CN100363271C - Bubble-free oxygen supply film biological reactor - Google Patents
Bubble-free oxygen supply film biological reactor Download PDFInfo
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- CN100363271C CN100363271C CNB021594457A CN02159445A CN100363271C CN 100363271 C CN100363271 C CN 100363271C CN B021594457 A CNB021594457 A CN B021594457A CN 02159445 A CN02159445 A CN 02159445A CN 100363271 C CN100363271 C CN 100363271C
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- membrane module
- 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
Abstract
The present invention belongs to the membrane biological reactor field, and particularly relates to a closed type bubble-free oxygen supply membrane biological reactor which comprises a biological reactor unit, a membrane unit(an oxygen supply membrane module, a gas exhaust membrane module and a water separation membrane module), an oxygen bottle, a circulation pump, a peristaltic pump, a gas flowmeter, a liquid flowmeter, a clear water tank and valves, wherein the biological reactor has a cylinder shape; a bent pipe of which the angle of torsion can be arbitrarily adjusted is installed at a water inlet used for reflux in the reactor; the gas exhaust membrane module is arranged outside the biological reactor; the membrane wires and the membrane module shell of the oxygen supply membrane module, the gas exhaust membrane module and the water separation membrane module are easy to disassemble.
Description
Technical field
The invention belongs to field of membrane bioreactor, particularly a kind of foamless oxygen-supplying film bioreactor device.
Background technology
Activated sludge concentration in the membrane bioreactor is higher, can reach several to tens g/L, and the aerobic microbiological in the active sludge is big to oxygen requirement.Traditional bubbling style oxygen system, with bubble form in stirring to the Liquid Phase Diffusion oxygen supply because bubble is bigger, in liquid phase the residence time short, wherein most of oxygen has reduced oxygen transfer efficiency with the bubble water surface of overflowing.In order to improve oxygen transfer efficiency, people have developed the still formula oxygen supply of tubular fibre aerating system, and it is applied in the membrane bioreactor, i.e. the foamless oxygen-supplying membrane bioreactor.
Foamless oxygen-supplying membrane bioreactor formerly, bio-reactor are open, are unaccommodated for the water treatment that requires pure bacterium conditioned disjunction to have the volatility obnoxious flavour.(Chai Xiaoli, Zhao Youcai. the Membrane Bioreactor for Wastewater Treatment Study on Bubbleless Aeration. (the Shanghai environmental science, 2001, Vol.20, No.10:482-483)
In the design of oxygen supply membrane module, mainly contain fixed, two kinds of patterns of floatation type.Fixed foamless oxygen-supplying membrane module all is fixed on the two ends of tubular fibre in the membrane module, can not move freely, though that this kind membrane module is made is more convenient, film stops up easily, stops up the back and cleans also cumbersome.Floatation type foamless oxygen-supplying membrane module is fixed on an end of tubular fibre in the membrane module, and the other end of shutting does not fix, and fiber freely floats in water, interacts between fiber-fiber, makes film have self-purification function, has subtracted clearly the pollution of film.(Voss?M?A.Long-term?performance?of?parallel?flow，bubbleless，hollowfiber?membrane?aerators.Water?Environ.Res.，1999，71：23-30)。Floatation type foamless oxygen-supplying membrane module is formerly made complicated, and processing requirement and cost height are unsuitable for scale operation.
Summary of the invention
The object of the present invention is to provide a kind of foamless oxygen-supplying membrane bioreactor that is applicable under the pure bacterium conditioned disjunction special state.
Foamless oxygen-supplying membrane bioreactor of the present invention comprises bio-reactor 1, film unit, oxygen cylinder 4, recycle pump 8, peristaltic pump 5, gas meter 3, liquid meter 7, clear water tanks 6, valve 11 referring to Fig. 1.Film unit comprises oxygen supply membrane module 2, water sepn membrane module 10, exhaust membrane assembly 12.The bio-reactor unit is airtight cylinder type tube.It is characterized in that by bio-reactor 1 recycle pump 8, water sepn membrane module 10, the formation circulation line that is linked in sequence of valve 11 and oxygen supply membrane module 2; In bio-reactor, be used for the phegma water inlet bend pipe 18 that can adjust windup-degree arbitrarily has been installed.
Membrane module designs is detachable, is convenient to the replacing and the cleaning of film.Membrane module is made up of with package shell 15 or 16 synthetic glass tubule 13, the base 14 of band film silk, between the three by being threaded.The synthetic glass tubule 13 that has the film silk is installed on the base 14 by screw thread, and base is contained on the installing port of membrane module shell 15 or 16 by screw thread again, forms complete membrane module.Oxygen supply, exhaust membrane adopt the hydrophobic hollow fiber microporous membrane, and the water sepn film adopts the hydrophilic hollow fibre microporous membrane.Circulating outlet 19 is arranged at oxygen supply membrane module 2, water sepn membrane module 10 cylindrical outside shell tops, and the shell side has one to be recycled into water pipe 21 perpendicular to shell.Oxygen supply membrane module 2, water sepn membrane module 10 be recycled into the mouth of a river 20, circulating outlet 19 links to each other with circulation line respectively.The base of oxygen supply membrane module 2 has an inlet mouth 22-1 and gas meter 3, and oxygen or air container connect.The base of water sepn membrane module 10 has a treated water outlet 22-2 to link to each other with water outlet peristaltic pump 5, liquid meter 7, clear water tanks 6.Synthetic glass tubule 13 after being fit into oxygen supply, water sepn membrane module, the top of tubule be recycled into water pipe 21 outer walls on the top concordant.The top of exhaust membrane assembly 12 has exhaust gas inlet 23 to link to each other with bio-reactor 1, and outlet port 24 is arranged at its bottom.Different with oxygen supply membrane module, water sepn membrane module, the side of exhaust membrane assembly is not recycled into the mouth of a river 20.Exhaust membrane assembly 12 is placed on the outside of bio-reactor 1.
The principle of work of foamless oxygen-supplying membrane bioreactor of the present invention is as follows: system's running, active sludge in the bio-reactor is under the effect of recycle pump, enter the water sepn membrane module, the returned sluge of being held back by the water sepn film flows into the oxygen supply membrane module, after having absorbed the oxygen next, be circulated back to bio-reactor and continue biochemical reaction by the diffusion of the micropore on membranous wall or the membranous wall.Water purification is under the effect of peristaltic pump, and the permeate water separatory membrane flows in the clear water tanks.Water inlet bend pipe in the conditioned reaction device is to certain angle, liquid tilts to be injected in tube wall, and under the effect of reactor outer circulation pump power, liquid rotates rapidly along tube wall, gas in the reactor is pressed against the central authorities of reactor, is discharged outside the reactor by the exhaust membrane assembly from reactor head.Liquid, gas motion position, the direction of motion difference, thus gas, liquid reach effective separation.
Foamless oxygen-supplying membrane reactor of the present invention can satisfy the water treatment needs under sterile culture or the special conditions because bio-reactor is to work in confined conditions.Liquid rotates the centrifugal force that produces in bio-reactor makes liquid obtain stirring, high dispersing, and the waste gas that produces in liquid and the reactor is separated.
The making of oxygen supply, exhaust, water sepn membrane module is simple, is beneficial to scale operation, reduces cost.After operation for some time,, can clean and change the film silk with the synthetic glass tubule taking-up of band film silk.In the oxygen supply, water sepn membrane module the top of synthetic glass tubule be recycled into pipe outer wall on push up concordant, liquid enters membrane module, under the effect of waterpower, the film silk with the current parallel direction on scatter and float, reduce the deposition of mud, alleviate film and pollute on film silk surface.Exhaust membrane directly is not placed in the reactor, has prevented the pollution of mixed solution to gas film, guarantees the high-level efficiency of gas film combustion gas.
Description of drawings
Fig. 1. the process flow sheet of foamless oxygen-supplying membrane bioreactor of the present invention;
Fig. 2. the side-view of the oxygen supply of foamless oxygen-supplying membrane bioreactor of the present invention, water sepn membrane module;
Fig. 3. the side-view of the exhaust membrane assembly of foamless oxygen-supplying membrane bioreactor of the present invention;
Fig. 4. the vertical view of the oxygen supply of foamless oxygen-supplying membrane bioreactor of the present invention, water sepn membrane module
Fig. 5. the synthetic glass tubule of the oxygen supply of foamless oxygen-supplying membrane bioreactor of the present invention, water sepn, exhaust membrane assembly, base side-view;
Fig. 6. the oxygen supply of foamless oxygen-supplying membrane bioreactor of the present invention, water sepn membrane module shell side view;
Fig. 7. the exhaust membrane package shell side-view of foamless oxygen-supplying membrane bioreactor of the present invention;
Fig. 8. the side-view of the bio-reactor of foamless oxygen-supplying membrane bioreactor of the present invention.
Reference numeral
1. bioreactor 2. oxygen supply membrane modules 3. gas flowmeters 4. oxygen cylinders 5. peristaltic pumps 6. clear water tanks 7. fluid flowmeters 8. circulating pumps 9. Pressure gauges 10. moisture are recycled into the mouth of a river 21. from 15. oxygen supplys of membrane module 11. valves 12. exhaust membrane assemblies 13. lucite tubules 14. bases, moisture from membrane module shell 16. exhaust membrane package shells 17. film silks 18. bend pipes 19. circulating outlets 20. and are recycled into water pipe 22. oxygen air inlets (22-1) or treated water outlet (22-2) 23. exhaust gas inlet 24. outlet ports
Embodiment
Bio-reactor unit, oxygen supply membrane module, exhaust membrane assembly, water sepn membrane module, recycle pump, peristaltic pump, gas meter, liquid meter, valve, oxygen cylinder, tensimeter, clear water tanks are installed device by Fig. 1.After the device running, active sludge in the bio-reactor is under the effect of recycle pump, enter membrane module from the lateral mouth of a river that is recycled into of water sepn membrane module, the returned sluge of being held back by the water sepn film flows out from the top circulating outlet of water sepn membrane module, is recycled into the mouth of a river by the side of oxygen supply membrane module, flow into the oxygen supply membrane module, after absorbing oxygen, come out, come back to and continue biochemical reaction in the reactor from the circulating outlet at oxygen supply membrane module top.Water purification is under the effect of peristaltic pump, and the permeate water separatory membrane flows in the clear water tanks.Adjust to certain angle with being used for the water inlet bend pipe that returned sluge enters in the reactor, under the effect of recycle pump, liquid is under the rapid rotating fluid of tube wall, and the waste gas that is produced in the reactor is pressed against the central authorities of pipe, is discharged outside the reactor by the exhaust membrane assembly outside the reactor from reactor head.
Oxygen supply, water sepn membrane module are formed by having externally threaded synthetic glass tubule, base and membrane module shell.The exhaust membrane assembly is formed by having externally threaded synthetic glass tubule, base and membrane module shell.A branch of film silk one end of length unanimity is shut, an end of not shutting uses epoxy encapsulation in the synthetic glass tubule, the synthetic glass tubule that will have the film silk again screws in female synthetic glass base, and base is contained on the installing port of membrane module shell by screw thread and just forms complete oxygen supply, exhaust, water sepn membrane module.After operation for some time, the synthetic glass tubule that has the film silk can be taken out, clean or replacing film silk, the maintenance of film is very convenient.
In system's operational process, dissolved oxygen concentration in the results of regular determination bio-reactor, dissolved oxygen concentration is stabilized in 2-3mg/L.Effluent quality is measured water quality clarification, water outlet COD＜50mg/L.
Claims (5)
1. a foamless oxygen-supplying membrane bioreactor comprises bio-reactor (1), film unit, oxygen cylinder (4), recycle pump (8), tensimeter (9), peristaltic pump (5), gas meter (3), liquid meter (7), clear water tanks (6) and valve (11); Described film unit comprises oxygen supply membrane module (2), water sepn membrane module (10), exhaust membrane assembly (12); It is characterized in that by bio-reactor (1) recycle pump (8), water sepn membrane module (10), the formation circulation line that is linked in sequence of valve (11) and oxygen supply membrane module (2); Oxygen supply membrane module (2) base has an oxygen inlet mouth (22-1) to be connected with gas meter (3), oxygen cylinder (4); Water sepn membrane module (10) base has a treated water outlet (22-2), links to each other with water outlet peristaltic pump (5), liquid meter (7), clear water tanks (6); The circulating outlet (19) at oxygen supply membrane module (2) and water sepn membrane module (10) top, the lateral water pipe (21) that is recycled into link to each other with circulation line; Exhaust membrane assembly (12) top has exhaust gas inlet (23) to link to each other with bio-reactor (1), and outlet port (24) is arranged at its bottom; Exhaust membrane assembly (12) is put the outside that is contained in bio-reactor (1); Described bio-reactor (1) is characterized in that it being airtight cylinder type tube, and bio-reactor (1) inherence is used for the water inlet of phegma, and the bend pipe (18) that can adjust windup-degree arbitrarily is installed.
2. foamless oxygen-supplying membrane bioreactor according to claim 1, it is characterized in that described oxygen supply membrane module (2), exhaust membrane assembly (12), water sepn membrane module (10) be made up of the synthetic glass tubule (13) that has the film silk, base (14) and cylindrical outside shell (15 or 16), the synthetic glass tubule (13) of band film silk is installed on the base (14) by screw thread, and base (14) is contained on the installing port of membrane module shell (15 or 16) by screw thread again becomes complete membrane module.
3. foamless oxygen-supplying membrane bioreactor according to claim 1, circulating outlet (19) is arranged at the top that it is characterized in that described oxygen supply membrane module and water sepn membrane module shell (15), and one side is equipped with one and is recycled into water pipe (21) perpendicular to shell in the bottom; Synthetic glass tubule (13) is after being fit into membrane module, and its top is concordant with top on the outer wall that is recycled into water pipe (21).
4. foamless oxygen-supplying membrane bioreactor according to claim 1 is characterized in that described oxygen supply membrane module (2) and exhaust membrane assembly (12), and membrane module comprises the film silk, and the film silk that is adopted is the hydrophobic hollow fiber microporous membrane.
5. foamless oxygen-supplying membrane bioreactor according to claim 1 is characterized in that described water sepn membrane module (10), and membrane module comprises the film silk, and the film silk that is adopted is the hydrophilic hollow fibre microporous membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021594457A CN100363271C (en) | 2002-12-31 | 2002-12-31 | Bubble-free oxygen supply film biological reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021594457A CN100363271C (en) | 2002-12-31 | 2002-12-31 | Bubble-free oxygen supply film biological reactor |
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| CN1511792A CN1511792A (en) | 2004-07-14 |
| CN100363271C true CN100363271C (en) | 2008-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021594457A Expired - Fee Related CN100363271C (en) | 2002-12-31 | 2002-12-31 | Bubble-free oxygen supply film biological reactor |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090311777A1 (en) | 2006-04-12 | 2009-12-17 | Wade Edwards | Bioreactor |
| CN101985597B (en) * | 2010-09-08 | 2013-03-06 | 上海国强生化工程装备有限公司 | Animal cell reactor with bubble-free aerating system |
| CN102241431A (en) * | 2010-09-27 | 2011-11-16 | 中国人民解放军总装备部航天医学工程研究所 | Oxygen supply device for space wastewater treatment |
| CN102908963A (en) * | 2011-08-01 | 2013-02-06 | 江苏欧赛德钢涂有限公司 | Ceramic membrane filtering apparatus for transferring ethanol by using CO |
| CN102992480B (en) * | 2012-12-17 | 2014-04-16 | 清华大学 | Device and process for carrying out autotrophic denitrification treatment on nitrate nitrogen in sewage based on non-foaming hydrogen supply |
| CN108147527A (en) * | 2017-02-24 | 2018-06-12 | 天津海之凰科技有限公司 | A kind of EHBR black and odorous waters administering method |
| CN108439578A (en) * | 2018-04-25 | 2018-08-24 | 天津海之凰科技有限公司 | A kind of combination curtain reinforcing coupled biological membrane reactor（EHBR）Water bodies of rivers and lakes purified in situ apparatus system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5277480A (en) * | 1975-12-23 | 1977-06-29 | Stanley Electric Co Ltd | Combustion system for waste solution |
| JPS61245899A (en) * | 1985-04-24 | 1986-11-01 | Sanki Eng Co Ltd | Treatment of organic waste water |
| JPH05185092A (en) * | 1992-01-10 | 1993-07-27 | Kubota Corp | Waste water disposing device |
| FR2822150A1 (en) * | 2001-03-15 | 2002-09-20 | Vivendi Water Systems | Water treatment procedure using plant with biological reactor and filter membrane employs oxygen-lean gas to clean membrane |
-
2002
- 2002-12-31 CN CNB021594457A patent/CN100363271C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5277480A (en) * | 1975-12-23 | 1977-06-29 | Stanley Electric Co Ltd | Combustion system for waste solution |
| JPS61245899A (en) * | 1985-04-24 | 1986-11-01 | Sanki Eng Co Ltd | Treatment of organic waste water |
| JPH05185092A (en) * | 1992-01-10 | 1993-07-27 | Kubota Corp | Waste water disposing device |
| FR2822150A1 (en) * | 2001-03-15 | 2002-09-20 | Vivendi Water Systems | Water treatment procedure using plant with biological reactor and filter membrane employs oxygen-lean gas to clean membrane |
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| CN1511792A (en) | 2004-07-14 |
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Granted publication date: 20080123 Termination date: 20111231 |