CN1609015A - Sewage treating apparatus with baffling, aerating, boosting and gravitationally outflowing membrane bioreactor - Google Patents
Sewage treating apparatus with baffling, aerating, boosting and gravitationally outflowing membrane bioreactor Download PDFInfo
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- CN1609015A CN1609015A CNA2003101027662A CN200310102766A CN1609015A CN 1609015 A CN1609015 A CN 1609015A CN A2003101027662 A CNA2003101027662 A CN A2003101027662A CN 200310102766 A CN200310102766 A CN 200310102766A CN 1609015 A CN1609015 A CN 1609015A
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- reaction zone
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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)
Abstract
The present invention relates to environment protecting technology, and is especially one kind of membrane bioreactor sewage treating apparatus. The apparatus consists of baffling and aerating bioreactor and membrane assembly, the baffling and aerating bioreactor is biochemical reaction area divided with baffle into two or more independent reaction areas; and the membrane assembly is installed outside the baffling and aerating bioreactor. The present invention needs no pump for the circulation of mixed liquid between the biochemical reaction area and the membrane assembly, has low power consumption and increased membrane water permeating amount.
Description
Technical field
The present invention relates to green technology, belong to the equipment that utilizes biochemical technology and membrane separation technique to dispose of sewage, particularly a kind of baffling aeration supercharging gravity-elution membrane bioreactor sewage disposal device.
Background technology
Membrane bioreactor is a kind of sewage disposal device that is combined by biochemical treatment unit and membrane module.A subject matter of traditional activated sludge process is to carry out mud-water separation by sludge settling, because sludge settling property is poor, causes effluent quality poor.And since film can solid and colloidalmaterial be trapped in the bio-reactor, make water outlet directly to enter surface water or be back to water coolant, the water of flushing the toilet, greening water, can be used as process water after further handling.The efficient crown_interception of film is trapped in the reactor microorganism fully, has realized separating fully of the reactor waterpower residence time and sludge retention time.Can control hydraulic detention time and sludge retention time respectively like this, help breeding the growth of microorganism (as nitrifier or methanogen) slowly, prevent the Black Liquor with Efficient Bacteria in the reactor or the loss of dominant bacteria.Common some essential advanced treatment apparatus when membrane bioreactor does not need second pond and reuse, and can under very high sludge concentration, move, the sludge bulking phenomenon can not brought influence to its operation.Therefore it can have very high volumetric loading, and the more common activated sludge process of its floor space greatly reduces.Because the efficient crown_interception of film makes the macromolecular compound of difficult degradation that enough residence time be arranged, therefore improved the degradation efficiency of hardly degraded organic substance greatly in bio-reactor.The sludge loading of membrane bioreactor is low, causes its sludge yield low, and the excess sludge discharge amount is few.Therefore membrane bioreactor has broad application prospects.
Membrane bioreactor has two kinds of forms.A kind of is the separate film biological reactor (see figure 2).Utilize recycle pump 21 that mixed solution is flowed fast on the film surface of membrane module 10, produce shearing force or turbulent flow thus and pollute to alleviate film.In order to keep stable permeability rate, crossflow velocity is generally greater than 2m/s, and this just needs higher quantity of circulating water, causes higher unit to produce water consumption.Another kind is the integral type film biological reactor (see figure 3).In integral type film biological reactor, membrane module 10 directly is immersed in the interior mixed solution of bio-reactor, and the suction by vacuum pump 22 or other types pump obtains filtered liquid.The cross-flow on film surface is produced by air agitation, aerator 20 be arranged on membrane module 10 under; Mixed solution upwards flows with air-flow, produces shearing force on the film surface, and under the effect of shearing force, minimizing sludge suspension particle adheres to the film surface, allows water see through.
The membrane bioreactor of these two kinds of forms respectively has its relative merits.The membrane flux of separate film biological reactor is bigger, and the membrane module clean and maintenance is convenient, but the energy consumption height; And the energy consumption of integral type film biological reactor is low, but because membrane module is submerged in the mixed solution difficult clean and maintenance.
Summary of the invention
The advantage that the objective of the invention is to comprehensive separate film biological reactor and integral type film biological reactor, overcome the defective of the two existence, a kind of less energy-consumption is provided, the membrane module clean and maintenance is utilized the membrane bioreactor sewage disposal device and the working method thereof of the difference of altitude gravity-elution of the liquid level of biochemical reaction zone and membrane module easily.In order to guarantee that enough membrane filtration pressure to improve the permeable amount of film, adopts the mode of baffling aeration supercharging.
For achieving the above object, technical solution of the present invention provides a kind of baffling aeration supercharging gravity-elution membrane bioreactor sewage disposal device, form by baffling aeration and biological reactor and membrane module, its described baffling aeration and biological reactor is a biochemical reaction zone, by dividing plate it is divided into reaction zone relatively independent more than two; A pipe core is installed in each reaction zone, between pipe core and the reactor wall space is arranged; The mixed solution of two reaction zones is by the channel connection of dividing plate lower end; A reaction zone top air chamber is communicated with the pipe core bottom of b reaction zone by air communicating pipe; Lower sides at the b reaction zone has water-in;
Described membrane module is a solid-liquid separating equipment, is installed in a reaction zone outside of baffling aeration and biological reactor, is lower than mixed solution liquid level certain altitude place; The bottom of film silk is laid with solarization air cap in the membrane module, has water outlet on the top of membrane module sidewall, has inlet mouth in the bottom of membrane module sidewall; Bottom at membrane module has entry to mixed solution, has concentrated solution outlet at the top of membrane module; The membrane module entry to mixed solution passes through pipe connecting and the sidewall of a reaction zone and the regional connectivity between the pipe core down; The membrane module concentrated solution outlet is communicated with the pipe core of a reaction zone by last pipe connecting; Upper and lower pipe connecting all is equipped with valve, interface.
Described equipment, the biochemical reaction zone of its described baffling aeration and biological reactor is divided into several relatively independent reaction zones by dividing plate with it.
Described equipment, its described membrane module entry to mixed solution is connected with following pipe connecting by interface, and the membrane module concentrated solution outlet is connected with last pipe connecting by interface.
Described equipment, its described pipe connecting down is arranged on the outer side wall bottom of baffling aeration and biological reactor, and last pipe connecting is arranged on down the top of pipe connecting.
Described equipment, its described interface is flange, hickey or pipe collar.
Described equipment, its workflow is as follows: city domestic sewage or trade effluent enter b biochemical reaction zone and active sludge thorough mixing by water-in, and enter a biochemical reaction zone by the passage of dividing plate lower end, further mix with active sludge; Gas enters membrane module by inlet mouth, and carries the isolating concentrated solution of tunicle enters a biochemical reaction zone by last pipe connecting pipe core; Gas rise to drive circulating of mixed solution inside and outside the pipe core along pipe core, and gas enters in the air chamber on a biochemical reaction zone top then; When the air pressure in the air chamber during greater than the hydraulic pressure of b biochemical reaction zone, gas enters the pipe core bottom of b biochemical reaction zone by air communicating pipe, and the inside and outside mixed solution of the pipe core that drives the b biochemical reaction zone circulates, and pollutent is decomposed and removes at biochemical reaction zone; Simultaneously, partially mixed liquid enters membrane module by following pipe connecting from entry to mixed solution, with the liquid of water inlet equivalent under total gravity head that the baffling aeration is produced drives, through the membrane filtration continuous effluent; Separated mud concentrated solution enters the pipe core of a biochemical reaction zone from concentrated solution outlet by last pipe connecting then under the rolling action of gas, so moves in circles, and waste water is purified.
Described equipment, it can carry out online anti-cleaning to membrane module, and method is that valve-off adds scavenging solution from water outlet, discharges scavenging solution from inlet mouth.
Equipment of the present invention has following advantage:
1. system saves mixed solution recycle pump and the water outlet suction pump of integral type film biological reactor and the control unit of water outlet at intermittence of traditional separate film biological reactor, utilize the necessary oxygenation of biochemical reaction to wash away the film surface, and the circulation of realization mixed solution, thereby the operation energy consumption of reduction system.
2. the mode by the supercharging of baffling aeration guarantees that membrane module has enough discharge pressures, and this supercharging mode has solved because the difficulty that reactor that the space is limit is run into can not reach the needed height of membrane filtration the time.
3. membrane module is installed in the outside of biochemical reactor, is communicated with biochemical reactor by pipe connecting, and valve and interface are set on pipe connecting, makes that the installation and removal of membrane module are very easy, helps the maintenance and the cleaning of film.
4. compact equipment is succinct, and operation and maintenance are simple, is easy to realize automatic control.
Description of drawings
Fig. 1. the synoptic diagram of present device;
Fig. 2. the separate film biological reactor synoptic diagram;
Fig. 3. the integral type film biological reactor synoptic diagram.
Embodiment
A kind of baffling aeration supercharging gravity-elution membrane bioreactor sewage disposal device is made up of baffling aeration and biological reactor and membrane module.
See Fig. 1, described baffling aeration and biological reactor 1 is a biochemical reaction zone, by dividing plate 2 it is divided into two (or a plurality of) relatively independent reaction zone 3,4.A pipe core 5 is installed in each reaction zone, space 6 is arranged between pipe core 5 and the reactor wall.Water in the pipe core 5 is upward flow, and to stream, mixed solution circulates inside and outside pipe core 5 water outside the pipe for down.The mixed solution of a reaction zone 3 and b reaction zone 4 is communicated with by the passage 7 of dividing plate 2 lower ends; Air communicating pipe 8 one ends pass dividing plate 2 and communicate with the air chamber on a biochemical reaction zone 3 tops, and the other end is communicated with pipe core 5 bottoms of b biochemical reaction zone 4; Gas in a reaction zone 3 top air chambers can enter pipe core 5 bottoms of b reaction zone 4 by air communicating pipe 8.Lower sides at b reaction zone 4 has water-in 9.
Described membrane module 10 is a solid-liquid separating equipment, and a reaction zone 3 outsides that are installed in baffling aeration and biological reactor are lower than mixed solution liquid level 70 centimeters.The bottom of film silk 11 is laid with solarization air cap in the membrane module 10, in order to oxygenation, wash away film surface and make the mixed solution circulation.Top at membrane module 10 sidewalls has water outlet 12, has inlet mouth 13 in the bottom of membrane module 10 sidewalls; Have entry to mixed solution 14 in the bottom of membrane module 10, have concentrated solution outlet 15 at the top of membrane module 10.Following pipe connecting 16 is installed in the outer side wall bottom of baffling aeration and biological reactor, and last pipe connecting 17 is installed in down the top of pipe connecting 16.Membrane module 10 entry to mixed solution 14 pass through down, and pipe connecting 16 is communicated with the sidewall and the zone between the pipe core 6 of a reaction zone 3; Membrane module 10 concentrated solution outlets 15 are communicated with the pipe core 5 of a reaction zone 3 by last pipe connecting 17.Pipe connecting 16,17 all is equipped with valve 18; Membrane module 10 links to each other with pipe connecting 16,17 by interface 19.Interface 19 can be flange, hickey or pipe collar.
The bottom of film silk 11 is laid with solarization air cap, in order to wash away the film surface, continuous effluent under the total gravity head that the baffling aeration is produced drives is saved the water outlet suction pump of the mixed solution recycle pump of traditional separate film biological reactor and integral type film biological reactor and the control unit of water outlet intermittently.The isolating concentrated solution of tunicle under the carrying of gas by on pipe connecting 17 enter the pipe core 5 of a biochemical reaction zone 3.Gas rises along pipe core 5 and drives circulating of pipe core 5 inside and outside mixed solutions, and gas enters in the air chamber on a biochemical reaction zone 3 tops then.When the air pressure in the air chamber greater than b biochemical reaction zone 4 in during the hydraulic pressure of air communicating pipe 8 outlet top, gas enters pipe core 5 bottoms of b biochemical reaction zone 4 by air communicating pipe 8, and the pipe core 5 inside and outside mixed solutions that drive b biochemical reaction zone 4 circulate.Because the gravity head between gas will overcome a biochemical reaction zone 3 from the air chamber on inlet mouth 13 to b biochemical reaction zones 4 tops mixed solution liquid level exports with air communicating pipe 8 with the mixed solution liquid level of gravity head the inlet mouth 13 and b biochemical reaction zone 4, so the power of membrane filtration is that the mixed solution liquid level of a biochemical reaction zone 3 and the gravity head that the discrepancy in elevation produced of membrane module 10 add the mixed solution liquid level of b biochemical reaction zone 4 and the gravity head that the discrepancy in elevation produced that air communicating pipe 8 exports.By such baffling aeration mode, can be under the constant situation of the discrepancy in elevation that keeps mixed solution liquid level and membrane module 10, it is above that the discharge pressure of film is doubled, and solved because the difficulty that reactor that the space is limit is run into can not reach the needed height of membrane filtration the time.
The working method of baffling aeration supercharging gravity-elution membrane bioreactor of the present invention is: city domestic sewage or trade effluent enter b biochemical reaction zone 4 and active sludge thorough mixing by water-in 9, and enter a biochemical reaction zone 3 by the passage 7 of dividing plate 2 lower ends, further mix with active sludge.Gas enters membrane module by inlet mouth 13, and carries the isolating concentrated solution of tunicle enters biochemical a reaction zone 3 by last pipe connecting 17 pipe core 5.Gas rises along pipe core 5 and drives circulating of pipe core 5 inside and outside mixed solutions, and gas enters in the air chamber on biochemical a reaction zone 3 tops then.When the air pressure in the air chamber during greater than the hydraulic pressure of biochemical b reaction zone 4, gas enters pipe core 5 bottoms of biochemical b reaction zone 4 by air communicating pipe 8, and the pipe core 5 inside and outside mixed solutions that drive biochemical b reaction zone 4 circulate.Pollutent is decomposed and removes at biochemical reaction zone 3,4.
Partially mixed liquid enters membrane module 10 by following pipe connecting 16 from entry to mixed solution 14, with the liquid of water inlet equivalent under total gravity head that the baffling aeration is produced drives, through the membrane filtration continuous effluent.Separated mud enters the pipe core 5 of a biochemical reaction zone 3 from concentrated solution outlet 15 by last pipe connecting 17 then under the rolling action of gas, so moves in circles, and waste water is purified.
Solarization air cap is laid in the bottom of membrane module 10, and air constantly washes away and the vibration membrane surface, and mud can not be adhered on it, reaches to alleviate the purpose that film pollutes.
To a certain degree need to clean when membrane flux drops to, or membrane module damage need repairing, when changing, valve-off 18 is opened interface 19, promptly can take off membrane module 10 and carry out clean and maintenance.In the time of need carrying out online anti-cleaning, valve-off 18 adds scavenging solutions from water outlet 12, discharges scavenging solutions from inlet mouth 13, reaches the purpose of online anti-cleaning.
Embodiment 1:
To contain COD is 200-600mg/L, ammonia nitrogen is 50-100mg/L, and SS is that the sanitary sewage of 100-200mg/L enters baffling aeration supercharging gravity-elution membrane bioreactor by water-in, and the reactor useful volume is 80L, sludge concentration is 2000-5000mg/L, and water temperature is 10-30 ℃.The COD of water outlet is 20-60mg/L, ammonia nitrogen 0.5-15mg/L, and SS does not detect.
Embodiment 2:
To contain COD is 6000-18000mg/L, ammonia nitrogen is after the percolate elder generation of 1400-2000mg/L is the anaerobic filter processing of 63L through useful volume, enter baffling aeration supercharging gravity-elution membrane bioreactor by water-in again, the useful volume of membrane bioreactor is 80L, sludge concentration is 4000-10000mg/L, and water temperature is 15-30 ℃.The COD of water outlet is 700-1000mg/L, ammonia nitrogen 6-25mg/L, and SS does not detect.
Claims (7)
1. baffling aeration supercharging gravity-elution membrane bioreactor sewage disposal device, form by baffling aeration and biological reactor and membrane module, it is characterized in that described baffling aeration and biological reactor is a biochemical reaction zone, by dividing plate it is divided into two above reaction zones; A pipe core is installed in each reaction zone, between pipe core and the reactor wall space is arranged; The mixed solution of each reaction zone is by the channel connection of dividing plate lower end; A reaction zone top air chamber is communicated with the pipe core bottom of b reaction zone by air communicating pipe; Lower sides at the b reaction zone has water-in;
Described membrane module is a solid-liquid separating equipment, is installed in a reaction zone outside of baffling aeration and biological reactor, is lower than the mixed solution liquid level; The bottom of film silk is laid with solarization air cap in the membrane module, has water outlet on the top of membrane module sidewall, has inlet mouth in the bottom of membrane module sidewall; Bottom at membrane module has entry to mixed solution, has concentrated solution outlet at the top of membrane module; The membrane module entry to mixed solution passes through pipe connecting and the sidewall of a reaction zone and the regional connectivity between the pipe core down; The membrane module concentrated solution outlet is communicated with the pipe core of a reaction zone by last pipe connecting; Upper and lower pipe connecting all is equipped with valve, interface.
2. equipment as claimed in claim 1 is characterized in that: described baffling aeration and biological reactor is divided into reaction zone relatively independent more than two by dividing plate with it.
3. equipment as claimed in claim 1 is characterized in that, described membrane module entry to mixed solution is connected with following pipe connecting by interface, and the membrane module concentrated solution outlet is connected with last pipe connecting by interface.
5. equipment as claimed in claim 1 is characterized in that, described pipe connecting down is arranged on the outer side wall bottom of baffling aeration and biological reactor, and last pipe connecting is arranged on down the top of pipe connecting.
6. as claim 1 or 4 described equipment, it is characterized in that described interface is flange, hickey or pipe collar.
7. equipment as claimed in claim 1, it is characterized in that, its workflow is as follows: city domestic sewage or trade effluent enter b biochemical reaction zone and active sludge thorough mixing by water-in, and enter a biochemical reaction zone by the passage of dividing plate lower end, further mix with active sludge; Gas enters membrane module by inlet mouth, and the concentrated solution that carries membrane sepn enters the pipe core of a biochemical reaction zone by last pipe connecting; Gas rise to drive circulating of mixed solution inside and outside the pipe core along pipe core, and gas enters in the air chamber on a biochemical reaction zone top then; When the air pressure in the air chamber during greater than the hydraulic pressure of b biochemical reaction zone, gas enters the pipe core bottom of b biochemical reaction zone by air communicating pipe, and the inside and outside mixed solution of the pipe core that drives the b biochemical reaction zone circulates, and pollutent is decomposed and removes at biochemical reaction zone; Simultaneously, partially mixed liquid enters membrane module by following pipe connecting from entry to mixed solution, with the liquid of water inlet equivalent under total gravity head that the baffling aeration is produced drives, through the membrane filtration continuous effluent; Separated mud concentrated solution enters the pipe core of a biochemical reaction zone from concentrated solution outlet by last pipe connecting then under the rolling action of gas, so moves in circles, and waste water is purified.
8, equipment as claimed in claim 1 is characterized in that, can carry out online anti-cleaning to membrane module, and its method is that valve-off adds scavenging solution from water outlet, discharges scavenging solution from inlet mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101027662A CN1317207C (en) | 2003-10-21 | 2003-10-21 | Sewage treating apparatus with baffling, aerating, boosting and gravitationally outflowing membrane bioreactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101027662A CN1317207C (en) | 2003-10-21 | 2003-10-21 | Sewage treating apparatus with baffling, aerating, boosting and gravitationally outflowing membrane bioreactor |
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| Publication Number | Publication Date |
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| CN1609015A true CN1609015A (en) | 2005-04-27 |
| CN1317207C CN1317207C (en) | 2007-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101027662A Expired - Fee Related CN1317207C (en) | 2003-10-21 | 2003-10-21 | Sewage treating apparatus with baffling, aerating, boosting and gravitationally outflowing membrane bioreactor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486681C (en) * | 2005-06-02 | 2009-05-13 | 中国科学院生态环境研究中心 | Outer installation type gas lift circulation membrane splitter |
| CN102786188A (en) * | 2012-08-29 | 2012-11-21 | 哈尔滨工业大学 | Forward osmosis membrane bioreactor with magnetic nanoparticles serving as driving liquid |
| CN107129034A (en) * | 2017-03-07 | 2017-09-05 | 广东工业大学 | A kind of membrane bioreactor system from culture granule sludge |
| CN110655148A (en) * | 2018-06-29 | 2020-01-07 | 中石化石油工程设计有限公司 | Oil field produced water film filtering device with internal circulation surface cross flow form |
| CN111151136A (en) * | 2020-03-11 | 2020-05-15 | 陈以原 | Micro-differential pressure thickening or filtering equipment and multi-stage combined thickening or filtering device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150885A (en) * | 1984-01-18 | 1985-08-08 | Kubota Ltd | Method for recovering valuable material from organic waste liquid |
| JP2001087635A (en) * | 1999-09-28 | 2001-04-03 | Kubota Corp | Active sludge treatment device using dynamic filtration membrane |
| CN1153738C (en) * | 2001-07-24 | 2004-06-16 | 中国科学院生态环境研究中心 | Sewage treating plant with double-area gravity-elution membrane bioreactor |
-
2003
- 2003-10-21 CN CNB2003101027662A patent/CN1317207C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486681C (en) * | 2005-06-02 | 2009-05-13 | 中国科学院生态环境研究中心 | Outer installation type gas lift circulation membrane splitter |
| CN102786188A (en) * | 2012-08-29 | 2012-11-21 | 哈尔滨工业大学 | Forward osmosis membrane bioreactor with magnetic nanoparticles serving as driving liquid |
| CN102786188B (en) * | 2012-08-29 | 2013-10-30 | 哈尔滨工业大学 | Forward osmosis membrane bioreactor with magnetic nanoparticles serving as driving liquid |
| CN107129034A (en) * | 2017-03-07 | 2017-09-05 | 广东工业大学 | A kind of membrane bioreactor system from culture granule sludge |
| CN110655148A (en) * | 2018-06-29 | 2020-01-07 | 中石化石油工程设计有限公司 | Oil field produced water film filtering device with internal circulation surface cross flow form |
| CN111151136A (en) * | 2020-03-11 | 2020-05-15 | 陈以原 | Micro-differential pressure thickening or filtering equipment and multi-stage combined thickening or filtering device |
| CN111151136B (en) * | 2020-03-11 | 2024-04-09 | 陈以原 | Micro-differential pressure thickening or filtering equipment and multi-stage combined thickening or filtering device |
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| Publication number | Publication date |
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| CN1317207C (en) | 2007-05-23 |
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Granted publication date: 20070523 Termination date: 20161021 |