CN102557352A - Method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration - Google Patents
Method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration Download PDFInfo
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Abstract
The invention discloses a method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration, and relates to a wastewater treatment method. The original wastewater enters a first-stage aerobic tank in which a first-stage perforated aeration pipe is arranged, an external air compressor is used for blast aeration, the aeration amount is controlled by a rotameter, and sludge is discharged from the bottom of the first-stage aerobic tank; the wastewater flowing through the first-stage aerobic tank flows into a first-stage anaerobic tank through a first-stage dynamic membrane, a first-stage stirrer device is arranged in the first-stage anaerobic tank, and sludge is discharged from the bottom of the first-stage anaerobic tank; the wastewater flowing through the first-stage anaerobic tank flows into a second-stage aerobic tank through a second-stage dynamic membrane, a second-stage perforated aeration pipe is arranged in the second-stage aerobic tank, an air compressor is used for blast aeration and sludge is discharged from the bottom of the second-stage aerobic tank; and the wastewater flowing through the second-stage aerobic tank flows into a second-stage anaerobic tank through a third-stage dynamic membrane, a second-stage stirrer device is arranged in the second-stage anaerobic tank, sludge is discharged from the bottom of the second-stage anaerobic tank, and the wastewater reaching the standard is discharged through a water outlet of the second-stage anaerobic tank.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, especially relate to the method for the close-coupled processing organic waste water of a kind of Dynamic Membrane anaerobic-aerobic.
Background technology
Along with the fast development of industrial technology, the high concentrated organic wastewater of industries such as printing and dyeing, chemical industry, food, papermaking becomes sewage treatment area and needs one of difficult problem of solution badly.At present, the treatment of Organic Wastewater technology mainly contains physics method, chemical method and biological process both at home and abroad, and wherein application is the most extensive, and technical dominant method is a biological treatment.In recent years, biological wastewater treatment technology turns to the anaerobic-aerobic combination treatment method by the single anaerobic process of tradition, aerobic method, like anaerobic-aerobic method (A/O method), anaerobic-anoxic-aerobic method (A/A/O method) etc.Through the anaerobism that adopts multistage multistage, aerobic combination process, accomplish biological treatment to organic waste water.And anerobes requires harsh to envrionment conditions, and to the bad adaptability of environment, when organic loading was too high in the water inlet, the acidication product produced accumulation, caused water body basicity to reduce, and the anerobes activity also is suppressed.Simultaneously, thread fungus breeds in a large number, sludge loss, and effluent quality worsens, and has increased the weight of the burden of follow-up aerobic treatment.Patent publication No. is that the Chinese invention patent application of CN1422817 has proposed the anaerobism-oxygen-aerobic integratedization sewage water treatment method of holding concurrently; Through three conversion zones of poison are set in single reaction equipment: anaerobic zone, aerobic area, aerobic zone; Form three kinds of living things systems; Utilize the power power of giving of aerobic zone to realize waterpower circulation and mud circulation, reduce acidifying in the anaerobic pond.This method equipment used cost of investment is high, and parameter control difficulty is big in the operating process.Patent publication No. is that the Chinese invention patent application of CN1429780 has proposed a kind of sewage treatment technique; Change traditional large-scale aeration tank into a plurality of small-sized reaction tanks; Change the WWT path, the processing through multistage multistage reaches sewage drainage standard; But this process engineering investment is big, and running cost is higher.Patent publication No. is that the Chinese invention patent application of CN1271692A has proposed a kind of process for treating high-concentration sewage; Through the sewage backflow jar is set behind anaerobic reation pool, aerobic degradation is carried out in part of contaminated water entering aerobe selector switch and aeration tank in the return tank, and another part is back in the anaerobic pond; Though but this method has improved the basicity of water in the anaerobic pond; But exist excess sludge maximum, problem such as energy consumption is high, and floor space is big.
Membrane Bio-reactor Technology (MBR) adopts membrane separation technique to combine with biologic treating technique, therefore has following spy
1) sludge concentration high (be generally traditional technology 2 times), biochemical efficiency is high, and degradation of pollutant is fast, and effluent quality is good;
2) help long microbial growth of generation cycle, help the place to go of ammonia nitrogen and difficult degradation pollution substance;
3) mud is longer age, and the excess sludge discharge amount is less;
4) floor space is little, practices thrift the soil.The film-bioreactor technology is the new system that membrane separation technique and biological wastewater treatment technology are combined; This system substitutes the second pond in the two stage biological treatment process with membrane separation technique, but have technical process simple, take up an area of less, characteristics such as convenient management, processing efficiency height, water outlet direct reuse.Yet it is the major obstacle of restriction film-bioreactor widespread use in WWT that film pollutes, and research shows, having adhering to of mikrobe such as active sludge in traditional film-bioreactor is to cause film to pollute, influence one of important factor of membrane flux.Therefore, improve the existence form of mikrobe in the film-bioreactor, alleviate that it is imperative to influence that film pollutes.Publication number is that the Chinese invention patent of CN01016185A, CN1974439A, CN01100333A adopts respectively and takes filler to show to adhere to engineering bacteria or enzyme form; Or adopt the form of granule sludge to make the mikrobe in the film-bioreactor no longer exist, thereby alleviate influence to membrane flux with suspended state.Yet, utilize the mode of filling surface attached microbial to improve to exist to be unfavorable for shortcomings such as extraordinary microbial growth, microorganism concn are low, soil removability difference; Utilize granule sludge to improve and exist granule sludge structure of community broken easily, that cause stopping up fenestra, granule sludge self formation to be difficult to shortcomings such as MC microflora stablizes.
Although above-mentioned patent is improved biological treatment and innovated, the instance that MBR technology is used in large-scale WWT is few.Cause the reason of this present situation mainly to be: the cost of membrane module is too high; The operational process power consumption is too high; Cause working cost very high; Suspended contaminant is trapped or is adsorbed on the film surface under the effect of pressure in the operational process of film, makes film forming pollution, and the attenuation problem of effluent flux is difficult to solve.Therefore, need to research and develop out novel membrane bioreactor, so that it addresses the above problem on the basis that keeps original advantage as far as possible to these shortcomings.In the common membrane filtration processes, colloid in the solution and suspended particle are trapped or are adsorbed on the film surface under the effect of filter pressure, caused the decline of membrane flux, and this phenomenon is called film and pollutes.But see that from the another one angle pollution layer on film surface has strengthened the interception capacity of film, makes microfiltration membrane can hold back virus even small organic molecule, just looks like on original film, to have increased a skim again.Because this tunic forms in filtration procedure, its composition and thickness all possibly reach the variation of condition such as bio-reactor operation in time and change, so some investigators are referred to as Dynamic Membrane or secondary film.Correspondingly, with this bioreactor of dynamic membrane that is called.The appearance of Dynamic Membrane has solved two hang-ups of above-mentioned MBR well, because because the selection of porous counterdie and precoating paint extensively with cheap and easy to get, makes the cost of Dynamic Membrane than traditional M BR very significantly decline arranged.In addition, because that the porous counterdie is the flux of membrane matrix itself is just very big, precoating or spontaneous again again after under the with serious pollution situation of film, can also the Dynamic Membrane on membrane matrix surface being removed, thereby controlling diaphragm pollution effectively.And other advantages such as Dynamic Membrane also has that equipment is simple, processing ease, treatment effect are better.Therefore, Dynamic membrane has caused people's research and concern widely.
Summary of the invention
The objective of the invention is to existing, problems such as occupation area of equipment big, cost of investment height or not, provide a kind of the organic waste water method of the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic of highly economical more to existing efficient in the treatment of Organic Wastewater.
The present invention includes following steps:
1) raw wastewater gets into the 1st grade of Aerobic Pond, the 1st grade of Aerobic Pond inside the 1st grade of boring aeration pipe is housed, by the blast aeration of air outside compressor, and with spinner-type flowmeter control aeration rate, the 1st grade of Aerobic Pond bottom spoil disposal;
2) flow into the 1st grade of anaerobic pond through the waste water after the 1st grade of Aerobic Pond processing certainly through the 1st grade of Dynamic Membrane, the 1st grade of whipping appts is set in the 1st grade of anaerobic pond, the 1st grade of anaerobic pond bottom spoil disposal;
3) flow into the 2nd grade of Aerobic Pond through the waste water after the 1st grade of anaerobic pond processing certainly through the 2nd grade of Dynamic Membrane, the 2nd grade of boring aeration pipe is housed the 2nd grade of Aerobic Pond inside, by the air blast aeration, the 2nd grade of Aerobic Pond bottom spoil disposal;
4) waste water after handling through the 2nd grade of Aerobic Pond from flowing into the 2nd grade of anaerobic pond, is provided with the 2nd grade of whipping appts through the 3rd level Dynamic Membrane in the 2nd grade of anaerobic pond, the 2nd grade of anaerobic pond bottom spoil disposal, and the treating water after up to standard is discharged by the water outlet of the 2nd grade of anaerobic pond.
In step 1), said the 1st grade of Aerobic Pond can be to move under 10～35 ℃ of conditions in temperature; Said aeration rate can be controlled in 0.5～5L/min, and the dissolved oxygen in the 1st grade of Aerobic Pond can be DO >=2.0mg/L.
In step 2) in, the temperature of said the 1st grade of anaerobic pond can be 15～35 ℃, and the stirring velocity of said the 1st grade of whipping appts can be 60～200r/min.
In step 3), said the 2nd grade of Aerobic Pond can be to move under 10～35 ℃ of conditions in temperature, and said aeration rate can be controlled in 0.5～5L/min, and the dissolved oxygen in the 2nd grade of Aerobic Pond can be DO >=2.0mg/L.
In step 4), the temperature of said the 2nd grade of anaerobic pond can be 15～35 ℃, and the stirring velocity of said the 2nd grade of whipping appts can be 60～150r/min.
Said the 1st boring aeration pipe and the 2nd boring aeration pipe all can adopt the core aeration first-class.
Said Dynamic Membrane can adopt industrial filter cloth film etc., and the filter cloth aperture of said industrial filter cloth film can be 10～100 μ m, and said industrial filter cloth film can be selected from least a in the long fine filter cloth film of terylene short fiber filter cloth film, terylene, polyvinyl filter cloth film, the polypropylene fibre filter cloth film etc.
The present invention through constant flow pump control water inlet flow velocity, makes waste water in 4 reaction tanks, handle successively, water outlet back up to standard discharging according to waste water quality type, the processing water yield and organic loading.
The effect of Dynamic Membrane and function are:
1) Dynamic Membrane has solved the expensive and film pollution difficult problem of MBR film: the cost of traditional membrane module is high, and the operational process power consumption is big, causes working cost high.Suspended contaminant is trapped or is adsorbed on the film surface under the effect of pressure in the operational process of film, makes film forming pollution.And Dynamic Membrane is extensive and cheap and easy to get by the selection of porous counterdie and precoating paint, makes its cost and cost have very significantly than traditional M BR and descends.The porous counterdie is that the flux of membrane matrix itself is bigger, precoating or spontaneous again again after under the with serious pollution situation of film, can also the Dynamic Membrane on membrane matrix surface being removed, thus controlling diaphragm pollutes effectively.
2) replace traditional membrane module with Dynamic Membrane; It organically combines membrane separation technique and bioprocesses; High efficiency separation effect with membrane technique replaces the second pond in the traditional activated sludge process; Realize traditional technology incomparable mud-water separation and mud concentrated effect, eliminated the influence of sludge bulking.It has also increased substantially concentration of activated sludge in the aeration tank; Save the mud return-flow system, prolonged mud age greatly, reduced surplus sludge volume; And, improved water quality of processed water greatly through the efficient crown_interception of film to SS, organism, pathogenic bacteria and virus in the waste water.
Compare with the multistage multistage dirty water living creature processing technique of traditional organic waste water, the present invention has that floor space is little, cost of investment is low, equipment is simple, easy to operate, high treating effect, is applicable to the processing of organic waste water.
Description of drawings
Fig. 1 is an embodiment of the invention process flow diagram.
Embodiment
Referring to Fig. 1, the present invention includes following steps:
1) raw wastewater gets into the 1st grade of Aerobic Pond 1 through water inlet A; The 1st grade of Aerobic Pond 1 inside the 1st grade of boring aeration pipe 2 is housed; By 3 blast aerations of air outside compressor, with spinner-type flowmeter 4 control aeration rates, the 1st grade of Aerobic Pond 1 bottom spoil disposal (in Fig. 1, representing) with mark C; Said the 1st grade of Aerobic Pond 1 can be to move under 10～35 ℃ of conditions in temperature; Said aeration rate can be controlled in 0.5～5L/min, and the dissolved oxygen in the 1st grade of Aerobic Pond 1 can be DO >=2.0mg/L.
2) flow into the 1st grade of anaerobic pond 6 through the waste water after 1 processing of the 1st grade of Aerobic Pond certainly through the 1st grade of Dynamic Membrane 5,7, the 1 grades of anaerobic pond 6 bottom spoil disposals of the 1st grade of whipping appts (in Fig. 1, representing with mark C) are set in the 1st grade of anaerobic pond 6; The temperature of said the 1st grade of anaerobic pond 6 can be 15～35 ℃, and the stirring velocity of said the 1st grade of whipping appts 7 can be 60～200r/min.
3) flow into the 2nd grade of Aerobic Pond 9 through the waste water after 6 processing of the 1st grade of anaerobic pond certainly through the 2nd grade of Dynamic Membrane 8; The 2nd grade of Aerobic Pond 9 inside the 2nd grade of boring aeration pipe 10 is housed; By air 3 blast aerations, the 2nd grade of Aerobic Pond 9 bottom spoil disposals (in Fig. 1, representing) with mark C; Said the 2nd grade of Aerobic Pond 9 can be to move under 10～35 ℃ of conditions in temperature, and said aeration rate can be controlled in 0.5～5L/min, and the dissolved oxygen in the 2nd grade of Aerobic Pond 9 can be DO >=2.0mg/L.
4) flow into the 2nd grade of anaerobic pond 12 through the waste water after 9 processing of the 2nd grade of Aerobic Pond certainly through 3rd level Dynamic Membrane 11; The 2nd grade of whipping appts 13 is set in the 2nd grade of anaerobic pond 12; The 2nd grade of anaerobic pond 12 bottom spoil disposals (in Fig. 1, representing with mark C), the treating water after up to standard is discharged by the water outlet B of the 2nd grade of anaerobic pond 12.The temperature of said the 2nd grade of anaerobic pond 12 can be 15～35 ℃, and the stirring velocity of said the 2nd grade of whipping appts 13 can be 60～150r/min.
Said the 1st boring aeration pipe 2 and the 2nd boring aeration pipe 10 all can adopt the core aeration first-class.
Said the 1st Dynamic Membrane the 5, the 2nd Dynamic Membrane 8 and the 3rd Dynamic Membrane 11 all can adopt industrial filter cloth film etc.; The filter cloth aperture of said industrial filter cloth film can be 10～100 μ m, and said industrial filter cloth film can be selected from least a in the long fine filter cloth film of terylene short fiber filter cloth film, terylene, polyvinyl filter cloth film, the polypropylene fibre filter cloth film etc.
The waste water type is a sewage.Water inlet COD concentration is 352mg/L; According to the water inlet organic loading; Make sewage successively in the 1st grade of Aerobic Pond 1, the 1st grade of Dynamic Membrane 5, the 1st grade of anaerobic pond 6, the 2nd grade of Dynamic Membrane 8, the 2nd grade of Aerobic Pond 9,3rd level Dynamic Membrane 11 and the 2nd grade of anaerobic pond 12 biodegrades; Measure in the different degradation times indexs such as the COD of water body, SS, DO, pH value, temperature in each pond, wherein effluent COD concentration is 15mg/L, and the COD clearance is 95.7%.
Similar with embodiment 1; Its difference is that into water COD concentration is 408mg/L; According to the water inlet organic loading, make sewage successively in the 1st grade of Aerobic Pond 1, the 1st grade of Dynamic Membrane 5, the 1st grade of anaerobic pond 6, the 2nd grade of Dynamic Membrane 8, the 2nd grade of Aerobic Pond 9,3rd level Dynamic Membrane 11 and the 2nd grade of anaerobic pond 12 biodegrades, measure in the different degradation times indexs such as the COD of water body, SS, DO, pH value, temperature in each pond; Wherein effluent COD concentration is 22mg/L, and the COD clearance is 94.6%.
Similar with embodiment 1; Its difference is that into water COD concentration is 456mg/L; According to the water inlet organic loading, make sewage successively in the 1st grade of Aerobic Pond 1, the 1st grade of Dynamic Membrane 5, the 1st grade of anaerobic pond 6, the 2nd grade of Dynamic Membrane 8, the 2nd grade of Aerobic Pond 9,3rd level Dynamic Membrane 11 and the 2nd grade of anaerobic pond 12 biodegrades, measure in the different degradation times indexs such as the COD of water body, SS, DO, pH value, temperature in each pond; Wherein effluent COD concentration is 28mg/L, and the COD clearance is 93.8%.
Embodiment 4
Similar with embodiment 1; Its difference is that the waste water type is a dyeing waste water; Water inlet COD concentration is 1520mg/L; According to the water inlet organic loading, make dyeing waste water successively in the 1st grade of Aerobic Pond 1, the 1st grade of Dynamic Membrane 5, the 1st grade of anaerobic pond 6, the 2nd grade of Dynamic Membrane 8, the 2nd grade of Aerobic Pond 9,3rd level Dynamic Membrane 11 and the 2nd grade of anaerobic pond 12 biodegrades, measure in the different degradation times indexs such as the COD of water body, SS, DO, pH value, temperature in each pond; Wherein effluent COD concentration is 85mg/L, and the COD clearance is 94.4%.
Similar with embodiment 4; Its difference is that into water COD concentration is 1782mg/L; According to the water inlet organic loading, make dyeing waste water successively in the 1st grade of Aerobic Pond 1, the 1st grade of Dynamic Membrane 5, the 1st grade of anaerobic pond 6, the 2nd grade of Dynamic Membrane 8, the 2nd grade of Aerobic Pond 9,3rd level Dynamic Membrane 11 and the 2nd grade of anaerobic pond 12 biodegrades, measure in the different degradation times indexs such as the COD of water body, SS, DO, pH value, temperature in each pond; Wherein effluent COD concentration is 92mg/L, and the COD clearance is 94.8%.
Similar with embodiment 4; Its difference is that into water COD concentration is 2246mg/L; According to the water inlet organic loading, make dyeing waste water successively in the 1st grade of Aerobic Pond 1, the 1st grade of Dynamic Membrane 5, the 1st grade of anaerobic pond 6, the 2nd grade of Dynamic Membrane 8, the 2nd grade of Aerobic Pond 9,3rd level Dynamic Membrane 11 and the 2nd grade of anaerobic pond 12 biodegrades, measure in the different degradation times indexs such as the COD of water body, SS, DO, pH value, temperature in each pond; Wherein effluent COD concentration is 98mg/L, and the COD clearance is 95.6%.
The sewage of embodiment 1～6 and treatment of dyeing wastewater effect are seen table 1.
Table 1 sewage and treatment of dyeing wastewater effect
Claims (10)
1. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic is characterized in that may further comprise the steps:
1) raw wastewater gets into the 1st grade of Aerobic Pond, the 1st grade of Aerobic Pond inside the 1st grade of boring aeration pipe is housed, by the blast aeration of air outside compressor, and with spinner-type flowmeter control aeration rate, the 1st grade of Aerobic Pond bottom spoil disposal;
2) flow into the 1st grade of anaerobic pond through the waste water after the 1st grade of Aerobic Pond processing certainly through the 1st grade of Dynamic Membrane, the 1st grade of whipping appts is set in the 1st grade of anaerobic pond, the 1st grade of anaerobic pond bottom spoil disposal;
3) flow into the 2nd grade of Aerobic Pond through the waste water after the 1st grade of anaerobic pond processing certainly through the 2nd grade of Dynamic Membrane, the 2nd grade of boring aeration pipe is housed the 2nd grade of Aerobic Pond inside, by the air blast aeration, the 2nd grade of Aerobic Pond bottom spoil disposal;
4) waste water after handling through the 2nd grade of Aerobic Pond from flowing into the 2nd grade of anaerobic pond, is provided with the 2nd grade of whipping appts through the 3rd level Dynamic Membrane in the 2nd grade of anaerobic pond, the 2nd grade of anaerobic pond bottom spoil disposal, and the treating water after up to standard is discharged by the water outlet of the 2nd grade of anaerobic pond.
2. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 1), and said the 1st grade of Aerobic Pond is to be to move under 10～35 ℃ of conditions in temperature.
3. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 1) said aeration rate is controlled at 0.5～5L/min, and the dissolved oxygen in the 1st grade of Aerobic Pond is DO >=2.0mg/L.
4. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 2) in, the temperature of said the 1st grade of anaerobic pond is 15～35 ℃; The stirring velocity of said the 1st grade of whipping appts can be 60～200r/min.
5. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 3), and said the 2nd grade of Aerobic Pond is to be to move under 10～35 ℃ of conditions in temperature.
6. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 3) said aeration rate is controlled at 0.5～5L/min, and the dissolved oxygen in the 2nd grade of Aerobic Pond is DO >=2.0mg/L.
7. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 4) the temperature of said the 2nd grade of anaerobic pond is 15～35 ℃, and the stirring velocity of said the 2nd grade of whipping appts can be 60～150r/min.
8. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that in step 2) and 3) in, said the 1st boring aeration pipe and the 2nd boring aeration pipe all adopt the core aeration head.
9. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that said Dynamic Membrane adopts the industrial filter cloth film, and the filter cloth aperture of said industrial filter cloth film can be 10～100 μ m.
10. the method for the close-coupled processing organic waste water of Dynamic Membrane anaerobic-aerobic as claimed in claim 1 is characterized in that said industrial filter cloth film is selected from least a in the long fine filter cloth film of terylene short fiber filter cloth film, terylene, polyvinyl filter cloth film, the polypropylene fibre filter cloth film.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105152331A (en) * | 2015-08-21 | 2015-12-16 | 南京白云化工环境监测有限公司 | Anaerobic-aerobic integrated sewage treatment device |
| CN106145569A (en) * | 2014-10-24 | 2016-11-23 | 吴小再 | A kind of method of work of the Multistage settling processing system of paper waste |
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| KR20040031894A (en) * | 2002-10-07 | 2004-04-14 | 주식회사 아이이아이 | The Waste disposal system |
| CN101333038A (en) * | 2007-06-28 | 2008-12-31 | 同济大学 | Anaerobic dynamic film bio sewage treating process |
| CN101712522A (en) * | 2009-08-17 | 2010-05-26 | 仲恺农业工程学院 | River sewage and urban sewage treatment technology capable of greatly reducing sludge amount |
| CN101851043A (en) * | 2010-02-04 | 2010-10-06 | 同济大学 | Integrated air-lift loop dynamic membrane bioreactor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20040031894A (en) * | 2002-10-07 | 2004-04-14 | 주식회사 아이이아이 | The Waste disposal system |
| CN101333038A (en) * | 2007-06-28 | 2008-12-31 | 同济大学 | Anaerobic dynamic film bio sewage treating process |
| CN101712522A (en) * | 2009-08-17 | 2010-05-26 | 仲恺农业工程学院 | River sewage and urban sewage treatment technology capable of greatly reducing sludge amount |
| CN101851043A (en) * | 2010-02-04 | 2010-10-06 | 同济大学 | Integrated air-lift loop dynamic membrane bioreactor |
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| CN106145569A (en) * | 2014-10-24 | 2016-11-23 | 吴小再 | A kind of method of work of the Multistage settling processing system of paper waste |
| CN105152331A (en) * | 2015-08-21 | 2015-12-16 | 南京白云化工环境监测有限公司 | Anaerobic-aerobic integrated sewage treatment device |
| CN105152331B (en) * | 2015-08-21 | 2018-03-13 | 南京白云化工环境监测有限公司 | A kind of anaerobic aerobic integratedization sewage-treatment plant |
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Effective date of registration: 20160721 Address after: 361000 Fujian city of Xiamen province Chinese (Fujian) Xiamen Xiangyu Road area Free Trade Zone No. 97 Xiamen international shipping center D 8 storey building 03 unit A two Patentee after: Xiamen Chuang Jie environmental protection technology Co., Ltd. Address before: Lotus Road, Siming District of Xiamen city in Fujian province 361000 unit 5-7 No. 179 Patentee before: Xiamen Shenlv Environmental Protection Technology Co., Ltd. |
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Effective date of registration: 20210422 Address after: Unit P04, 7th floor, No.8, Xinfeng 2nd Road, torch Park, torch hi tech Zone, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen huankang Environmental Protection Technology Co.,Ltd. Address before: 361000 Fujian city of Xiamen province Chinese (Fujian) Xiamen Xiangyu Road area Free Trade Zone No. 97 Xiamen international shipping center D 8 storey building 03 unit A two Patentee before: Xiamen Chuang Jie environmental protection technology Co.,Ltd. |
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