CN113501621A - Developer solution effluent disposal system - Google Patents
Developer solution effluent disposal system Download PDFInfo
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- CN113501621A CN113501621A CN202110842131.4A CN202110842131A CN113501621A CN 113501621 A CN113501621 A CN 113501621A CN 202110842131 A CN202110842131 A CN 202110842131A CN 113501621 A CN113501621 A CN 113501621A
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- tank
- membrane
- reaction tank
- water
- tmah
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- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims abstract description 107
- 239000012528 membrane Substances 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 31
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000002351 wastewater Substances 0.000 claims abstract description 17
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 15
- 244000005700 microbiome Species 0.000 claims description 13
- 239000010802 sludge Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 8
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 8
- -1 amine compounds Chemical class 0.000 claims description 8
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 8
- 230000003301 hydrolyzing effect Effects 0.000 claims description 7
- 238000005374 membrane filtration Methods 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000010815 organic waste Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 239000012510 hollow fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000003851 biochemical process Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 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 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002897 organic nitrogen compounds Chemical class 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The invention discloses a developer solution wastewater treatment system, which mainly comprises a TMAH decomposition reaction tank and a membrane separation tank, wherein a water distributor is arranged in the decomposition reaction tank, and the water distributor uniformly distributes the water inlet of the reaction tank and the circulating reflux liquid of the membrane separation tank at the bottom of the tank; install immersed membrane module in the membrane separation tank, the membrane module lower part is equipped with the perforation aeration pipe, and the aeration pipe links to each other with the outer air conduit of pond, makes immersed membrane module's membrane silk shake through the aeration, avoids the mud siltation on membrane silk surface, and entire system passes through the connecting tube and forms closed loop with reaction tank and membrane separation tank. The treatment system does not need to heat the wastewater, and has simple operation and lower energy consumption; the treatment load of the reaction tank is improved, the effective volume of the reaction tank is reduced, and the occupied area of the system is saved; moreover, the highest concentration of the TMAH tolerant inlet water of the whole system is 2000mg/L, and the TMAH removal rate can reach more than 80%.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a developer solution wastewater treatment system.
Background
High-concentration developer wastewater is generated in the production process of the liquid crystal panel, and the main component of the wastewater is Tetramethylammonium hydroxide (hereinafter referred to as TMAH). TMAH is an organic nitrogen compound with strong basicity, corrosivity and biotoxicity, is difficult to biodegrade, and inhibits the activity of aerobic microorganisms in a wastewater biochemical treatment system under the condition of high concentration, so that the total nitrogen and ammonia nitrogen removal rate of the biochemical system is reduced, and the treated effluent is influenced to reach the standard and be discharged.
The invention patent CN111285547A proposes that high-concentration developer wastewater is treated by an anaerobic biochemical process, and TMAH is degraded into ammonia nitrogen and methane by anaerobic methanogens. Compared with the traditional A/O (anoxic/aerobic) biochemical process, the process has the characteristics of high intake TMAH concentration tolerance, high treatment load, low energy consumption and the like. However, the process has the following disadvantages: after the developer wastewater is subjected to anaerobic biochemical treatment, most organic carbon in the TMAH is converted into methane to escape from the water, and most organic nitrogen is converted into ammonia nitrogen and still remains in the water, so that the carbon-nitrogen ratio of the effluent of the anaerobic biochemical treatment is greatly reduced. When the anaerobic effluent is subjected to further total nitrogen removal treatment by adopting an A/O biochemical process, an external carbon source medicament (such as glucose) is required to be added additionally so as to meet the requirement of a denitrification process on a carbon source and increase the operating cost of a wastewater treatment system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a treatment system of developer wastewater, which mainly comprises a TMAH decomposition reaction tank and a membrane separation tank, wherein the TMAH decomposition reaction tank is a bioreactor, the tank is an anaerobic or low-dissolved-oxygen environment, and TMAH in the developer wastewater is decomposed into organic amine compounds such as trimethylamine, dimethylamine, monomethylamine and the like through the action of hydrolytic microorganisms.
Furthermore, the TMAH decomposition reaction tank is a closed water tank, the water inlet is positioned at the bottom of the reaction tank, and the water inlet is connected with an outlet pipeline of an external water inlet pump and is connected with a water distributor at the bottom in the reaction tank. The water distributor distributes the water inlet of the reaction tank and the circulating reflux liquid of the membrane separation tank uniformly at the bottom of the tank; the water distributor is in a perforated pipe form. The top of the reaction tank is provided with an exhaust port which is connected with an external gas collecting pipeline and used for conveying odor generated by reaction to an organic waste gas treatment device for centralized treatment. The water outlet is positioned at the upper part of the reaction tank, and the mixed liquid in the reaction tank flows into the membrane separation tank through the water outlet and the pipeline.
Furthermore, the membrane separation tank is a closed water tank, an immersed membrane assembly is arranged in the tank, the hydrolytic microorganisms in the mixed liquid are intercepted in the tank through the filtering action of the membrane, and the filtered water of the membrane is pumped out by a pumping-out water pump outside the tank and is conveyed to a subsequent A/O biochemical denitrification system for treatment.
Furthermore, the immersed membrane component is a hollow fiber membrane and consists of an upper end head of the membrane component, membrane threads and a lower end head of the membrane component, the aperture of the membrane filtration is 0.1-0.2 mu m, and the membrane material is PTFE (polytetrafluoroethylene) or PVDF (polyvinylidene fluoride).
Furthermore, the lower part of the membrane component is provided with a perforated aeration pipe, the aeration pipe is connected with an air pipeline outside the tank, and membrane filaments of the immersed membrane component are shaken through aeration to avoid sludge deposition on the surface of the membrane filaments.
Furthermore, the lower part of the membrane separation tank is provided with a mixed liquid outlet which is connected with an inlet of a circulating pump outside the tank through a pipeline, and the outlet of the circulating pump is connected with an outlet pipeline of a water inlet pump of the TMAH decomposition reaction tank through a pipeline. The mixed liquid in the membrane separation tank is mixed with inlet water through a circulating pump and then enters a TMAH decomposition reaction tank.
Further, an exhaust port is arranged at the top of the membrane separation tank and connected with an external gas collection pipeline, and gas in the tank is conveyed to an organic waste gas treatment system for centralized treatment.
Further, the sludge concentration of the TMAH decomposition reaction tank is as follows: 8g/L to 20 g/L; dissolved oxygen in the TMAH decomposition reaction tank is less than 0.5 mg/L; the pH value of the TMAH decomposition reaction tank is as follows: 6.5 to 7.5; the volume load of the TMAH decomposition reaction tank is more than 2 kgTMAH/m3D; the membrane filtration flux of the membrane separation tank is more than 15L/m2H; the circulating reflux ratio of the mixed liquid ranges from 100 percent to 400 percent.
Compared with the prior art, the invention has the following advantages:
(1) in the wastewater treatment system of the present invention, the domesticated microorganism performs hydrolysis in an anaerobic or low dissolved oxygen environment to decompose TMAH in the developer wastewater into organic amine compounds such as trimethylamine, dimethylamine, methylamine, and the like. The organic amine compound has reduced toxicity and inhibitive ability and greatly improved biodegradability compared with TMAH, and can be used as a carbon source for the subsequent denitrification reaction. In addition, the wastewater treatment system disclosed by the invention can tolerate the highest concentration of intake TMAH of 2000mg/L, and the TMAH removal rate can reach more than 80%.
(2) The wastewater treatment system can operate at normal temperature, does not need to heat wastewater, and has simple operation and low energy consumption.
(3) The common hydrolysis bioreactor has the defects of low treatment load, large occupied area, easy loss of microorganisms, easy short flow in a reaction tank and the like. The invention combines membrane separation and hydrolysis reaction tank, intercepts microorganism by membrane filtration, solves the problem of easy loss of microorganism, and greatly increases the sludge concentration (the sludge concentration can reach 20g/L at most) in the TMAH decomposition reaction tank, thereby improving the treatment load of the reaction tank, reducing the effective volume of the reaction tank and saving the occupied area of the system device.
(4) The invention arranges the circulating pump to reflux the sludge mixed liquid in the membrane separation tank to the TMAH decomposition reaction tank in a large proportion, and the design has the advantages that: on one hand, the mixed solution is refluxed in a large proportion, so that high-concentration developing solution wastewater can be diluted, and the actual intake TMAH concentration of the TMAH decomposition reaction tank is reduced, so that the activity inhibition of high-concentration TMAH on hydrolytic microorganisms in the reaction tank is avoided; on the other hand, the water distribution flow of the TMAH decomposition reaction tank water distributor is greatly increased after the mixed solution is refluxed in a large proportion, so that high-resistance perforated water distribution is formed, the water distribution is more uniform, in addition, the ascending flow velocity in the reaction tank is also greatly improved, and the short flow phenomenon in the reaction tank is favorably eliminated.
Drawings
FIG. 1 is an overall configuration diagram of a developer wastewater treatment system in example 1 of the present invention.
FIG. 2 is an overall configuration diagram of a developer wastewater treatment system in example 2 of the present invention.
Fig. 3 is a structural view of an immersed membrane module in the present invention.
Wherein: 1-water inlet pump, 2-TMAH decomposition reaction tank, 3-water distributor, 4-membrane separation tank, 5-immersed membrane component, 51-upper end of component, 52-membrane filament of component, 53-lower end of component, 6-aeration pipe, 7-suction water pump, 8-circulating pump and 9-filler.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in attached figure 1, the developing solution wastewater treatment device of the inventionThe system mainly comprises a TMAH decomposition reaction tank 2 and a membrane separation tank 4, wherein the TMAH decomposition reaction tank 2 is a bioreactor, the inside of the tank is an anaerobic or low dissolved oxygen environment, the dissolved oxygen in the TMAH decomposition reaction tank 2 is less than 0.5mg/L, and TMAH in the developer wastewater is decomposed into organic amine compounds such as trimethylamine, dimethylamine, monomethylamine and the like through the action of hydrolytic microorganisms; wherein the sludge concentration of the TMAH decomposition reaction tank 2 is 8-20 g/L; the pH value is between 6.5 and 7.5; the volume load is more than 2 kgTMAH/m3·d。
The further improvement is that the TMAH decomposition reaction tank 2 is a closed water tank, the water inlet is positioned at the bottom of the reaction tank, and the water inlet is connected with an outlet pipeline of an external water inlet pump 1 and is connected with a water distributor 3 at the bottom in the reaction tank. The water distributor 3 uniformly distributes the water inlet of the reaction tank and the circulating reflux liquid of the membrane separation tank 4 at the bottom of the tank; the water distributor 3 is in the form of perforated pipes. The top of the reaction tank is provided with an exhaust port which is connected with an external gas collecting pipeline and used for conveying odor generated by reaction to an organic waste gas treatment device for centralized treatment. The water outlet is positioned at the upper part of the reaction tank, and the mixed liquid in the reaction tank flows into the membrane separation tank 4 through the water outlet and the pipeline.
Further, the membrane separation tank 4 is a closed water tank, an immersed membrane component 5 is arranged in the tank, the hydrolysis microorganisms in the mixed solution are trapped in the tank through the filtration action of the membrane, wherein the membrane filtration flux of the membrane separation tank is more than 15L/m2H, the membrane filtered effluent is pumped out by an effluent pump 7 outside the tank and is conveyed to a subsequent A/O biochemical denitrification system (not shown in the figure) for treatment.
Further, the immersed membrane component 5 is a hollow fiber membrane and comprises a membrane component upper end, membrane filaments and a membrane component lower end, when in filtration, water enters the membrane filaments from the outside, particles are intercepted outside the membrane filaments, the upper end and the lower end of the membrane component are used for fixing the roots of the membrane filaments, wherein the upper end of the membrane component can collect filtered water from the membrane filaments, the membrane filtration pore diameter is 0.1-0.2 mu m, and the membrane material is PTFE (polytetrafluoroethylene) or PVDF (polyvinylidene fluoride).
Further, the lower part of the membrane component 5 is provided with a perforated aeration pipe 6, the aeration pipe 6 is connected with an air pipeline outside the tank, and membrane filaments of the immersed membrane component 5 are shaken through aeration to avoid sludge deposition on the surface of the membrane filaments.
Further, the lower part of the membrane separation tank 4 is provided with a mixed liquid outlet which is connected with an inlet of a circulating pump 8 outside the tank through a pipeline, the outlet of the circulating pump 8 is connected with an outlet pipeline of a water inlet pump of the TMAH decomposition reaction tank 2 through a pipeline, wherein the circulating reflux ratio of the mixed liquid ranges from 100% to 400%. The mixed liquid in the membrane separation tank 4 is mixed with inlet water through a circulating pump 8 and then enters the TMAH decomposition reaction tank 2.
Further, the top of the membrane separation tank 4 is provided with an exhaust port, the exhaust port is connected with an external gas collection pipeline, and gas in the tank is conveyed to an organic waste gas treatment system for centralized treatment.
The above is the composition and the working flow of the developer solution wastewater treatment system of the present invention, and the following is described with reference to specific experimental data:
experiment 1, the concentration of TMAH in the wastewater is 890 mg/L:
according to the 3 experimental data, under different system device parameter settings, the high removal rate of the high-concentration TMAH waste liquid in the waste water is achieved after the treatment of the invention.
Example 2
An improvement is made on the basis of the developer wastewater treatment system in embodiment 1, as shown in fig. 2, biological fillers are arranged in the TMAH decomposition reaction tank, and hydrolytic microorganisms are attached to the fillers to increase the sludge concentration in the reaction tank, so that the TMAH decomposition efficiency is improved. The biological filler is a commercial combined filler or a braided filler.
Claims (8)
1. A developer solution wastewater treatment system is characterized by comprising a TMAH decomposition reaction tank (2) and a membrane separation tank (4), wherein the TMAH decomposition reaction tank (2) is a bioreactor, an anaerobic or low dissolved oxygen environment is adopted in the tank, and TMAH in developer solution wastewater is decomposed into organic amine compounds such as trimethylamine, dimethylamine and monomethylamine by the action of hydrolytic microorganisms.
2. The developer wastewater treatment system according to claim 1, wherein the TMAH decomposition reaction tank (2) is a closed water tank, the water inlet is positioned at the bottom of the reaction tank, and the water inlet is connected with an outlet pipeline of an external water inlet pump (1) and a water distributor (3) at the bottom of the reaction tank; the water distributor (3) distributes the water inlet of the reaction tank and the circulating reflux liquid of the membrane separation tank (4) uniformly at the bottom of the tank; the water distributor (3) is in a perforated pipe form; the top of the reaction tank is provided with an exhaust port which is connected with an external gas collecting pipeline and used for conveying odor generated by the reaction to an organic waste gas treatment device for centralized treatment; the water outlet is positioned at the upper part of the reaction tank, and the mixed liquid in the reaction tank flows into the membrane separation tank (4) through the water outlet and the pipeline.
3. The developer wastewater treatment system according to claim 1, wherein the membrane separation tank (4) is a closed water tank, at least 2 sets of immersed membrane modules (5) are installed in the tank, the hydrolytic microorganisms in the mixed solution are trapped in the tank by the filtration action of the membrane, and the membrane filtered water is pumped out by a suction water pump (7) outside the tank and is conveyed to a subsequent A/O biochemical denitrification system for treatment.
4. The developer wastewater treatment system according to claim 1, wherein the immersed membrane module (5) is a hollow fiber membrane, the membrane filtration pore size is 0.1 to 0.2 μm, and the membrane material is PTFE (polytetrafluoroethylene) or PVDF (polyvinylidene fluoride).
5. The developer wastewater treatment system according to claim 1, wherein the lower part of the submerged membrane module (5) is provided with a perforated aeration pipe (6), the aeration pipe (6) is connected with an air pipeline outside the tank, and membrane filaments of the submerged membrane module (5) are shaken by aeration to prevent sludge from depositing on the surface of the membrane filaments.
6. The developer solution wastewater treatment system according to claim 1, wherein the lower part of the membrane separation tank (4) is provided with a mixed solution outlet, the mixed solution outlet is connected with an inlet of a circulating pump (8) outside the tank through a pipeline, an outlet of the circulating pump (8) is connected with an outlet pipeline of a water inlet pump (1) of the TMAH decomposition reaction tank (2) through a pipeline, and the mixed solution in the membrane separation tank (4) is mixed with inlet water through the circulating pump (8) and then enters the TMAH decomposition reaction tank (2).
7. The developer solution wastewater treatment system according to claim 1, wherein the top of the membrane separation tank (4) is provided with an exhaust port, the exhaust port is connected with an external gas collection pipeline, and the gas in the tank is conveyed to the organic waste gas treatment system for centralized treatment.
8. The developer solution wastewater treatment system according to claim 1, wherein the concentration of sludge in the TMAH decomposition reaction tank (2) is in the range of 8-20 g/L; the dissolved oxygen in the TMAH decomposition reaction tank (2) is less than 0.5 mg/L; the pH value range of the TMAH decomposition reaction tank (2) is 6.5-7.5; the volume load of the TMAH decomposition reaction tank (2) is more than 2 kgTMAH/m3D; the membrane filtration flux of the membrane separation tank (4) is more than 15L/m2H; the circulating reflux ratio of the mixed liquid ranges from 100 percent to 400 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842131.4A CN113501621A (en) | 2021-07-26 | 2021-07-26 | Developer solution effluent disposal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842131.4A CN113501621A (en) | 2021-07-26 | 2021-07-26 | Developer solution effluent disposal system |
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| Publication Number | Publication Date |
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| CN113501621A true CN113501621A (en) | 2021-10-15 |
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Family Applications (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1899982A (en) * | 2005-07-22 | 2007-01-24 | 因必欧奈特公司 | Novel strain capable of decomposing tetramethyl ammonium hydroxide and method for treating waste water using the strain |
| CN101462811A (en) * | 2007-12-21 | 2009-06-24 | 栗田工业株式会社 | Biological treatment method and apparatus for organic containing water |
| JP2010017614A (en) * | 2008-07-08 | 2010-01-28 | Kurita Water Ind Ltd | Method and apparatus for treating organic wastewater |
| JP2010274207A (en) * | 2009-05-29 | 2010-12-09 | Japan Organo Co Ltd | Method and apparatus for anaerobic biological treatment |
| CN102730901A (en) * | 2011-03-30 | 2012-10-17 | 栗田工业株式会社 | Processing method and processing device of drained water with organic matters |
| CN103663869A (en) * | 2013-12-05 | 2014-03-26 | 武汉宏澳绿色能源工程有限责任公司 | Device and method for treating high density organic waste water by multiphase photocatalysis combined film bioreactor |
-
2021
- 2021-07-26 CN CN202110842131.4A patent/CN113501621A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1899982A (en) * | 2005-07-22 | 2007-01-24 | 因必欧奈特公司 | Novel strain capable of decomposing tetramethyl ammonium hydroxide and method for treating waste water using the strain |
| CN101462811A (en) * | 2007-12-21 | 2009-06-24 | 栗田工业株式会社 | Biological treatment method and apparatus for organic containing water |
| JP2010017614A (en) * | 2008-07-08 | 2010-01-28 | Kurita Water Ind Ltd | Method and apparatus for treating organic wastewater |
| JP2010274207A (en) * | 2009-05-29 | 2010-12-09 | Japan Organo Co Ltd | Method and apparatus for anaerobic biological treatment |
| CN102730901A (en) * | 2011-03-30 | 2012-10-17 | 栗田工业株式会社 | Processing method and processing device of drained water with organic matters |
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Non-Patent Citations (2)
| Title |
|---|
| BING LIU ET AL: "Kinetic analysis of biological degradation for tetramethylammonium hydroxide (TMAH) in the anaerobic activated sludge system at ambient temperature", 《BIOCHEMICAL ENGINEERING JOURNAL》 * |
| 杨作清等: "《钢铁工业水处理实用技术与应用》", 30 June 2015, 北京：冶金工业出版社 * |
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Application publication date: 20211015 |