CN2915846Y - Intermediate aeration and water-outlet film bioreactor - Google Patents
Intermediate aeration and water-outlet film bioreactor Download PDFInfo
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- CN2915846Y CN2915846Y CN 200520145851 CN200520145851U CN2915846Y CN 2915846 Y CN2915846 Y CN 2915846Y CN 200520145851 CN200520145851 CN 200520145851 CN 200520145851 U CN200520145851 U CN 200520145851U CN 2915846 Y CN2915846 Y CN 2915846Y
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Abstract
The utility model is an intermediate aeration and water-outlet film bioreactor, mainly including a film bioreactor, a film element is positioned in the film bioreactor, a aeration pipe, a water-inlet pipe and a water-outlet pipe are positioned on the film bioreactor, the utility model is characterized in that a relay and an electromagnetic valve is connected with the aeration pipe to control the time of aeration and intermission, a relay and an electromagnetic valve is connected with the water-inlet pipe to control the water stoppage and water effluent. The utility model factitiously creates a condition of aerobic, anaerobic or oxygen-poor by controlling the time of aeration and intermission to provide the denitriding capacity of the whole utility model; the utility model can not only increase the denitriding capacity, but also reduce the film pollution by control the time of water stoppage and water effluent. Experiments prove that the utility model is simple in process, convenient in operation, reliable in performance, long in useful time and wide in application scope besides the features that the clearance rate for organic substance and ammonia nitrogen is high, the clearance for total nitrogen is obvious, the film pollution is low and the original equipment needs not transforming.
Description
Technical field
The utility model relates to a kind of membrane bioreactor, particularly relates to a kind ofly in removing waste water in the organic process, can improve the intermittent aeration of membrane bioreactor denitrogenation ability, water outlet membrane bioreactor intermittently, belongs to water treating equipment.
Background technology
Along with the Chinese society rapid development of economy, the quantity discharged of all contaminations sharply increases, and environment especially water body has been caused severe contamination, and the shortage of water resources has become the important factor of restriction China sustainable development.According to the report of environmental monitoring master station, the principal pollutant of China's urban surface water are ammonia nitrogen, phenol etc.The discharging that exceeds standard of ammonia nitrogen waste water is the major cause of body eutrophication.In addition, ammonia nitrogen also can increase the chlorine dosage of water disinfection and industrial circulating water germicidal treatment; To some metal, particularly copper had corrodibility; When reusing sewage, ammonia nitrogen can promote the breeding of microorganism in water pipe and the watering equipment in the reuse water, forms biofouling, blocking pipe and watering equipment, and influence heat exchange efficiency.Ammonia nitrogen waste water has caused the attention of environmental protection field and global range, over nearly one, 20 year, is carrying out more research aspect the ammonia nitrogen waste water processing both at home and abroad.Its research range almost relates to the various treatment process of physics, chemistry, biological process, and new technology constantly occurs, and is demonstrating out tempting prospect aspect the industrial application of ammonia nitrogen waste water processing.
At present, the treatment technology of ammonia nitrogen waste water can be divided into two big classes: a class is the materialization treatment technology, comprises stripping (or stripping), precipitation, film absorption, wet oxidation etc., and wherein stripping and film absorption technique all need ammonia nitrogen to exist with the amino molecule form as far as possible; Another kind of technology is a bio-denitrification technology.
Must consider the settling property of speed of reaction and mud when turning round at traditional activated sludge process.Speed of reaction depends primarily on concentration of activated sludge (MLSS), the sludge concentration height, and then speed of response is just fast.But consider that second pond can not be excessive,, thereby influenced speed of reaction so MLSS just can not be too big.The settling property of mud then depends on the operational conditions of reactor.The operational condition of strict controlling reactor is the most important condition, has therefore also limited the range of application of activated sludge process.In order to overcome these deficiencies, scientists has at first been expected carrying out solid-liquid separation with film.What originally adopt is simple separate film biological reactor.This membrane reactor is owing to need sludge reflux pump to guarantee that certain crossflow velocity just certainly will cause the working cost height of system, and the shearing force of the generation that refluxes may influence the catalytic activity of microorganism.After this separate film biological reactor is transformed, just formed present cross-current type separatory membrane bio-reactor.Up-to-date a kind of membrane bioreactor is an integral type film biological reactor, also claims the submerged membrane bio-reactor.Membrane module directly is put in the bio-reactor, and crossflow velocity is provided by the stirring of air, like this as long as combined suction and force pump, aerator and a reaction tank of a low discharge.
Membrane bioreactor (Membrane Bioreactor, be called for short MBR) is a kind of novel water processing reactor system that supermicro filtration membrane assembly in the high performance membrane isolation technique is combined with biological processing unit.It has replaced the secondary sedimentation basins in the activated sludge process with the high efficiency separation effect of membrane technique, reached original secondary sedimentation basins incomparable mud-water separation and mud concentrated effect.Because film is to the filteration of active sludge intermixture, this system almost can be trapped in all microorganisms in the bio-reactor, and the biological sludge concentration in the reactor is improved, sludge age prolongs, so membrane bioreactor has the pollutent of removal efficient height, effluent quality is good, and surplus sludge volume is few, capacity of resisting impact load is strong, floor space is little, and is stable, and system is flexible, advantages such as flow process is self controllable, and running maintenance is simple.Advanced treatment of wastewater and reclaim again with aspect wide application prospect is arranged.
And from biological treatment effect angle integral type film biological reactor, because film is to the crown_interception of microbial bacterial, the generation cycle long microorganism enrichment of under the less condition of HRT, surviving, thereby membrane bioreactor has higher removal to hardly degraded organic substance ammonia nitrogen etc.And because anaerobic environment is insufficient, undesirable to the removal of total nitrogen.
Along with increasing the weight of of China's water pollution and shortage of water resources problem, domestic MBR research steps is accelerated, and has obtained very big achievement: scientific research institutions such as the high universities and colleges such as Tsing-Hua University, Tongji University, University Of Tianjin and the Chinese Academy of Sciences are all in the theory of being engaged in MBR technology and scientific research; In addition, have application at aspects such as building waste water, sewage reuse, hospital wastewater processing.But be subjected to the restriction of conditions such as present domestic economy developmental level, film product-feed situation and standard design requirements, the example of large-scale engineering applications also seldom.This mainly is that wherein membrane pollution problem does not find a kind of effective solution so far because it is the high and membrane pollution of membrane bioreactor problem of membrane module cost that membrane bioreactor has its shortcoming.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, sets about from film pollution and biological treatment effect two aspects, provides a kind of film that promptly can reduce to pollute intermittent aeration, water outlet at the intermittence membrane bioreactor that can improve denitrification effect again.This novel membrane bioreactor is controlled aeration and intermittent time by installation rly. and magnetic valve on aerating pipelines, and artificial creation a kind of aerobic and anaerobism or anoxybiotic condition provide whole denitrogenation ability; On outlet pipeline, install rly. and magnetic valve control stop, the water outlet time, promptly can improve the denitrogenation ability, can reduce film again and pollute.Experimental results show that the utility model except to the removal effect of organism and ammonia nitrogen removal frank height, total nitrogen obviously, film pollutes little, original equipment need not transform, and also has characteristics such as technology is simple, easy to operate, stable and reliable for performance, long service life, applied range.
The technical scheme that the utility model provides is: this intermittent aeration, intermittently the water outlet membrane bioreactor mainly includes membrane bioreactor, membrane module is housed in the membrane bioreactor, be connected to aeration tube on the membrane bioreactor respectively, water inlet pipe and rising pipe, be characterized in being serially connected with on the described aeration tube rly. and the magnetic valve that is used for controlling aeration and intermittent time, artificial creation a kind of aerobic and anaerobism or anoxybiotic condition, whole denitrogenation ability is provided, be serially connected with on the described rising pipe to be used for controlling and stop, the rly. of water outlet time and magnetic valve, when aeration, stop water outlet, water outlet when stopping aeration, at MLSS is 3.5g/L, gas meter control aeration rate is 200L/h, aeration 10min, 3min intermittently, water outlet simultaneously stops 10min, go out 3min and promptly can improve the denitrogenation ability, can reduce film again and pollute.
Principle of work of the present utility model is, mainly utilizes film that most biologies are trapped in the reactor, keeps higher sludge quality concentration in the reactor, helps long microorganism generation time, as nitrobacteria, hold back and grow.Can effectively prevent the loss of the nitrobacteria that generation cycle of growth and breeding is long, for the nitrifier of possessing sufficient amount in the reactor to finish the biological nitration effect.In membrane bioreactor, growth along with sludge concentration, some big active sludge flcos have been formed in the biological tank, dissolved oxygen enters the certain concentration gradient of the inner meeting formation of flco by the surface of mud flco, oxygen supply on active sludge flco surface is abundant, carry out nitration reaction, in the anaerobic environment of active sludge flco inside, denitrifying bacteria carries out denitrification.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1). to organism and ammonia nitrogen removal frank height, the removal effect of total nitrogen obviously improves;
(2). film pollutes and can alleviate;
(3). install easy for installationly, original equipment need not transformed, and can directly pack into;
(4). also have characteristics such as technology is simple, easy to operate, stable and reliable for performance, long service life, applied range.
Description of drawings
Accompanying drawing is the equipment connection diagram that the utility model provides embodiment.
Number in the figure is: 1. membrane bioreactor, 2. membrane module, 3. aeration tube, 4. water inlet pipe, 5. rising pipe, 6. rly., 7. magnetic valve, 8. rly., 9. magnetic valve, 10. elevated tank, 11. balanced reservoirs, 12. air compressor machines, 13. differential manometers, 14. under meters.
Embodiment
As shown in the figure, this intermittent aeration, water outlet at intermittence membrane bioreactor, mainly include membrane bioreactor 1, membrane module 2 is housed in the membrane bioreactor 1, be connected to aeration tube 3 on the membrane bioreactor 1 respectively, water inlet pipe 4 and rising pipe 5, be serially connected with the rly. 6 and the magnetic valve 7 that are used for controlling aeration and intermittent time on the described aeration tube 3, artificial creation a kind of aerobic and anaerobism or anoxybiotic condition, whole denitrogenation ability is provided, be serially connected with on the described rising pipe 5 to be used for controlling and stop, the rly. 8 of water outlet time and magnetic valve 9, stop water outlet when aeration, water outlet when stopping aeration is 3.5g/L at MLSS, gas meter control aeration rate is 200L/h, aeration 10min, 3min intermittently, water outlet simultaneously stops 10min, go out 3min and promptly can improve the denitrogenation ability, can reduce film again and pollute.
Working process of the present utility model is: former water is sanitary sewage, BOD wherein
5: N: P=100: 5: 1.Former water enters balanced reservoir 11 by gravity through water inlet pipe 4 from elevated tank 10, and the rising pipe by balanced reservoir 11 bottoms enters into membrane bioreactor 1, and the liquid level of membrane bioreactor 1 is kept by the float(ing)valve in the balanced reservoir 11.The cross-flow fluid that the gas that air compressor machine 12 produces provides required dissolved oxygen of microorganism in the reactor and generation to wash away face by the sand filtration aeration head in aeration tube 3, the membrane bioreactor 1, and by the magnetic valve on the aeration tube 37,6 control intermittent times of rly., gas rotameter is controlled aeration rate.Former water in the membrane bioreactor 1 is by the degraded of microorganism, and membrane filtration is by rising pipe 5 water outlets, and by the magnetic valve on the rising pipe 59,8 control intermittent times of rly., spinner-type flowmeter 14 is controlled the water outlet water yields.For monitoring the situation that film pollutes in real time, utilize law of connected vessels to make differential manometer 13, reflect the situation of film pollution by the liquid level of the piezometric tube on the pressure measurement plate.
Claims (1)
1. an intermittent aeration, water outlet membrane bioreactor intermittently, mainly include membrane bioreactor, membrane module is housed in the membrane bioreactor, be connected to aeration tube, water inlet pipe and rising pipe on the membrane bioreactor respectively, it is characterized in that being serially connected with rly. and the magnetic valve that is used for controlling aeration and intermittent time on the described aeration tube, be serially connected with on the described rising pipe be used for controlling stop, rly. and the magnetic valve of water outlet time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145851 CN2915846Y (en) | 2005-12-20 | 2005-12-20 | Intermediate aeration and water-outlet film bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145851 CN2915846Y (en) | 2005-12-20 | 2005-12-20 | Intermediate aeration and water-outlet film bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2915846Y true CN2915846Y (en) | 2007-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520145851 Expired - Fee Related CN2915846Y (en) | 2005-12-20 | 2005-12-20 | Intermediate aeration and water-outlet film bioreactor |
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| Country | Link |
|---|---|
| CN (1) | CN2915846Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276055A (en) * | 2011-05-17 | 2011-12-14 | 太平洋水处理工程有限公司 | Novel method for controlling membrane pollution in membrane-bioreactor |
| CN101798156B (en) * | 2010-01-14 | 2012-09-19 | 浙江省环境保护科学设计研究院 | Process for three-cycle A2/O2 intermittent aeration and biochemical nitrogen-phosphorus removing treatment |
| CN105198165A (en) * | 2015-10-14 | 2015-12-30 | 云南圣清环保科技有限公司 | Sewage treatment method |
| CN106587346A (en) * | 2015-10-15 | 2017-04-26 | 天津海之凰科技有限公司 | Method for removing total nitrogen in river course water by using an intermittent EHBR system |
| CN108911134A (en) * | 2018-07-17 | 2018-11-30 | 厦门理工学院 | A kind of processing method of sanitary sewage |
| CN109879538A (en) * | 2019-03-18 | 2019-06-14 | 浙江双益环保科技发展有限公司 | A kind of high total nitrogen, high salinity antibiotics pharmacy waste water processing method |
| WO2020015458A1 (en) * | 2018-07-17 | 2020-01-23 | 厦门理工学院 | Treatment method for waste water from livestock and poultry |
| US11286186B2 (en) | 2018-07-17 | 2022-03-29 | Xiamen University Of Technology | Method for treating dye wastewater |
| US11485656B2 (en) | 2018-07-17 | 2022-11-01 | Xiamen University Of Technology | Method for treating heavy metal wastewater |
-
2005
- 2005-12-20 CN CN 200520145851 patent/CN2915846Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798156B (en) * | 2010-01-14 | 2012-09-19 | 浙江省环境保护科学设计研究院 | Process for three-cycle A2/O2 intermittent aeration and biochemical nitrogen-phosphorus removing treatment |
| CN102276055A (en) * | 2011-05-17 | 2011-12-14 | 太平洋水处理工程有限公司 | Novel method for controlling membrane pollution in membrane-bioreactor |
| CN105198165A (en) * | 2015-10-14 | 2015-12-30 | 云南圣清环保科技有限公司 | Sewage treatment method |
| CN106587346A (en) * | 2015-10-15 | 2017-04-26 | 天津海之凰科技有限公司 | Method for removing total nitrogen in river course water by using an intermittent EHBR system |
| CN108911134A (en) * | 2018-07-17 | 2018-11-30 | 厦门理工学院 | A kind of processing method of sanitary sewage |
| WO2020015435A1 (en) * | 2018-07-17 | 2020-01-23 | 厦门理工学院 | Method for treating domestic wastewater |
| WO2020015458A1 (en) * | 2018-07-17 | 2020-01-23 | 厦门理工学院 | Treatment method for waste water from livestock and poultry |
| US11286186B2 (en) | 2018-07-17 | 2022-03-29 | Xiamen University Of Technology | Method for treating dye wastewater |
| US11352278B2 (en) | 2018-07-17 | 2022-06-07 | Xiamen University Of Technology | Method for treating domestic sewage |
| US11485656B2 (en) | 2018-07-17 | 2022-11-01 | Xiamen University Of Technology | Method for treating heavy metal wastewater |
| CN109879538A (en) * | 2019-03-18 | 2019-06-14 | 浙江双益环保科技发展有限公司 | A kind of high total nitrogen, high salinity antibiotics pharmacy waste water processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |