CN101659497A - Processing method of mixed tail water from pharmaceutical industrial park - Google Patents
Processing method of mixed tail water from pharmaceutical industrial park Download PDFInfo
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- CN101659497A CN101659497A CN200910035099A CN200910035099A CN101659497A CN 101659497 A CN101659497 A CN 101659497A CN 200910035099 A CN200910035099 A CN 200910035099A CN 200910035099 A CN200910035099 A CN 200910035099A CN 101659497 A CN101659497 A CN 101659497A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000003672 processing method Methods 0.000 title abstract description 4
- 239000010802 sludge Substances 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 3
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 13
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 12
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 12
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 10
- 238000005273 aeration Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 12
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000000356 contaminant Substances 0.000 abstract description 2
- 235000015097 nutrients Nutrition 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 23
- 238000011161 development Methods 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 230000000050 nutritive effect Effects 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- -1 poly propylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910000575 Ir alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- ZACYQVZHFIYKMW-UHFFFAOYSA-N iridium titanium Chemical compound [Ti].[Ir] ZACYQVZHFIYKMW-UHFFFAOYSA-N 0.000 description 1
- 239000002417 nutraceutical Substances 0.000 description 1
- 235000021436 nutraceutical agent Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a processing method of mixed tail water from a pharmaceutical industrial park, which belongs to the sewage processing field and comprises the following steps: after entering aregulating pond, the mixed tail water from the pharmaceutical industrial park enters an electro-catalytic oxidation (ECO) processing section; then, the water discharged from the ECO processing sectionenters a biofilm activated sludge processing section which adopts the combined technology of a moving bed biofilm reactor (MBBR) and activated sludge (AS); and finally, the water is discharged afterbeing processed by a settling pond. The processing method of the invention combines the ECO processing, the MBBR and the AS, enables the discharged water to meet the national sewage discharge standard(GB18918-2002), has the characteristics of small occupation of land, stable operation, high processing efficiency of contaminants, and the like, and can greatly reduce the yield of biological sludgeand reduce the discharge of nutrients capable of discharging water.
Description
Technical field
The invention belongs to industry and treatment of Organic Wastewater field, industrial park, what be specifically related to is a kind of treatment process of mixed tail water from pharmaceutical industrial park.
Background technology
The industrial park be on same position to satisfy different needs compatible design industrial colony, be the main flow of industrial concentrating type development, be the trend of international new industrialization development, be the certainty of optimizing the industrial chain development, be China's industrial development new model.According to incompletely statistics, the U.S., Canada, Britain, Germany build up operation in existing respectively 8800,1200,200,300 industrial parks in developed country.By China in 2007 national development area 192 families, provincial development area 1441 families, the development area that relates to heavy chemicals reaches more than 30%.Function difference according to the industrial park is divided three classes it: combined industrial park, auxiliary type industrial park and single type industrial park.The inner industry in combined industrial park is independent incoherent, and the industrial park is only as the usefulness that the place is provided; The inner industry in auxiliary type industrial park is the industry chain, and internal resource is shared the purpose of saving running cost to reach; The inner industry in single type industrial park is same type, so that better manage and run.Follow the huge gradually of industrial park scale, the problem of environmental pollution that the industrial park caused also increases year by year, especially the pollution becoming serious of aquatic environment has been become the key of restriction China industrial park fast continual development.
Because the up-to-date emission standard that China in 2008 has issued pharmacy waste water, cause the effluent of inner upstream, China part pharmacy garden institute of enterprise can not qualified discharge, cause China's mixed tail water from pharmaceutical industrial park that aquatic environment is caused a large amount of pollutions.The inner sewage treatment plant inflow in old home district has the composition complexity, and organism kinds is many, and variation water quality is big, COD and BOD
5Ratio is low, N, P nutritive substance scarcity, and colourity is dark, and toxicity is big, characteristics such as suspended solid SS concentration height.Biochemical processing method is the low method of processing efficiency height, working cost of generally acknowledging.At mixed tail water from pharmaceutical industrial park, the research report is very few both at home and abroad at present.It is a lot of that single pharmacy wastewater biochemical is handled research, as: UASB, UBF, bio-contact oxidation, membrane bioreactor MBR; Diphasic anaerobic (TPAD)-membrane bioreactor (MBR), technology such as the combination UASBAF technology of anaerobic UASB-aerobic biological fluid-bed AF.But at the process for comprehensively treating of pharmacy garden mixed tail water tackling key problem comparatively small amt, and the characteristics of the high density of this kind waste water, difficult degradation have also determined its importance in whole industry waste water.
People such as Li Fazhan often can not normally move when the routine biochemistry water technology is used for the application of biodegradability difference waste water, mud takes place easily to disintegrate, and be difficult to all contaminants in the waste water is removed, cause water outlet qualified discharge (Li Fazhan fully, Lv Xiwu, Ye Yousheng, etc. the biodegradability of used water difficult to degradate is inquired into. Treatment of Industrial Water, 2005,25 (5): 65-68).When nutritive element such as nitrogen, phosphorus in the waste water is deficient, adopt single this kind of CAS art breading waste water, phenomenons such as sludge bulking appear in CAS technology easily in the process of the test, not easy to operate, clearance is low, (wangkai army. the mechanism of activated sludge bulking and control [M]. Beijing: China Environmental Science Press, 1992:78.Fang Yifeng, Lin Fengkai, Lu Zhu. add the optimization function of nutritive element to the Wastewater Treated by Activated Sludge Process trade effluent. water technology, 2006,32 (9): 15-18).Single biochemical process can not all be removed pollutent in the waste water, and phenomenons such as sludge bulking, floc sludge disintegration take place characteristics easily because biodegradable material is few in the waste water, nutrition is unbalanced etc.
Summary of the invention
1, invents the technical problem that will solve
At the reluctant present situation of mixed tail water from pharmaceutical industrial park, the invention provides the treatment process of a kind of pharmacy garden mixed tail water, by the combination of technology, the synergy of performance combination process.At utmost promote wastewater biodegradability by catalytic oxidation processing section ECO technology; And MBBR technology is used for before the biological film activated sludge method BAS technology, be used to solve this kind waste water nitrogen, phosphorus scarcity to BAS technology the institute that may cause influential, make water outlet satisfy state sewage emission standard (GB18918-2002).
2, technical scheme
A kind of treatment process of mixed tail water from pharmaceutical industrial park the steps include:
(1) mixed tail water from pharmaceutical industrial park enters catalytic oxidation processing section ECO after entering equalizing tank;
(2) then the water outlet of catalytic oxidation processing section ECO enters the biological film activated sludge processing section, and described biological film activated sludge processing section is the combination process of MBBR MBBR and active sludge AS;
(3) after settling tank with qualified discharge.
The catalytic oxidation processing section adopts ECO (catalytic oxidation treatment process) to handle.
Equalizing tank recited above is the pulling flow type reaction unit, and reaction unit inside is provided with machine mixer.
The electrocatalysis oxidation reaction device that adopts in the step (1) is the rectangle electrolyzer, and battery lead plate is installed in the both sides of groove, and anode is titanium, iridium, ruthenium or its alloy, and negative electrode is a graphite, and the design residence time is 0.5-2h.
Above-mentioned MBBR MBBR reaction unit is the pulling flow type reaction unit, adds carrier filler, and gas-water ratio is 50: 1; MBBR is designed to two-part water inlet in parallel, and every section is the level Four series combination, and the residence time is 7.2-14.4h, and acrylonitrile-butadiene-styrene copolymer ABS material aeration tube is all laid in the bottom.
The carrier filler density of moving-bed membrane reactor MBBR is 0.98g/cm
-3, diameter 10mm, high 8mm, filler filling ratio are 60%.
50% combined stuffing is installed in the active sludge AS, and reactor bottom is provided with ABS aeration perforated pipe, water inlet be two sections parallel, the design residence time is 48h, water outlet is provided with the zig-zag overflow weir, mud is back in the active sludge AS inlet flume.
The described settling tank of step (3) designs for vertical sedimentation basin, and the bottom is provided with sludge bucket, and sludge part is back to active sludge AS inlet flume, and all the other excess sludges are discharged.
3, beneficial effect
The invention provides the treatment process of a kind of pharmacy garden mixed tail water, have the composition complexity at mixed tail water from pharmaceutical industrial park, organism kinds is many, and variation water quality is big, COD and BOD
5Ratio is low, N, P nutritive substance scarcity, colourity is dark, toxicity is big, and characteristics such as suspended solid SS concentration height are handled ECO and MBBR MBBR and active sludge AS with catalytic oxidation to combine, after this method processing, water outlet can be satisfied urban wastewater treatment firm pollutant emission standard (GB 18918-2002), and wherein COD is less than 100mg/L, BOD
5Less than 20mg/L, NH
4 +-N is less than 20mg/L, and colourity is less than 20 times.The present invention have take up an area of to economize, characteristics such as stable, Pollutant Treatment efficient height, can reduce biological sludge output significantly and reduce the nutraceutical discharging of water outlet.
Embodiment
Embodiment 1
In certain mixed tail water from pharmaceutical industrial park treating processes, water inlet COD=300～500mg/L, BOD
5=30～40mg/L, NH
4 +-N=3～10mg/L, pH value 7.0～8.0, colourity are 256 times, SS is 13mg/L.ECO, MBBR, AS design volume are respectively 0.4m
3, 1.5m
3, 10m
3, the residence time, (HRT) was respectively 2h, 7.2h and 48h.At first enter equalizing tank, equalizing tank is the pulling flow type reaction unit, and the residence time is 6h, then this waste water is carried out catalytic oxidation and handles, and the electrocatalysis oxidation reaction device is the rectangle electrolyzer, and anode is a titanium, and negative electrode is a graphite, and control current density is 6A/dm
2, handle the back effluent color dilution and remove 60%, BOD
5/ COD is promoted to 0.25 by 0.1.Waste water flows into the MBBR processing section then, and the MBBR reaction unit is the pulling flow type reaction unit, and the MBBR seed sludge is this pharmaceutical industry garden upstream enterprise second pond returned sluge.Add cylindrical hollow cross high density poly propylene floating stuffing (1*0.8) in the MBBR reactor, the density 0.98g/cm of filler
-3, diameter 10mm, high 8mm, filling ratio are 60% (volume ratio), and the bottom is provided with acrylonitrile-butadiene-styrene copolymer ABS aeration perforated pipe, and gas-water ratio is 50: 1; After treating that the carrier filler biofilm finishes, reacting its interior biomass is 30g/L.Then waste water enters the AS processing section, and the AS seed sludge is this pharmaceutical industry garden upstream enterprise second pond returned sluge, and remains on more than the 3g/L by sludge concentration in the mud backflow control AS reactor.Through the processing of combination process under the normal temperature, final outflow water COD is 80mg/L, BOD
5Be 15mg/L, NH
4 +-N is 1mg/L, pH7, and 16 times of colourities, SS is 1mg/L.
Embodiment 2
In certain mixed tail water from pharmaceutical industrial park treating processes, water inlet COD=450～600mg/L, BOD
5=15～30mg/L, NH
4 +-N=10～15mg/L, pH value 7.0～8.0, colourity are 512 times, SS is 70mg/L.ECO, MBBR, AS design volume are respectively 0.2m
3, 2.5m
3, 10m
3, the residence time, (HRT) was respectively 1h, 12h and 48h.At first enter equalizing tank, equalizing tank is the pulling flow type reaction unit, and the residence time is 6h, then this waste water is carried out catalytic oxidation and handles, and the electrocatalysis oxidation reaction device is the rectangle electrolyzer, and anode is the titanium iridium alloy, and negative electrode is a graphite, and control current density is 8A/dm
2, handle the back effluent color dilution and remove 72%, BOD
5/ COD by 0.02 be promoted to 0.15 then waste water flow into the MBBR processing section, the MBBR reaction unit is the pulling flow type reaction unit, the MBBR seed sludge is this pharmaceutical industry garden upstream enterprise second pond returned sluge.Add cylindrical hollow cross high density poly propylene floating stuffing (1*0.8) in the MBBR reactor, the density 0.98g/cm of filler
-3, diameter 10mm, high 8mm, filling ratio are 60% (volume ratio), and the bottom is provided with acrylonitrile-butadiene-styrene copolymer ABS aeration perforated pipe, and gas-water ratio is 50: 1; After treating that the carrier filler biofilm finishes, reacting its interior biomass is 30g/L.Then waste water enters the AS processing section, and the AS seed sludge is this pharmaceutical industry garden upstream enterprise second pond returned sluge, and remains on more than the 3g/L by sludge concentration in the mud backflow control AS reactor.Through the processing of combination process under the normal temperature, final outflow water COD is 95mg/L, BOD
5Be 8mg/L, NH
4 +-N is 0.5mg/L, pH7, and 16 times of colourities, SS is 5.7mg/L.
Embodiment 3
In certain mixed tail water from pharmaceutical industrial park treating processes, water inlet COD=600～780mg/L, BOD
5=100～120mg/L, NH
4 +-N=10～15mg/L, pH value 8.0～9.0, colourity are 128 times, SS is 41mg/L.ECO, MBBR, AS design volume are respectively 0.1m
3, 3m
3, 10m
3, the residence time, (HRT) was respectively 0.5h, 14.4h and 48h.At first enter equalizing tank, equalizing tank is the pulling flow type reaction unit, and the residence time is 6h, then this waste water is carried out catalytic oxidation and handles, and the electrocatalysis oxidation reaction device is the rectangle electrolyzer, and anode is a ruthenium, and negative electrode is a graphite, and control current density is 5A/dm
2, handle the back effluent color dilution and remove 55%, BOD
5/ COD is promoted to 0.33 by 0.12.Waste water flows into the MBBR processing section then, and the MBBR reaction unit is the pulling flow type reaction unit, and the MBBR seed sludge is this pharmaceutical industry garden upstream enterprise second pond returned sluge.Add cylindrical hollow cross high density poly propylene filler (1*0.8) in the MBBR reactor, the density 0.98g/cm of filler
-3, diameter 10mm, high 8mm, filling ratio are 60% (volume ratio), and the bottom is provided with acrylonitrile-butadiene-styrene copolymer ABS aeration perforated pipe, and gas-water ratio is 50: 1; After treating that the carrier filler biofilm finishes, reacting its interior biomass is 30g/L.Then waste water enters the AS processing section, and the AS seed sludge is this pharmaceutical industry garden upstream enterprise second pond returned sluge, and remains on more than the 3g/L by sludge concentration in the mud backflow control AS reactor.Through the processing of combination process under the normal temperature, final outflow water COD is 75mg/L, BOD
5Be 10mg/L, NH
4 +-N is 1mg/L, pH7, and 8 times of colourities, SS is 1.8mg/L.
Claims (7)
1, a kind of treatment process of mixed tail water from pharmaceutical industrial park the steps include:
(1) mixed tail water from pharmaceutical industrial park enters catalytic oxidation processing section ECO after entering equalizing tank;
(2) then the water outlet of catalytic oxidation processing section ECO enters the biological film activated sludge processing section, and described biological film activated sludge processing section is the combination process of MBBR MBBR and active sludge AS;
(3) after settling tank is handled discharging.
2, the treatment process of a kind of mixed tail water from pharmaceutical industrial park according to claim 1 is characterized in that equalizing tank is the pulling flow type reaction unit, and reaction unit inside is provided with machine mixer.
3, the treatment process of a kind of mixed tail water from pharmaceutical industrial park according to claim 1, it is characterized in that the catalytic oxidation processing section adopts the rectangle electrolyzer as the electrocatalysis oxidation reaction device in the step (1), battery lead plate is installed in the both sides of groove, anode is titanium, iridium, ruthenium or its alloy, negative electrode is a graphite, and the design residence time is 0.5-2h.
4, the treatment process of a kind of mixed tail water from pharmaceutical industrial park according to claim 1, it is characterized in that MBBR MBBR reaction unit is the pulling flow type reaction unit in the step (2), add carrier filler, gas-water ratio is 50: 1, MBBR is designed to two-part water inlet in parallel, every section is the level Four series combination, and the residence time is 7.2-14.4h, and acrylonitrile-butadiene-styrene copolymer ABS material aeration tube is all laid in the bottom.
5, the treatment process of a kind of mixed tail water from pharmaceutical industrial park according to claim 4, the carrier filler density that it is characterized in that described moving-bed membrane reactor MBBR is 0.98g/cm
-3, the filler filling ratio is 60%.
6, the treatment process of a kind of mixed tail water from pharmaceutical industrial park according to claim 1, it is characterized in that installing in the active sludge AS in the step (2) 50% combined stuffing, reactor bottom is provided with ABS aeration perforated pipe, water inlet be two sections parallel, the design residence time is 48h, water outlet is provided with the zig-zag overflow weir, and mud is back in the active sludge AS inlet flume.
7, the treatment process of a kind of mixed tail water from pharmaceutical industrial park according to claim 1, it is characterized in that settling tank designs for vertical sedimentation basin in the step (3), the bottom is provided with sludge bucket, and sludge part is back to active sludge AS inlet flume, and all the other excess sludges are discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035099A CN101659497A (en) | 2009-09-15 | 2009-09-15 | Processing method of mixed tail water from pharmaceutical industrial park |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035099A CN101659497A (en) | 2009-09-15 | 2009-09-15 | Processing method of mixed tail water from pharmaceutical industrial park |
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| Publication Number | Publication Date |
|---|---|
| CN101659497A true CN101659497A (en) | 2010-03-03 |
Family
ID=41787781
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|---|---|---|---|
| CN200910035099A Pending CN101659497A (en) | 2009-09-15 | 2009-09-15 | Processing method of mixed tail water from pharmaceutical industrial park |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139992A (en) * | 2011-01-28 | 2011-08-03 | 江苏省环境科学研究院 | Process and equipment for treating high-concentration pyridine waste water |
| CN106977045A (en) * | 2017-03-30 | 2017-07-25 | 中国环境科学研究院 | A kind of strenuous primary treatment method and device of refractory pharmaceutical park tail water |
| CN109626524A (en) * | 2019-02-19 | 2019-04-16 | 北京朗新明环保科技有限公司 | A kind of coking wastewater processing system and method comprising electrocatalytic oxidation unit |
| CN110606530A (en) * | 2019-09-23 | 2019-12-24 | 北京联合润达科技有限公司 | Wastewater treatment method, device and system |
| CN112142267A (en) * | 2020-10-09 | 2020-12-29 | 哈尔滨工业大学 | Anaerobic bioelectrochemistry-aerobic moving bed biofilm integrated wastewater treatment device and wastewater treatment method thereof |
-
2009
- 2009-09-15 CN CN200910035099A patent/CN101659497A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139992A (en) * | 2011-01-28 | 2011-08-03 | 江苏省环境科学研究院 | Process and equipment for treating high-concentration pyridine waste water |
| CN106977045A (en) * | 2017-03-30 | 2017-07-25 | 中国环境科学研究院 | A kind of strenuous primary treatment method and device of refractory pharmaceutical park tail water |
| CN109626524A (en) * | 2019-02-19 | 2019-04-16 | 北京朗新明环保科技有限公司 | A kind of coking wastewater processing system and method comprising electrocatalytic oxidation unit |
| CN110606530A (en) * | 2019-09-23 | 2019-12-24 | 北京联合润达科技有限公司 | Wastewater treatment method, device and system |
| CN112142267A (en) * | 2020-10-09 | 2020-12-29 | 哈尔滨工业大学 | Anaerobic bioelectrochemistry-aerobic moving bed biofilm integrated wastewater treatment device and wastewater treatment method thereof |
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Open date: 20100303 |