CN102874920B - External component anaerobic membrane bioreactor and waste water purification process thereof - Google Patents
External component anaerobic membrane bioreactor and waste water purification process thereof Download PDFInfo
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- CN102874920B CN102874920B CN201210385768.6A CN201210385768A CN102874920B CN 102874920 B CN102874920 B CN 102874920B CN 201210385768 A CN201210385768 A CN 201210385768A CN 102874920 B CN102874920 B CN 102874920B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention provides an external component anaerobic membrane bioreactor and a waste water purification process thereof. The waste water purification process includes that a mixed liquid in an anaerobic tank is pumped into a ceramic internal pressure pipe type ultrafiltration membrane through a pump for a cross flow filtration, the mixed liquid contains anaerobic bacteria and diatomaceous earth, under the action of pressure difference, clear water is permeated outwards through the ceramic internal pressure pipe type ultrafiltration membrane and is led out, and a concentration mixed liquid reserved in the ceramic internal pressure pipe type ultrafiltration membrane is taken back to the anaerobic tank through a cross flow. Compared with anaerobic membrane bioreactors in prior art, the external component anaerobic membrane bioreactor has the advantages that during operating, a certain amount of the diatomaceous earth is added into the mixed liquid, consequently the scouring and washing effects on the inner wall of the ceramic internal pressure pipe type ultrafiltration membrane can be strengthened, deposition and pollution of impurities to the inner wall of the ceramic internal pressure pipe type ultrafiltration membrane can be effectively reduced, the permeation flux is stabilized, simultaneously the cross flow speed can be reduced, the energy consumption is lowered, the filtering period of the ceramic internal pressure pipe type ultrafiltration membrane is prolonged, and the chemical cleaning frequency is reduced.
Description
Technical field
The present invention relates to field of waste water treatment, particularly a kind of external placed type assembly anaerobic membrane bioreactor and process for purifying waste water thereof.
Background technology
Anaerobe reaction is the common process in sewage disposal, it has the advantages such as floor space is little, technique is simple, operation energy consumption is low, sludge yield is low, the organic pollution materials of some difficult degradations of degradable, and the biogas produced in anaerobic process can as energy recycling, it is a kind for the treatment of technology having the multiple advantage of environment and economy benefit concurrently, therefore, be widely used in field of waste water treatment, especially the wastewater treatment of higher concentration organic pollutant.
External placed type anaerobic membrane bioreactor is the one in current anaerobic membrane bioreactor.Specifically guide to outside reaction tank by anaerobic treatment water outlet, enter high speed cross flow filter in film pipe by inner pressed, leach clear water and ooze out film pipe, active sludge and concentrated solution are stayed in film pipe, are then back in reaction tank.The advantage of this technology is that processing flux is higher, facility compact.But, there is following defect:
In the process of cleaning film pipe, need current continual rinsing for some time at a high speed, energy consumption is large, further, impurity large on tube wall can only be washed, and cannot be washed at the impurity that fenestra is medium and small, of long duration, can fenestra be blocked, thus affect filter effect and the filtration efficiency of film pipe, even affect the work-ing life of film pipe.
Summary of the invention
The object of the invention is to provide a kind of external placed type assembly anaerobic membrane bioreactor, to solve external placed type anaerobic membrane bioreactor of the prior art in the process of cleaning film pipe, need current continual rinsing for some time at a high speed, energy consumption is large, and, impurity large on tube wall can only be washed, and the little impurity in fenestra cannot be washed, of long duration, can fenestra be blocked, thus affect filter effect and the filtration efficiency of film pipe, even affect the technical matters in the work-ing life of film pipe.
Another object of the present invention is to the process for purifying waste water that a kind of external placed type assembly anaerobic membrane bioreactor is provided, to solve external placed type anaerobic membrane bioreactor of the prior art in the process of cleaning film pipe, need current continual rinsing for some time at a high speed, energy consumption is large, and, impurity large on tube wall can only be washed, and the little impurity in fenestra cannot be washed, of long duration, fenestra can be blocked, thus affect filter effect and the filtration efficiency of film pipe, even affect the technical matters in the work-ing life of film pipe.
The object of the invention is achieved through the following technical solutions:
A process for purifying waste water for external placed type assembly anaerobic membrane bioreactor, comprises the following steps:
By the mixed solution in anaerobic pond by being pumped into pressure-pipe type ultra-filtration membrane cross flow filter in pottery, containing anerobe and diatomite in described mixed solution, under pressure difference effect, clear water is exported to exosmosis through pressure-pipe type ultra-filtration membrane in described pottery, and the concentrated mixed solution stayed in pottery in pressure-pipe type ultra-filtration membrane is back to described anaerobic pond by cross-flow band.
Preferably, in described mixed solution, diatomaceous content is 5g/L-20g/L.
Preferably, in described mixed solution, diatomaceous content is 10g/L.
Preferably, also comprise and the step of back flushing is carried out to pressure-pipe type ultra-filtration membrane in described pottery, often run and filter back flushing after 20-60 minute once, backwashing time is 30-60s.
A kind of external placed type assembly anaerobic membrane bioreactor, comprise anaerobic pond, diatomite throwing device and tubular membrane component, pressure-pipe type ultra-filtration membrane in some potteries is provided with in described tubular membrane component, the water outlet of described anaerobic pond is connected with the water-in of pressure-pipe type ultra-filtration membrane in described pottery, and the water outlet of described diatomite throwing device is connected with the water-in of pressure-pipe type ultra-filtration membrane in described pottery.
Preferably, add diatomite by described diatomite throwing device, make diatomaceous content in waste water be 5g/L-20g/L.
Preferably, also comprise backwashing pump, described backwashing pump is connected with described tubular membrane component.
Preferably, inhalant region, packing area, exhalant region and collecting methane district is followed successively by from down to up in described anaerobic pond, the sidewall of inhalant region is provided with water-in, the water distributor with sludge agitation function is provided with in described inhalant region, described water outlet is located on the sidewall of exhalant region, and described collecting methane district is provided with venting port.
Compared with prior art, the present invention has following advantage:
External placed type assembly anaerobic membrane bioreactor of the present invention operationally, owing to adding a certain amount of diatomite in mixed solution, the washing away of inwall to pressure-pipe type ultra-filtration membrane in pottery, cleanup action can be strengthened, effectively can reduce the inwall deposition of impurity pressure-pipe type ultra-filtration membrane in pottery and pollute, steady seepage flux, can reduce the flow velocity of cross-flow simultaneously, saves energy consumption, and extend the filtration cycle of pressure-pipe type ultra-filtration membrane in pottery, reduce matting frequency.In addition, also can improve filter effect and the filtration efficiency of pressure-pipe type ultra-filtration membrane in pottery, thus extend the work-ing life of pressure-pipe type ultra-filtration membrane in pottery.
Accompanying drawing explanation
Fig. 1 is the structural representation of external placed type assembly anaerobic membrane bioreactor of the present invention;
Fig. 2 is the schema of the process for purifying waste water of external placed type assembly anaerobic membrane bioreactor of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail.
Refer to Fig. 1, external placed type assembly anaerobic membrane bioreactor of the present invention, comprise anaerobic pond 1, diatomite throwing device 2 and tubular membrane component, pressure-pipe type ultra-filtration membrane 4 in some potteries is provided with in tubular membrane component, the water outlet of anaerobic pond 1 is connected with the water-in of pressure-pipe type ultra-filtration membrane 4 in pottery, and the water outlet of diatomite throwing device 2 is connected with the water-in of pressure-pipe type ultra-filtration membrane 4 in pottery.Wherein, be followed successively by inhalant region, packing area, exhalant region and collecting methane district in anaerobic pond 1 from down to up, the sidewall of inhalant region is provided with water-in, in inhalant region, be provided with the water distributor with sludge agitation function, water outlet is located on the sidewall of exhalant region, and collecting methane district is provided with venting port.
Diatomite throwing device 2, for being joined by diatomite in the waste water in pottery before pressure-pipe type ultrafiltration membrance filter, makes diatomaceous content in waste water be 5g/L-20g/L, is preferably 10g/L.
External placed type assembly anaerobic membrane bioreactor of the present invention also comprises backwashing pump (not drawing in figure), and for carrying out back flushing to pressure-pipe type ultra-filtration membrane in pottery, backwashing pump is connected with tubular membrane component.
Refer to Fig. 2, present invention also offers a kind of process for purifying waste water of external placed type assembly anaerobic membrane bioreactor, detailed step is as follows:
(1) pending waste water enters in anaerobic pond 1, contacted with mud by the water distributor of inhalant region, then packing area is slow transitted through, to be adsorbed by anaerobic sludge at packing area waste water and degrade, produce biogas, afterwards, waste water enters exhalant region, the biogas produced enters collecting methane district, and the biogas in collecting methane district is collected into biogas air collector through intake ducting after venting port is derived;
(2) waste water in exhalant region enters pressure-pipe type ultra-filtration membrane 4 in pottery after fine fack filters, simultaneously, diatomite in diatomite throwing device 2 also enters pressure-pipe type ultra-filtration membrane in pottery, makes diatomaceous content in the waste water before filtration be 5g/L-20g/L, is preferably 10g/L;
(3) under pressure difference effect, clear water is exported to exosmosis through pressure-pipe type ultra-filtration membrane in pottery, is collected in clean water basin, and the concentrated mixed solution stayed in pottery in pressure-pipe type ultra-filtration membrane is back to anaerobic pond by cross-flow band;
(4) in pottery, pressure-pipe type ultra-filtration membrane often runs 20-60 minute after (be preferably 30 minutes), and the clear water (or tap water) in clean water basin introduces through backwashing pump 3 back flushing in tubular membrane group, pressure-pipe type ultra-filtration membrane in ceramic being carried out to 30-60s; Clear water in clean water basin also can supply water to subsequent treatment process.
External placed type assembly anaerobic membrane bioreactor of the present invention operationally, owing to adding a certain amount of diatomite in mixed solution, the washing away of inwall to pressure-pipe type ultra-filtration membrane in pottery, cleanup action can be strengthened, effectively can reduce the inwall deposition of impurity pressure-pipe type ultra-filtration membrane in pottery and pollute, steady seepage flux, can reduce the flow velocity of cross-flow simultaneously, saves energy consumption, and extend the filtration cycle of pressure-pipe type ultra-filtration membrane in pottery, reduce matting frequency.In addition, also can improve filter effect and the filtration efficiency of pressure-pipe type ultra-filtration membrane in pottery, thus extend the work-ing life of pressure-pipe type ultra-filtration membrane in pottery.
Be only several specific embodiments of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of, all should drops in the protection domain of the application.
Claims (6)
1. a process for purifying waste water for external placed type assembly anaerobic membrane bioreactor, is characterized in that, comprises the following steps:
By the mixed solution in anaerobic pond by being pumped into pressure-pipe type ultra-filtration membrane cross flow filter in pottery, containing anerobe and diatomite in described mixed solution, in described mixed solution, diatomaceous content is 5g/L-20g/L, under pressure difference effect, clear water is exported to exosmosis through pressure-pipe type ultra-filtration membrane in described pottery, and the concentrated mixed solution stayed in pottery in pressure-pipe type ultra-filtration membrane is back to described anaerobic pond by cross-flow band.
2. the process for purifying waste water of a kind of external placed type assembly anaerobic membrane bioreactor as claimed in claim 1, it is characterized in that, in described mixed solution, diatomaceous content is 10g/L.
3. the process for purifying waste water of a kind of external placed type assembly anaerobic membrane bioreactor as claimed in claim 1, it is characterized in that, also comprise and the step of back flushing is carried out to pressure-pipe type ultra-filtration membrane in described pottery, often run and filter back flushing after 20-60 minute once, backwashing time is 30-60s.
4. an external placed type assembly anaerobic membrane bioreactor, it is characterized in that, comprise anaerobic pond, diatomite throwing device and tubular membrane component, pressure-pipe type ultra-filtration membrane in some potteries is provided with in described tubular membrane component, the water outlet of described anaerobic pond is connected with the water-in of pressure-pipe type ultra-filtration membrane in described pottery, the water outlet of described diatomite throwing device is connected with the water-in of pressure-pipe type ultra-filtration membrane in described pottery, add diatomite by described diatomite throwing device, make diatomaceous content in waste water be 5g/L-20g/L.
5. a kind of external placed type assembly anaerobic membrane bioreactor as claimed in claim 4, it is characterized in that, also comprise backwashing pump, described backwashing pump is connected with described tubular membrane component.
6. a kind of external placed type assembly anaerobic membrane bioreactor as claimed in claim 4, it is characterized in that, inhalant region, packing area, exhalant region and collecting methane district is followed successively by from down to up in described anaerobic pond, the sidewall of inhalant region is provided with water-in, the water distributor with sludge agitation function is provided with in described inhalant region, described water outlet is located on the sidewall of exhalant region, and described collecting methane district is provided with venting port.
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| CN201210385768.6A CN102874920B (en) | 2012-10-12 | 2012-10-12 | External component anaerobic membrane bioreactor and waste water purification process thereof |
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| CN102874920B true CN102874920B (en) | 2015-03-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105776654A (en) * | 2014-12-26 | 2016-07-20 | 青岛海尔智能技术研发有限公司 | Water purifying device and control method thereof |
| WO2018076014A1 (en) * | 2016-10-21 | 2018-04-26 | Aquatech International, Llc | Method of treating high strength wastewater by anaerobic bio reactor |
| CN110563269A (en) * | 2019-09-17 | 2019-12-13 | 上海济旦水科技有限公司 | Sewage treatment device and method for treating sewage by using microalgae and producing microalgae by using sewage |
| CN111056632A (en) * | 2019-12-17 | 2020-04-24 | 福建中盟环保科技有限公司 | Anaerobic external tubular ultrafiltration membrane bioreactor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746848A (en) * | 2008-12-12 | 2010-06-23 | 同济大学 | Dynamic film separating method for processing sewage by using biological diatomite |
| CN102153251A (en) * | 2011-05-11 | 2011-08-17 | 上海膜达克环保工程有限公司 | External anaerobic membrane bioreactor and waste water purification technology thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS51109286A (en) * | 1975-03-22 | 1976-09-28 | Hitachi Ltd | |
| JPH04126528A (en) * | 1990-09-17 | 1992-04-27 | Ebara Infilco Co Ltd | Method for cleaning hollow-fiber membrane filter device the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746848A (en) * | 2008-12-12 | 2010-06-23 | 同济大学 | Dynamic film separating method for processing sewage by using biological diatomite |
| CN102153251A (en) * | 2011-05-11 | 2011-08-17 | 上海膜达克环保工程有限公司 | External anaerobic membrane bioreactor and waste water purification technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 投加硅藻土对平板膜通量的影响;杨德立 等;《水处理技术》;20050731;第31卷(第7期);第38-41页 * |
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