestication progress is accelerated, the microorganism inoculation and domestication time is greatly shortened, the adaptability of the successfully domesticated microorganisms to the ethylene glycol wastewater is strong, the impact resistance is strong, and the original driving smoothness of the ethylene glycol device is ensured.
Description
Technical Field
The invention belongs to the field of biochemical treatment of sewage, and particularly relates to an activated sludge culture method suitable for biochemical treatment of ethylene glycol wastewater.
Background
Ethylene glycol is an important organic chemical raw material, has wide application, can be used for producing polyester fibers, and can be used as an antifreezing agent, a lubricant, a plasticizer, a nonionic surfactant, explosives, a coating, ink and other fields. At present, three main process routes are available for producing ethylene glycol by using coal as a raw material in China. The first is a direct method: preparation of synthetic gas (CO + H) by coal gasification2) And then the ethylene glycol is directly synthesized from the synthesis gas in one step, the key point of the technology is the selection of the catalyst, and the industrialization is difficult to realize in a long period of time. Secondly, the coal-based methanol is used for preparing olefin (simultaneously producing ethylene and propylene), ethylene is oxidized to prepare ethylene oxide, and finally the ethylene oxide is hydrated to prepare ethylene glycol. Thirdly, preparing synthetic gas (CO + H) by coal gasification2) The process flow is short, the cost is low, the technology is the technology for preparing the ethylene glycol by coal which is most concerned at home at present, and the technology is generally called as the technology for preparing the ethylene glycol by coal.
The device for generating the ethylene glycol by hydrogenating the oxalate can generate a large amount of wastewater with high COD and high total nitrogen in a short time in the driving process, the treatment method is mainly an activated sludge method, glucose, starch, methanol and sodium acetate are usually used as carbon sources in the conventional activated sludge method, the microorganism inoculation culture domestication time is long, and the production requirement cannot be met.
Disclosure of Invention
Based on the technical current situation, the invention provides an activated sludge culture method suitable for the biochemical treatment of glycol wastewater.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an activated sludge culture method suitable for the biochemical treatment of glycol wastewater comprises the following steps:
step 1: injecting clear water into the aerobic tank to a certain water level;
step 2: inoculating sludge and nutrient substances are added into the aerobic tank, the target concentration of sludge inoculation is 1500-3000mg/L, the ratio of C to N to P in the nutrient substances is 100:5:1, and the initial concentration of COD is 300 mg/L;
and step 3: stopping water inlet and outlet, and performing blast aeration to keep dissolved oxygen DO at 0.5-1.5mg/L, controlling water temperature not lower than 15 deg.C and pH value at 6-9;
and 4, step 4: controlling the COD concentration of the aerobic tank, wherein the COD analysis frequency is 4 hours, 8 hours are taken as a period, and if the COD concentration in the first 4 hours in the period is lower than 150mg/L, the aeration is stopped; if the COD concentration in one period is lower than 100mg/L, adding nutrient substances to the initial concentration of 300mg/L until the sedimentation ratio SV of the aerobic tank30More than 10 percent, the inoculation is successful;
and 5: after inoculation is successful, water inlet and outlet are opened, the system starts to circulate, the water outlet of the secondary sedimentation tank enters the front section of the aerobic tank, and when the sedimentation ratio is SV30When the concentration is more than 10 percent, the nutrient substances are added according to the COD concentration of 600mg/L, and other control conditions are unchanged; when sedimentation ratio SV30When the concentration is more than 15 percent, adding nutrient substances according to the COD concentration of 1000 mg/L; when sedimentation ratio SV30If the concentration is more than 20%, the acclimation is successful, and the system begins to receive sewage.
Further, the inoculated sludge in the step 2 is derived from residual sludge of an actual municipal sewage treatment plant.
Further, the water content in the excess sludge is 80%.
Further, in the step 2, the nutrient substances are methanol/ethylene glycol mixed solution, urea and trisodium phosphate, the methanol/ethylene glycol mixed solution is a carbon source, the urea is a nitrogen source, and the trisodium phosphate is a phosphorus source.
Further, the volume ratio of the methanol/ethylene glycol mixed solution is 9: 1.
Further, the flow in the step 5 is controlled to be 10-30% of the designed total water inflow.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
according to the invention, the mixed liquid of methanol and glycol is reasonably selected as the carbon source according to the characteristics of the microorganism and the driving characteristics of the glycol device, the operation cost of methanol is low, the sludge production is small, the response time is short, the microorganism can adapt to the water quality characteristics in advance by adding glycol, the domestication progress is accelerated, the microorganism inoculation domestication time is greatly shortened, the adaptability of the successfully domesticated microorganism to glycol wastewater is strong, the impact resistance is strong, and the original driving smoothness of the glycol device is ensured.
According to the invention, the mixed solution of methanol and glycol is used to replace glucose, and the inoculated sludge is diluted and pumped, so that the cost of manpower and material resources is reduced. The originally planned glucose usage is 100 tons, and the unit price is about 2800 yuan/ton, and 28 ten thousand yuan in total. The mixed solution of 90 percent methanol and 10 percent crude glycol is used at present, the unit price of the mixed solution is about 500 yuan/ton, and 23 ten thousand yuan can be saved in total.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The embodiments are implemented on the premise of the technical scheme of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
Examples
An activated sludge culture method suitable for the biochemical treatment of glycol wastewater comprises the following steps:
step 1: clear water of 2400m is injected into the aerobic tank3Design water inflow of 100m3Design residence time 24 h:
step 2: adding excess sludge with water content of 80% in the day of a municipal sewage treatment plant according to the dry sludge content of 3000mg/L, inoculating 36 tons of sludge in an aerobic tank, and adding the sludge in an amount of 7.2 tons after dilution and stirring in a pumping mode; adding nutrient substances according to the relation that C, N and P are 100:5:1, wherein the COD initial concentration of the aerobic tank is 300mg/L, and the conversion of the carbon source and the COD is 1: 1.5, the initial adding mass of the mixed solution of 90 percent of methanol and 10 percent of glycol is 480 Kg; the initial adding mass of urea is 77480Kg with 46.7 percent conversion of nitrogen source; the initial adding mass of trisodium phosphate dodecahydrate is 89Kg according to 8.1 percent of phosphorus source;
and step 3: stopping water inlet and outlet, and performing blast aeration to keep dissolved oxygen DO at 0.5-1.5mg/L, controlling water temperature not lower than 15 deg.C and pH value at 6-9;
and 4, step 4: controlling the COD concentration of the aerobic tank, wherein the COD analysis frequency is 4 hours, 8 hours are taken as a period, and if the COD concentration in the first 4 hours in the period is lower than 150mg/L, the aeration is stopped; if the COD concentration in one period is lower than 100mg/L, adding nutrient substances to the initial concentration of 300mg/L until the sedimentation ratio SV of the aerobic tank30More than 10 percent, the inoculation is successful;
and 5: after inoculation is successful, water inlet and outlet are opened, the system starts to circulate, the outlet water of the secondary sedimentation tank enters the front section of the aerobic tank, the flow is controlled to be 10-30% of the designed total water inflow, and when the sedimentation ratio SV is30When the concentration is more than 10 percent, the nutrient substances are added according to the COD concentration of 600mg/L, and other control conditions are unchanged; when sedimentation ratio SV30When the concentration is more than 15 percent, adding nutrient substances according to the COD concentration of 1000 mg/L; when sedimentation ratio SV30When the water inflow is more than 20%, the acclimation is successful, the system can start to receive the sewage, and the flow control is gradually increased according to 10% -20% of the designed total water inflow.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An activated sludge culture method suitable for biochemical treatment of ethylene glycol wastewater is characterized by comprising the following steps:
step 1: injecting clear water into the aerobic tank to a certain water level;
step 2: inoculating sludge and nutrient substances are added into the aerobic tank, the target concentration of sludge inoculation is 1500-3000mg/L, the ratio of C to N to P in the nutrient substances is 100:5:1, and the initial concentration of COD is 300 mg/L;
and step 3: stopping water inlet and outlet, and performing blast aeration to keep dissolved oxygen DO at 0.5-1.5mg/L, controlling water temperature not lower than 15 deg.C and pH value at 6-9;
and 4, step 4: controlling the COD concentration of the aerobic tank, wherein the COD analysis frequency is 4 hours, 8 hours are taken as a period, and if the COD concentration in the first 4 hours in the period is lower than 150mg/L, the aeration is stopped; if the COD concentration in one period is lower than 100mg/L, adding nutrient substances to the initial concentration of 300mg/L until the sedimentation ratio SV of the aerobic tank30More than 10 percent, the inoculation is successful;
and 5: after inoculation is successful, water inlet and outlet are opened, the system starts to circulate, the water outlet of the secondary sedimentation tank enters the front section of the aerobic tank, and when the sedimentation ratio is SV30When the concentration is more than 10 percent, the nutrient substances are added according to the COD concentration of 600mg/L, and other control conditions are unchanged; when sedimentation ratio SV30When the concentration is more than 15 percent, adding nutrient substances according to the COD concentration of 1000 mg/L; when sedimentation ratio SV30If the concentration is more than 20%, the acclimation is successful, and the system begins to receive sewage.
2. The activated sludge culture method suitable for the biochemical treatment of the ethylene glycol wastewater as claimed in claim 1, wherein: the inoculated sludge in the step 2 is derived from residual sludge of an actual municipal sewage treatment plant.
3. The activated sludge culture method suitable for the biochemical treatment of the ethylene glycol wastewater as claimed in claim 2, characterized in that: the water content in the excess sludge is 80%.
4. The activated sludge culture method suitable for the biochemical treatment of the ethylene glycol wastewater as claimed in claim 1, wherein: and the nutrient substances in the step 2 are methanol/ethylene glycol mixed solution, urea and trisodium phosphate.
5. The activated sludge culture method suitable for the biochemical treatment of the ethylene glycol wastewater as claimed in claim 4, wherein: the volume ratio of the methanol/ethylene glycol mixed solution is 9: 1.
6. The activated sludge culture method suitable for the biochemical treatment of the ethylene glycol wastewater as claimed in claim 1, wherein: and in the step 5, the flow is controlled to be 10-30% of the designed total water inflow.
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|---|---|---|---|
| CN202110138160.2A CN112939208A (en) | 2021-02-01 | 2021-02-01 | Activated sludge culture method suitable for ethylene glycol wastewater biochemical treatment |
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| CN202110138160.2A CN112939208A (en) | 2021-02-01 | 2021-02-01 | Activated sludge culture method suitable for ethylene glycol wastewater biochemical treatment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136997A (en) * | 1981-02-18 | 1982-08-24 | Hitachi Zosen Corp | Method for purification of polluted sea water |
| CN87100664A (en) * | 1986-01-09 | 1987-08-26 | 伏尔加—乌拉尔含硫化氢天然气开采和加工科研设计院 | Biological purification of waste water is removed the method for ethylene glycol |
| JPH10314789A (en) * | 1997-05-21 | 1998-12-02 | Toyota Central Res & Dev Lab Inc | Ethylene glycol-containing water treatment method and microorganism |
| JP2001205291A (en) * | 2000-01-25 | 2001-07-31 | Ataka Construction & Engineering Co Ltd | Method for treating wastewater containing polyethylene glycol |
| CN109775855A (en) * | 2019-03-19 | 2019-05-21 | 中海油山西能源投资有限责任公司 | It is a kind of handle broken coal gasification waste water activated sludge and its culture acclimation method and application |
-
2021
- 2021-02-01 CN CN202110138160.2A patent/CN112939208A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136997A (en) * | 1981-02-18 | 1982-08-24 | Hitachi Zosen Corp | Method for purification of polluted sea water |
| CN87100664A (en) * | 1986-01-09 | 1987-08-26 | 伏尔加—乌拉尔含硫化氢天然气开采和加工科研设计院 | Biological purification of waste water is removed the method for ethylene glycol |
| JPH10314789A (en) * | 1997-05-21 | 1998-12-02 | Toyota Central Res & Dev Lab Inc | Ethylene glycol-containing water treatment method and microorganism |
| JP2001205291A (en) * | 2000-01-25 | 2001-07-31 | Ataka Construction & Engineering Co Ltd | Method for treating wastewater containing polyethylene glycol |
| CN109775855A (en) * | 2019-03-19 | 2019-05-21 | 中海油山西能源投资有限责任公司 | It is a kind of handle broken coal gasification waste water activated sludge and its culture acclimation method and application |
Non-Patent Citations (3)
| Title |
|---|
| 李丽姣: "含乙二醇气田水生化处理研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
| 林稚兰等: "应用生物降解处理石油化工废水", 《环境化学》 * |
| 钟琼: "《废水处理技术及设施运行》", 31 May 2008, 中国环境出版社 * |
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