CN1156410C - Split type film biological reactor and water treatment method - Google Patents
Split type film biological reactor and water treatment method Download PDFInfo
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- CN1156410C CN1156410C CNB01123900XA CN01123900A CN1156410C CN 1156410 C CN1156410 C CN 1156410C CN B01123900X A CNB01123900X A CN B01123900XA CN 01123900 A CN01123900 A CN 01123900A CN 1156410 C CN1156410 C CN 1156410C
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The present invention provides a split type membrane bioreactor which comprises a grid or a screen mesh (2), a regulation tank (3), the bioreactor (6) and a membrane filter chamber (20) which are connected orderly. The present invention is characterized in that the bottom of the membrane filter chamber (20) is provided with a foundation or a bracket (24) so as to align static levels of the membrane filter chamber (20) and the bioreactor (6), and the installation depth of an air blowing pipe (7) and a membrane flushing air blowing pipe (22) in the bioreactor (6) and the membrane filter chamber (20) lies in a water layer whose water depth range is from the water surface to 2.5 m. The membrane bioreactor of the present invention has the advantage of low operation energy consumption.
Description
Technical field
The invention belongs to field of membrane bioreactor technology, particularly detachable membrane bioreactor.
Background technology
A kind of known detachable membrane bioreactor is the cross-current type membrane bioreactor system, is made up of bio-reactor unit and cross-current type membrane separation apparatus, mainly has the high technical problem of unit water treatment energy consumption.In order to keep stable permeability rate, the cross-current type membrane separation apparatus needs higher face stream, to produce the thickness that bigger shearing force or turbulent flows limit cake layer.Higher face stream needs bigger water circulating pump to provide, and the operating pressure that pump provides is usually at 100-150kPa, and the ratio of the quantity of circulating water of membrane separation apparatus and permeable amount is up to 100-600: 1, and circulating water flow speed is generally between 1-7m/s, generally greater than 2m/s.The shearing force that high like this operating pressure and flow velocity produce causes the high problem of cross-current type membrane separation apparatus operation energy consumption, handles unit water yield processing energy consumption and is about 3.0-5.5kWh/m
3, be traditional activated sludge process unit's water treatment energy consumption 10-15 approximately times.A large amount of energy consumptions are converted into heat energy, and water temperature raises in the membrane separation apparatus, needs cooling apparatus sometimes.(Fan Yaobo etc., environmental science, 1995,16 (5): 79-81; Fan Yaobo etc., ACTA Scientiae Circumstantiae, 1997,17 (1): 68-74; Zheng Xiang etc., 2000, Techniques and Equipment for Environmental Pollution Control, Vol.1:(5), 12-19).
Another kind of known film submergence detachable membrane bioreactor is made up of bio-reactor unit and submerged membrane separator unit, and the air-blowing pressure that washes away membrane module in the membrane separation apparatus unit is generally at 30-50kPa, and its energy consumption is generally at 1-2kWh/m
3, still be much higher than common biochemical processing method (ArnoldZilverentant, Water 21, November/December, 1999,29～31; Hadi Husain, Pierre Cote, WQI March/April, 1999,19-22).
Summary of the invention
The objective of the invention is in order to overcome the high shortcoming of known detachable membrane bioreactor operation energy consumption, create and adopt shoaling layer air-blowing carrying out film to wash in a kind of membrane separation apparatus unit, can effectively reduce unit water treatment energy consumption, thereby reduce the detachable membrane bioreactor technology of unit water treatment expense.Make membrane bioreactor become a kind of efficient, practical, economical water treatment and waste water reclaiming technology.
Detachable membrane bioreactor of the present invention comprises grid and screen cloth, equalizing tank, bio-reactor, membrane filtration pond, film separation unit, the water tank etc. of purifying waste water, referring to Fig. 1.It is characterized in that: former water (1) enters equalizing tank (3) through grid or screen cloth (2); Enter bio-reactor (6) through feeding engine (4) lifting through upper hose (5); Have in the bio-reactor (6) to the biological tank aspiration tube (7) of active sludge intermixture air-blowing oxygenation and stirring action and the flow deflector of vertically installing (8); The upper limb of flow deflector (8) is concordant with biological tank aspiration tube (7), and flow deflector (8) lower rim is apart from bottom 0.4-0.8 rice, and the effect of flow deflector (8) makes the active sludge in the bio-reactor realize the good reflux circulation in bio-reactor (6); The liquid of (6) in the bio-reactor, mix liquid as active sludge two backflow approach are arranged, the 1st approach: circulation tube (16), recycle pump (17) are (at this moment under the warp, circulation valve (18) is closed), enter membrane filtration pond (20) through upper circular tube (19), the pump around circuit pipe (23) through membrane filtration pond (20) returns bio-reactor (6) again; The 2nd approach: (6) interior liquid in the bio-reactor, mix liquid as active sludge, warp circulation tube (16), circulation valve (18), upper circular tube (19) down enters membrane filtration pond (20), pump around circuit pipe (23) through membrane filtration pond (20) returns bio-reactor (6) again, at this moment, recycle pump (17) cuts out; Can satisfy fully at the 2nd circulation approach under the condition of internal circulating load requirement, preferentially use this circulation approach; Height is 0.5～3.5 meter at the bottom of the apex distance pond, pond in membrane filtration pond (20), 0.2～3.0 meter of the depth of water of membrane filtration pond (20); The hydrostatic level in membrane filtration pond (20) is concordant in the hydrostatic level that stops same bio-reactor (6) under the condition of air-blowing; The hydrostatic level in membrane filtration pond (20) way concordant with the hydrostatic level of bio-reactor (6) is that basis or support (24) are set in the bottom of membrane filtration pond (20); The height on membrane filtration pond support or basis (24) is determined by the difference of water depth in bio-reactor (6) water level and membrane filtration pond (20); Film separation unit (21) is housed in the membrane filtration pond (20), and film separation unit (21) is rearranged by several membrane modules as shown in Figure 2; Film separation unit (21) is installed on the top of interior Chi Shui in membrane filtration pond (20) or mud mixed liquid, membrane module shown in Figure 2 is from the downward laying of the water surface, the last header (31) that is membrane module just is submerged under the water surface, and the following header (32) of membrane module is looked membrane module length and is submerged in the water layer in the water surface to 2.5 meter depth of water scope; Film silk (33) two ends of Fig. 2 membrane module are bonded between the following header (32) of the last header (31) of membrane module and membrane module; The film flushing aspiration tube (22) of carrying out flushing membrane silk (33) is equipped with in the bottom of film separation unit (21); Biological tank aspiration tube (7) and film flushing aspiration tube (22) are perforated pipe, it looks following header (32) submergence of membrane module at bio-reactor (6) and the fitting depth in membrane filtration pond (20), be installed in the water layer in the water surface to 2.5 meter depth of water scope, and fitting depth is identical; Air is fed the biological tank aspiration tube (7) of bio-reactor (6) through biological air door (12), biological air flowmeter (10), biological tank blast main (11) by pneumatic pump (9); Biological tank aspiration tube (7) is except the effect of oxygenation, and the active sludge that stirs biological tank in addition makes it keep the effect that suspends; The air that carries out flushing membrane silk (33) feeds film flushing aspiration tube (22) by pneumatic pump (9) through film air door (13), film air flowmeter (14), membrane cisterna blast main (15); Film flushing aspiration tube (22) makes mixed solution form the round-robin effect between bio-reactor (6) and membrane filtration pond (20) except the effect that film cleans also has to mixed solution oxygenation, airlift mixed solution; Purify waste water by the water level and the waterhead of purification water pipe (25) of membrane module top shown in Figure 2 at clear water tanks (30) water outlet place, from film separation unit (21), by through purifying water pipe (25), extrude certainly and flow to into clear water tanks (30) through the valve of purifying waste water (27), the flow meter (26) of purifying waste water; When purifying waste water when extruding the flowing water flow and can not meet the demands, close gravity flow valve (28), open clarified water pump (29), making purifies waste water enters cleaned water tank (30) by suction.
Principle of work of the present invention is to reduce the depth of water of top, membrane separation apparatus unit in the detachable membrane bioreactor greatly, promptly reduce aspiration tube when the flushing membrane assembly the head that must overcome, effectively reduce the film flushing pressure and reach the purpose that reduces film flushing energy consumption thereby reach.The air-blowing pressure that washes away membrane module can be reduced to 2.5 meters depth of waters to the head scope between the water surface.As the length when membrane module is 0.3 meter, and membrane module is laid downwards from the water surface, and the following header of membrane module is in 0.3 meter depth of water place from the underwater, and the head that will overcome during air-blowing perforated pipe flushing membrane is about 0.3 meter; And for example, the length of membrane module is 0.5 meter, and membrane module is laid downwards from the water surface, and the following header of membrane module is in 0.5 meter depth of water place from the underwater, and the head that will overcome during air-blowing perforated pipe flushing membrane is about 0.5 meter.For another example, the length of membrane module is 1 meter, and membrane module is laid downwards from the water surface, and the following header of membrane module is in 1 meter depth of water place from the underwater, and the head that will overcome during air-blowing perforated pipe flushing membrane is about 1 meter.By that analogy, the length of membrane module is 2 meters, and membrane module is laid downwards from the water surface, and the following header of membrane module is in 2 meters depth of water places from the underwater, and the head that will overcome during air-blowing perforated pipe flushing membrane is about 2 meters.Present technique limits membrane module length and is no more than 2.5 meters.
The characteristics of detachable membrane bioreactor of the present invention are: a membrane filtration pond (20) of separating setting with bio-reactor (6) 1, is arranged, and the film unit (21) in membrane filtration pond (20) carries out the film flushing by air-blowing in shoaling layer.With known film submergence detachable membrane bioreactor 1-2kWh/m
3Operation energy consumption compare because the present invention's air-blowing in shoaling layer washes film, even carrying out the film flushing under same air-blowing amount condition, less because of the pressure that air-blowing of the present invention must overcome, thereby the energy consumption of air-blowing flushing membrane is little.2, the big-and-middle bubble air-blowing device of employing is washed in the air-blowing of film, therefore can carry out the film flushing effectively, thereby a nearly step is reduced detachable membrane bioreactor unit's product water consumption effectively.3, the hydrostatic level of the hydrostatic level of bio-reactor (6) and membrane filtration pond (20) keeps a level, be beneficial to the waterpower circulation in bio-reactor (6) and membrane filtration pond (20), and maximum possible reduces the water cycle energy consumption.3, realize the construction of extensive membrane bioreactor water treatment system easily, break through the bottleneck that existing membrane Bio-reactor Technology water treatment applications is confined to middle and small scale.4, can make up with various types of bio-reactors, realize easily existing sewage biological treatment system is undergone technological transformation; And the biological respinse unit is not limited to activated sludge process, can be biomembrance process.As: oxidation ditch reactor, contact oxidation method reactor, biological filter etc.5, membrane module is easy to clean, changes and safeguards.
The present invention adopts the film filter technical scheme at shoaling layer air-blowing flushing membrane to reduce the pressure that washes away the membrane module air-blowing effectively, and the operating pressure (be make the permeable water pressure that is applied to the film both sides of film poor) of the air-blowing pressure that washes away membrane module and film has been realized effective the separation.Under the prerequisite that does not increase total air-blowing energy consumption, can improve the air-blowing intensity of film flushing, the backwash rate that can solve film submergence detachable membrane bioreactor film effectively is weak, the heavy contamination of film, the film permeability rate is lower and be difficult to stable problem.Broken through known detachable membrane bioreactor unit water treatment energy consumption height, the water treatment scale mostly is middle and small scale, the breakthrough scale should not surpass the restriction of ten thousand ton per days or hundreds of thousands of ton per day, makes the possibility that turns into that realizes extensive membrane bioreactor water treatment system.Membrane module places the film filter of shoaling layer to bring convenience for the maintenance and the cleaning of film, can lower the construction costs of membrane bioreactor.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the technical scheme of inventing is further described.
Figure 1 shows that detachable membrane bioreactor water technology process flow sheet of the present invention.Wherein: 1 former water, 2 grids and screen cloth, 3 equalizing tanks, 4 feeding engines, 5 upper hoses, 6 bio-reactors, 7 biological tank aspiration tube, 8 flow deflectors, 9 pneumatic pumps, 10 biological air flowmeter, 11 biological tank blast mains, 12 biological air doors, 13 film air doors, 14 film air flowmeter, 15 membrane cisterna blast mains, 16 times circulation tubes, 17 recycle pumps, 18 circulation valves, 19 upper circular tubes, 20 membrane filtration ponds, 21 film separation units, 22 films flushing aspiration tube, 23 pump around circuit pipes, 24 membrane filtration pond support or bases, 25 purify water pipe, the 26 flow meters of purifying waste water, 27 valves of purifying waste water, 28 gravity flow valves, 29 clarified water pumps, 30 clear water tanks.
Fig. 2 is the synoptic diagram of the used membrane module of detachable membrane bioreactor water technology of the present invention.Wherein, header on 31,32 times headers, 33 film silks.
Embodiment
Embodiment 1
A scale is 24m
3/ d residential district reusing sewage engineering adopts known cross-current type split membrane Bio-reactor Technology and the present invention membrane Bio-reactor Technology in the flushing of shoaling layer air-blowing film respectively.
Known cross-flow detachable membrane bioreactor: film separation unit crossflow velocity 3.6m/s, the energy consumption of handling the unit water yield is 3.0kWh/m
3
Adopt detachable membrane bioreactor technical scheme of the present invention, promptly in the membrane filtration pond, adopt the detachable membrane bioreactor technology that the film flushing is carried out in air-blowing in the shoaling layer.3 meters of the bio-reactor depth of waters, membrane module length are 1m, and promptly last header (31) upper edge of membrane module is 1m to the distance of following header (32) lower edge of membrane module, 1 meter of the film separation unit air-blowing depth of water.Gas-water ratio is 40: 1, and promptly total air-blowing amount is 40m
3/ h, air-blowing pressure are 10kPa.Blower efficient is 0.44, and washing away the membrane module energy consumption is 0.30kWh/m
3, last water, purify water consumption 0.30kWh/m
3, the energy consumption of handling the unit water yield is 0.6kWh/m
3
A scale is 24m
3/ d residential district reusing sewage engineering adopts known submergence detachable membrane bioreactor technology and preliminary operation energy consumption analysis of detachable membrane bioreactor technology of the present invention and comparison respectively.
Known submergence detachable membrane bioreactor: bio-reactor depth of water 3m, membrane module length is 1m, promptly last header (31) upper edge of membrane module to the distance of following header (32) lower edge of membrane module is 1m.Gas-water ratio is 40: 1, and promptly total air-blowing amount is 40m
3/ h handles water yield 1m
3/ h, air-blowing pressure is about 30kPa, and air-blowing efficient is 0.44, and washing away the membrane module energy consumption is 0.70kWh/m
3, energy consumptions such as last water, purification water outlet are 0.3kWh/m
3, the energy consumption of handling the unit water yield is 1.0kWh/m
3
Adopt detachable membrane bioreactor technical scheme of the present invention, promptly in the membrane filtration pond, adopt the detachable membrane bioreactor technology that the film flushing is carried out in air-blowing in the shoaling layer.3 meters of the bio-reactor depth of waters, membrane module length are 1m, and promptly last header (31) upper edge of membrane module is 1m to the distance of following header (32) lower edge of membrane module, 1 meter of the film separation unit air-blowing depth of water.Gas-water ratio is 40: 1, and promptly total air-blowing amount is 40m
3/ h, air-blowing pressure are 10kPa.Blower efficient is 0.44, and washing away the membrane module energy consumption is 0.30kWh/m
3, energy consumption 0.30kWh/m such as last water, purification water outlet
3, the energy consumption of handling the unit water yield is 0.6kWh/m
3
A scale is 24m
3/ d residential district reusing sewage engineering adopts known submergence detachable membrane bioreactor technology and preliminary operation energy consumption analysis of detachable membrane bioreactor technology of the present invention and comparison respectively.
Known submergence detachable membrane bioreactor: bio-reactor depth of water 3m, membrane module length is 1m, promptly last header (31) upper edge of membrane module to the distance of following header (32) lower edge of membrane module is 1m.Gas-water ratio is 40: 1, and promptly total air-blowing amount is 40m
3/ h handles water yield 1m
3/ h, air-blowing pressure is about 30kPa, and air-blowing efficient is 0.44, and washing away the membrane module energy consumption is 0.70kWh/m
3, energy consumption 0.3kWh/m such as last water, purification water outlet
3, the energy consumption of handling the unit water yield is 1.0kWh/m
3
Adopt detachable membrane bioreactor technical scheme of the present invention, promptly in the membrane filtration pond, adopt the detachable membrane bioreactor technology that the film flushing is carried out in air-blowing in the shoaling layer.3 meters of the bio-reactor depth of waters are handled water yield 1m
3/ h, membrane module length is 0.5m, promptly last header (31) upper edge of membrane module is 0.5m to the distance of following header (32) lower edge of membrane module, 0.5 meter of the film separation unit air-blowing depth of water.Gas-water ratio is 80: 1, and promptly total air-blowing amount is 80m
3/ h, air-blowing pressure are 5kPa.Blower efficient is 0.44, and washing away the membrane module energy consumption is 0.25kWh/m
3, last water, purify water consumption 0.30kWh/m
3, the energy consumption of handling the unit water yield is 0.55kWh/m
3
Relatively draw: detachable membrane bioreactor technical scheme of the present invention, promptly adopt the detachable membrane bioreactor technology that the film flushing is carried out in air-blowing in the shoaling layer in the membrane filtration pond, the energy consumption of handling the unit water yield is not only than cross-flow detachable membrane bioreactor 3.0-5.5kWh/m
3Energy consumption low, also be lower than the operation energy consumption 1-2kWh/m of conventional submergence detachable membrane bioreactor
3
The unit sewage disposal can be hanged down 40-45% by the known submergence detachable membrane bioreactor of loss-rate, is cross-flow detachable membrane bioreactor 3.0-5.5kWh/m
3Thereby 1/7-1/13 can the unit's of effectively reducing water treatment expense, improve the economic and practical that this technology is used in water treatment.
Claims (6)
1. a detachable membrane bioreactor comprises continuous successively equalizing tank (3), bio-reactor (6) and membrane filtration pond (20); Wherein, the flow deflector (8) that biological tank aspiration tube (7) is housed in the bio-reactor (6) and vertically installs; Biological tank aspiration tube (7) is used for by pneumatic pump (9), biological tank blast main (11) bubbling air; Circulation tube (16) also is housed down on the bio-reactor (6), and circulation tube (16), recycle pump (17) or circulation valve (18), upper circular tube (19) enter membrane filtration pond (20) down to be used for the liquid warp; Membrane filtration pond (20) also communicates with bio-reactor (6) by pump around circuit pipe (23); The film separation unit of being made up of membrane module (21) is housed in the membrane filtration pond (20), and this membrane module is made up of the following header (32) and the film silk (33) of last header (31), membrane module; The film flushing aspiration tube (22) of carrying out flushing membrane silk (33) is equipped with in the bottom of described membrane module, and film flushing aspiration tube (22) is used for by pneumatic pump (9), membrane cisterna blast main (15) bubbling air; Film separation unit (21) communicates with clear water tanks (30) by purifying water pipe (25); It is characterized in that: the bottom of membrane filtration pond (20) is provided with basis or support (24); Make the hydrostatic level in membrane filtration pond (20) concordant with the hydrostatic level of bio-reactor (6); And make the mounting height of the mounting height of described biological tank aspiration tube (7) in bio-reactor (6) and described film flushing aspiration tube (22) in membrane filtration pond (20) identical, and be installed in the water layer in the water surface to 2.5 meter depth of water scope.
2. according to the described detachable membrane bioreactor of claim 1, it is characterized in that, grid or screen cloth (2) also are housed on equalizing tank (3); Biological air door (12) and biological air flowmeter (10) also are housed between pneumatic pump (9) and biological tank blast main (11); Film air door (13) and film air flowmeter (14) also are housed between pneumatic pump (9) and membrane cisterna blast main (15); Circulation valve (18) when closing the liquid in the bio-reactor (6) can enter membrane filtration pond 20 through upper circular tube 19 through down circulation tube (16), recycle pump (17), the pump around circuit pipe 23 through membrane filtration pond 20 returns bio-reactor (6) and circulates again; Mixed solution in the bio-reactor in (6) also can be through circulation tube (16), circulation valve (18), upper circular tube (19) enter membrane filtration pond (20) down, pump around circuit pipe (23) through membrane filtration pond (20) mode of returning bio-reactor (6) circulates again, when adopting this Recycle design, recycle pump (17) cuts out, can satisfy fully in this Recycle design under the condition of water cycle amount requirement, preferentially use this Recycle design; Film separation unit (21) is connected to and purifies water pipe (25), the valve of purifying waste water (27), the flow meter (26) of purifying waste water, and is connected to gravity flow valve (28) and clarified water pump (29) afterwards at the flow meter (26) of purifying waste water; Gravity flow valve (28) and clarified water pump (29) access in parallel clear water tanks (30); When purify waste water from film separation unit (21) by purify water pipe (25), the valve of purifying waste water (27), the flow meter (26) of purifying waste water, gravity flow valve (28) can flow into clear water tanks (30) certainly, and the water yield is when meeting the demands, clarified water pump (29) does not use; Can not certainly flow into clear water tanks (30) from film separation unit (21) by purification water pipe (25), the valve of purifying waste water (27), the flow meter (26) of purifying waste water, gravity flow valve (28) when purifying waste water, or the gravity flow water yield is can not satisfy the water yield and require the time, close gravity flow valve (28), use clarified water pump (29) to purify waste water and import clear water tanks (30).
3. detachable membrane bioreactor as claimed in claim 1 is characterized in that: height is 0.5～3.5 meter at the bottom of the apex distance pond, pond in described membrane filtration pond (20), and the depth of water of membrane filtration pond (20) is 0.2～3.0 meter.
4. detachable membrane bioreactor as claimed in claim 1 is characterized in that: described film separation unit (21) is rearranged by a plurality of membrane modules; Film separation unit (21) is installed on the top of the interior liquid in membrane filtration pond (20), in the scope of the water surface to 2.5 meter water depth; Membrane module is from the downward laying of the water surface of membrane filtration pond (20), and the last header (31) of membrane module just is submerged under the water surface, and the following header (32) of membrane module is submerged in the water layer in the water surface to 2.5 meter depth of water scope.
5. detachable membrane bioreactor as claimed in claim 1, it is characterized in that: described flow deflector (8) positioned vertical, flow deflector (8) upper limb mounting height is concordant with the mounting height of biological tank aspiration tube (7), and flow deflector (8) lower rim is apart from bio-reactor (6) bottom 0.4-0.8 rice.
6. detachable membrane bioreactor as claimed in claim 1 is characterized in that, the film that described film silk (33) adopts is ultra-filtration membrane or microfiltration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01123900XA CN1156410C (en) | 2000-12-15 | 2001-08-13 | Split type film biological reactor and water treatment method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00135703 | 2000-12-15 | ||
| CN00135703.4 | 2000-12-15 | ||
| CNB01123900XA CN1156410C (en) | 2000-12-15 | 2001-08-13 | Split type film biological reactor and water treatment method |
Publications (2)
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| CN1358675A CN1358675A (en) | 2002-07-17 |
| CN1156410C true CN1156410C (en) | 2004-07-07 |
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| CNB01123900XA Expired - Fee Related CN1156410C (en) | 2000-12-15 | 2001-08-13 | Split type film biological reactor and water treatment method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453478C (en) * | 2006-09-21 | 2009-01-21 | 深圳市金达莱环保股份有限公司 | Intelligent type mid-water reuse device and cleaning method thereof |
| CN101274810B (en) * | 2008-05-20 | 2013-10-16 | 北京汉青天朗水处理科技有限公司 | Sewage treating device and process |
| CN101723513B (en) * | 2009-12-08 | 2012-07-04 | 西安建筑科技大学 | Vertical membrane bioreactor |
| JP2012205997A (en) * | 2011-03-29 | 2012-10-25 | Kurita Water Ind Ltd | Treatment method of organic wastewater by membrane separation activated sludge apparatus |
| CN102921655A (en) * | 2012-10-11 | 2013-02-13 | 成都思诚机电设备有限公司 | Plastic washing wastewater purifying system based on environmental protection and energy saving |
| CN105731734B (en) * | 2016-03-31 | 2018-04-20 | 浙江大学 | A kind of energy saving MBR sewage disposal systems |
| CN110282731B (en) * | 2019-06-24 | 2023-12-19 | 三达膜科技（厦门）有限公司 | MBR membrane module root air inlet structure |
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