CN201220925Y - Pulse aeration type membrane bioreactor apparatus - Google Patents
Pulse aeration type membrane bioreactor apparatus Download PDFInfo
- Publication number
- CN201220925Y CN201220925Y CNU2007201414866U CN200720141486U CN201220925Y CN 201220925 Y CN201220925 Y CN 201220925Y CN U2007201414866 U CNU2007201414866 U CN U2007201414866U CN 200720141486 U CN200720141486 U CN 200720141486U CN 201220925 Y CN201220925 Y CN 201220925Y
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- air
- pneumavalve
- aerating apparatus
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- membrane
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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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- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The utility model relates to a pulse membrane aerated bioreactor device, which is mainly composed of a biological reaction tank, an air feeder, two aeration devices, membrane modules, a water inlet and outlet device and a controlling system. Each main air supply pipe in the air feeder is respectively connected with the two aeration devices for air supplying, each aeration device is corresponding to a set of membrane modules and a set of pneumatic valves, and each aeration device is connected with the pneumatic valves which are connected in series. By adopting the device, the problem of the high operation energy consumption caused by the utilization of an integrated membrane bioreactor can be overcome, and the device is particularly applied to the advanced treatment for the domestic sewage in large-scale sewage treatment plant and the field for the production of the high-quality renovated water.
Description
Technical field
The utility model belongs to a kind of sewage water advanced treatment apparatus in the water treatment, relates in particular to integral type film biological reactor adopts device from pulse to the membrane module air feed.
Background technology
Along with China's rapid economy development, the consumption of water resources is multiplied, caused the in short supply of water resources on the one hand, also increased simultaneously the generation of sewage, strengthened the pressure of society and environment sustainable development, parties concerned's input substantial contribution is handled sewage and its resource utilization is utilized again for this reason, makes sewage disposal technology that tremendous development arranged.
Membrane biological reactor process is exactly a kind of novel advanced treatment method for sewage water and the high-quality reuse water production method that develops in recent years, this technology organically combines membrane separation technique and traditional wastewater biologic treating technique, high efficiency separation effect with film replaces traditional precipitation and filtration procedure, make activated sludge particles and most microorganism be retained in the biological reaction tank, clear liquid behind the membrane sepn is extracted out from the film silk by vacuum primingpump, thereby can have higher sludge concentration in the reaction tank.It is little to compare its floor space of traditional sewage water treatment method, stable effluent quality, and can elimination overwhelming majority pathogenic micro-organism.
Because active sludge intermixture directly contacts with the film surface in integral type film biological reactor, the film surface easily produces differentialization of concentration phenomenon, causes film more easily to pollute, and has reduced the membrane flux of membrane module.In order to alleviate the pollution of film, taking bigger aeration intensity that the film surface is carried out that cross-flow washes away could be effective relatively.Like this, both strengthened operation energy consumption, shortened the work-ing life of film again, bigger on the other hand aeration intensity makes has too high dissolved oxygen in the mixed solution, this is very unfavorable for denitrification process, can not effectively remove the nitrogen element that causes body eutrophication, make it can not adapt to the requirement of advanced treatment of wastewater and waste water reclaiming.Therefore the application scale of membrane bioreactor is ascending now, and developing energy-saving membrane bioreactor, to be used for the mass production economic benefit of the advanced treatment of large-scale wastewater treatment plant or reuse water more and more significant.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and provides a kind of use range wide, operation energy consumption is low, compact construction, the film bioreactor device that treatment effect is stable, this device can overcome the problems such as operation energy consumption height of using integral type film biological reactor and producing, its aeration rate can obviously be reduced simultaneously have the high technical characterstic of effluent characteristics again, be specially adapted to the advanced treatment of sanitary sewage of large-scale wastewater treatment plant and the occasion that high-quality reuse water is produced.
The purpose of this utility model is realized by following technical proposals: a kind of pulse aeration type membrane bioreactor device, mainly form by biological reaction tank, air feeder, aerating apparatus, membrane module, Inlet and outlet water device and Controlling System etc.Air feeder comprises gas blower, under meter, air-supply duct, pneumavalve and aerating apparatus; Comprise two cover membrane modules and corresponding air feeder in the biological reaction tank; Aerating apparatus is made up of air intake branch that is installed in the membrane module bottom and perforated pipe; Discharging device comprises self-priming lift pump.
Beneficial effect
Adopt the utility model periodically to open and closure by pneumavalve, adopt the total aeration rate that periodically reduces membrane bioreactor to the mode of membrane module interruption air feed, the time of one-period is that 20s is to 60s, and the pneumavalve unlatching is identical with the closed time in the same cycle, and this device can overcome the problems such as operation energy consumption height of using integral type film biological reactor and producing.Be specially adapted to the advanced treatment of sanitary sewage of large-scale wastewater treatment plant and the occasion that high-quality reuse water is produced.
Description of drawings
Fig. 1 is a pulse aeration type membrane bioreactor schematic representation of apparatus of the present invention.
Among the figure: 1. gas blower, 2. gas meter, 3. air supply header, 4. pneumavalve 1, and 5. pneumavalve 2, and 6. aerating apparatus 1,7. aerating apparatus 2,8. water inlet pipe, 9. biological reaction tank, 10. membrane module 1,11. membrane module 2,12. liquid meters 1,13. liquid meter 2,14. lift pumps 1,15. lift pump 2,16. rising pipe, 17. shore pipes.
Below in conjunction with accompanying drawing the utility model is described further: a kind of energy-saving membrane bioreactor, integral type membrane bioreaction Answer device to adopt pulse mode to the membrane module air feed, namely adopt the mode of periodic breaks air feed to reduce the aeration of membrane bioreactor Amount, system is by the control of PLC controller, and device is by biological reaction pool (9), feeder, aerator (6), (7), film group Part (10), (11), the parts such as Inlet and outlet water device and control system form. Feeder mainly by air blast (1), flowmeter (2), (12), air supply pipe (3), pneumatic operated valve (5) and aerator (6), (7) form, and pneumatic operated valve is by the oilless air compressor air feed, System is controlled by the PLC controller. Air blast (1) is air feed continuously, and pneumatic operated valve is opening and closing periodically, the time of one-period For 20s to 60s (comprising the pneumatic operated valve opening and closing time), and in the same cycle time phase of pneumatic operated valve opening and closing With, being half period, its periodicity opening and closing is controlled by PLC. When pneumatic operated valve (4), (5) unlatching, the Xiang Yuqi string Aerator (6), (7) air feed of connection, the film surface of corresponding membrane module is subjected to cross-flow and washes away, and pneumatic operated valve (4), (5) are closed When closing, stop air feed to aerator (6), (7) of series connection with it, no matter but in the same cycle pneumatic operated valve (4), (5) Closure or openness, corresponding membrane module (10), (11) water outlet duty are all unaffected, i.e. membrane module (10), (11) The closure or openness of water outlet work period and pneumatic operated valve (4), (5) are irrelevant.
Have two cover membrane modules and corresponding feeder in the biological reaction pool (9) at least. The corresponding cover membrane module of one cover aerator, Each air supply header is respectively to two cover aerator air feed. Every road feeder comprises air supply header (3), two cover pneumatic operated valves at least (4), (5) and two cover aerators (6), (7), the duties of two cover pneumatic operated valves are mutual exclusions, namely a cover pneumatic operated valve is opened The time, another set of pneumatic operated valve is closed. Air feed is responsible for continuous air feed, alternately overlaps the aerator air feed to two of series connection with it then, When the air feed supervisor overlapped the aerator air feed to one, the pneumatic operated valve of connecting with this cover aerator was opened, simultaneously another set of aeration dress Putting and stop air feed, is that the periodicity opening and closing of the pneumatic operated valve by series connection with it is finished to the alternately air feed of every cover aerator . Aerator (6), (7) are made up of the air intake branch and the perforated pipe that are installed in membrane module (10), (11) bottom. Water outlet Adopt Self-pumping type water pump (14), (15) intermittent operation, water discharging time is 5-10 with the ratio that stops water discharging time: 1, go out The water cycle is 5-15 minute. System is controlled by PLC.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Present embodiment is that two cover membrane modules and two corresponding cover aerating apparatuss are arranged in the biological reaction tank, and an air feed is responsible for respectively to two cover aerating apparatus air feed.The air feeder of every cover membrane module comprises a cover pneumavalve and a cover aerating apparatus.
Embodiment is used for the urban wastewater treatment firm of 1500 tons of day comprehensive sanitary sewages of processing, and membrane bioreactor system is made up of two membrane modules, adorns 60 film spares in each membrane module, each film spare membrane area 25m
2The sewage that enters membrane bioreactor system is earlier through grid and the pre-treatment of aerating regulation pond, enter biological reaction tank (9) by water inlet pipe (8), the residence time of sewage in reaction tank (9) is 4 hours, keep the active sludge of 3000-8000mg/L in the reaction tank (9), the water outlet time is 9: 1 with the ratio that stops the water outlet time, and the water outlet cycle is 9 minutes; Clear liquid behind the membrane sepn is extracted out from the film silk by rising pipe (16) by lift pump (14), (15) and is discharged, water outlet is by liquid meter (12), (13) metering, system's turnover water yield is by the control of PLC central controller, and the excess sludge in the biological reaction tank is discharged by shore pipe (17).
The air feeder of embodiment mainly is made up of gas blower (1), pneumavalve (4), pneumavalve (5) and aerating apparatus (6), aerating apparatus (7) etc.Gas blower (1) is air feed continuously, gas is measured by under meter (2), pneumavalve (4), pneumavalve (5) are periodically alternately opened and are closed, the time of one-period is 30s, pneumavalve is opened identical with the closed time in the same cycle, be 15s, it is periodically opened and is closed by central controller PLC control, and pneumavalve is by the oilless air compressor air feed.When pneumavalve (4) is opened, to aerating apparatus (6) air feed, the film surface of corresponding membrane module (10) is subjected to the gas-liquid mixed flow and washes away, this moment pneumavalve (5) closure, stop air feed to aerating apparatus (7), but corresponding membrane module (11) water outlet working order is unaffected, still by water outlet time and the ratio that stops the water outlet time 9: 1, and the work of 9 minutes water outlet cycles; It begins closure when pneumavalve (4) is opened 15s, and pneumavalve (5) is opened 15s simultaneously; It is opened again when the closed 15s of pneumavalve (4), and pneumavalve (5) begins closed 15s simultaneously.
Pneumavalve is so periodically alternately opened and closed work, the film surface is subjected to the mixed stream interruption of gas-liquid and washes away, but the amount to two membrane module system air feed only is equivalent to the amount of tradition to a membrane module system air feed, and the air water volume ratio only is 11: 1, saves 50% of air demand.Because the energy consumption of membrane bioreactor system mainly is subjected to influence to the aerating apparatus air demand of membrane module, so apparatus system is saved power consumption about 40%.
Through contrast running in a year, apparatus system saves energy effect was obvious for embodiment.The influence of the energy-saving effect of embodiment and turnover water quality sees table 1 for details and sees Table 2, wherein table 1 is that open simultaneously pneumavalve (4) and (5), to the membrane module continuous aeration, the air water volume ratio is 21: 1, day handle 1500 tons of comprehensive sanitary sewages, 1 month average data of continuous operation by the gas blower air feed of two same specifications, aerating apparatus; Table 2 is pneumavalve (4) and (5) alternately unlatching, is 11: 1, handles 1500 tons of comprehensive sanitary sewages day, is contrasted identical, 1 month the average data of continuous operation of maintenance membrane module transmembrane pressure in the running by 1 gas blower 1 air feed, air water volume ratio.
Table 1: the turnover water quality unit of aerating apparatus during: mg/L to the membrane module continuous aeration
Table 2: the turnover water quality unit of aerating apparatus during: mg/L to membrane module pulse aeration
From table, adopt the energy-saving membrane bioreactor of the present invention as can be known, handle ton water power consumption and be reduced to 0.44kwh from 0.74kwh, system saves power consumption 40%, the effluent quality of described processing method also is much better than the reuse water standard and the national grade one discharge standard of national water for scenic environment use, and effluent quality is very good.
Claims (3)
1 one kinds of pulse aeration type membrane bioreactor devices, mainly be made up of biological reaction tank, air feeder, aerating apparatus, membrane module, Inlet and outlet water device and Controlling System, it is characterized in that: air feeder comprises gas blower, under meter, air-supply duct, pneumavalve and aerating apparatus; Comprise two cover membrane modules and corresponding air feeder in the biological reaction tank; Aerating apparatus is made up of air intake branch that is installed in the membrane module bottom and perforated pipe; Discharging device comprises self-priming lift pump, and every air feed person in charge is respectively to linking to each other with two cover aerating apparatus air feed in the air feeder, and the corresponding cover membrane module of a cover aerating apparatus and overlaps pneumavalve, and the pneumavalve of every cover aerating apparatus series connection with it connects.
2. pulse aeration type membrane bioreactor device as claimed in claim 1 is characterized in that: the self-priming lift pump intermittent operation of discharging device, and the water outlet time is 5-10 with the ratio that stops the water outlet time: 1, the water outlet cycle is 5-15 minute.
3. pulse aeration type membrane bioreactor device as claimed in claim 1, it is characterized in that: periodically open and closure by PLC controller control pneumavalve, the time of one-period be 20s to 60s, and pneumavalve is opened identical with the time of closure in the same cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201414866U CN201220925Y (en) | 2007-04-06 | 2007-04-06 | Pulse aeration type membrane bioreactor apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201414866U CN201220925Y (en) | 2007-04-06 | 2007-04-06 | Pulse aeration type membrane bioreactor apparatus |
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| CN201220925Y true CN201220925Y (en) | 2009-04-15 |
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| CNU2007201414866U Expired - Lifetime CN201220925Y (en) | 2007-04-06 | 2007-04-06 | Pulse aeration type membrane bioreactor apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176483A (en) * | 2013-04-09 | 2013-06-26 | 北京国环清华环境工程设计研究院有限公司 | Method and system for controlling aeration quantity of membrane tank |
| CN103466897A (en) * | 2013-09-27 | 2013-12-25 | 广西贵港市蓝月亮水处理环保科技有限公司 | Waste water processing method |
| CN103496783A (en) * | 2013-09-27 | 2014-01-08 | 广西贵港市蓝月亮水处理环保科技有限公司 | Pulse turbulence membrane bioreactor |
| CN103708606A (en) * | 2013-12-31 | 2014-04-09 | 北京清大国华环保科技有限公司 | Pulsed energy-saving MBR (membrane bioreactor) method and device |
| CN103803699A (en) * | 2012-11-09 | 2014-05-21 | 海南立昇净水科技实业有限公司 | Batch-type aerating apparatus |
| CN104773820A (en) * | 2015-03-25 | 2015-07-15 | 中国科学院生态环境研究中心 | Membrane bioreactor intermittent circulating aeration apparatus and aeration method thereof |
| CN110606555A (en) * | 2019-10-10 | 2019-12-24 | 北京逸智联科技有限公司 | MBR membrane module and MBR membrane bioreactor |
-
2007
- 2007-04-06 CN CNU2007201414866U patent/CN201220925Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803699A (en) * | 2012-11-09 | 2014-05-21 | 海南立昇净水科技实业有限公司 | Batch-type aerating apparatus |
| CN103803699B (en) * | 2012-11-09 | 2016-03-30 | 海南立昇净水科技实业有限公司 | intermittent aeration device |
| CN103176483A (en) * | 2013-04-09 | 2013-06-26 | 北京国环清华环境工程设计研究院有限公司 | Method and system for controlling aeration quantity of membrane tank |
| CN103176483B (en) * | 2013-04-09 | 2015-07-08 | 北京国环清华环境工程设计研究院有限公司 | Method for controlling aeration quantity of membrane tank |
| CN103466897A (en) * | 2013-09-27 | 2013-12-25 | 广西贵港市蓝月亮水处理环保科技有限公司 | Waste water processing method |
| CN103496783A (en) * | 2013-09-27 | 2014-01-08 | 广西贵港市蓝月亮水处理环保科技有限公司 | Pulse turbulence membrane bioreactor |
| CN103496783B (en) * | 2013-09-27 | 2015-03-11 | 广西贵港市蓝月亮水处理环保科技有限公司 | Pulse turbulence membrane bioreactor |
| CN103708606A (en) * | 2013-12-31 | 2014-04-09 | 北京清大国华环保科技有限公司 | Pulsed energy-saving MBR (membrane bioreactor) method and device |
| CN104773820A (en) * | 2015-03-25 | 2015-07-15 | 中国科学院生态环境研究中心 | Membrane bioreactor intermittent circulating aeration apparatus and aeration method thereof |
| CN110606555A (en) * | 2019-10-10 | 2019-12-24 | 北京逸智联科技有限公司 | MBR membrane module and MBR membrane bioreactor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING URBAN CONSTRUCTION ENVIRONMENTAL WATER INV Free format text: FORMER OWNER: BEIJING BISHUIYUAN SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20120514 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100089 HAIDIAN, BEIJING TO: 211100 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120514 Address after: 211100, Jiangsu, Nanjing province Jiangning District 55, general Avenue, Tengfei, The Creative Center, ten floor Patentee after: Nanjing Chengjian Environmental Protection Water Investment Co., Ltd. Address before: 100089, Beijing Haidian District factory Simon Road 2, Kyrgyzstan friend building, 2 floor Patentee before: Beijing Bishuiyuan Science and Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice |
Addressee: Wen Jianping Document name: Notification of Passing Examination on Formalities |
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| CX01 | Expiry of patent term |
Granted publication date: 20090415 |
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| CX01 | Expiry of patent term |