CN204162569U - A kind of membrane bioreactor - Google Patents
A kind of membrane bioreactor Download PDFInfo
- Publication number
- CN204162569U CN204162569U CN201420546716.7U CN201420546716U CN204162569U CN 204162569 U CN204162569 U CN 204162569U CN 201420546716 U CN201420546716 U CN 201420546716U CN 204162569 U CN204162569 U CN 204162569U
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- Prior art keywords
- biochemical reaction
- reaction zone
- membrane
- zone
- membrane bioreactor
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- 239000012528 membrane Substances 0.000 title claims abstract description 91
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 70
- 238000005273 aeration Methods 0.000 claims abstract description 37
- 238000000926 separation method Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000010992 reflux Methods 0.000 claims description 19
- 239000012764 mineral filler Substances 0.000 claims description 7
- 239000012510 hollow fiber Substances 0.000 claims description 3
- 238000001471 micro-filtration Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 239000010865 sewage Substances 0.000 description 10
- 244000005700 microbiome Species 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000010802 sludge Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a kind of membrane bioreactor, and it comprises biochemical reaction zone and membrane separation zone; Described biochemical reaction zone overflow plate is divided into the first biochemical reaction zone and the second biochemical reaction zone, and the second biochemical reaction zone separates with membrane separation zone dividing plate, and described dividing plate is provided with opening in bottom; Described first top, biochemical reaction zone is provided with water inlet pipe, and the exit end of described water inlet pipe is positioned at bottom the first biochemical reaction zone; Described biochemical reaction zone is provided with filler; Described membrane separation zone is provided with membrane module; Shore pipe is provided with bottom the first described biochemical reaction zone and membrane separation zone; Described membrane bioreactor is provided with outlet system, return-flow system and blast aeration system.A kind of membrane bioreactor that the utility model provides, to membrane module pollute little, membrane module long service life, save take up an area, investment and working cost low.
Description
Technical field
The utility model relates to water treating equipment, is specifically related to a kind of membrane bioreactor.
Background technology
Membrane bioreactor (Membrane Bioreactor, MBR) be the combination of high performance membrane isolation technique and traditional activated sludge process, it instead of the second pond in traditional activated sludge process system with film separating system, by the mechanical retention effect of film, improve microorganism concn in reactor, effectively raise the volumetric loading of reactor, reduce sludge loading, COD, N, P all have higher purification efficiency, effluent quality is good, compact equipment, is easy to automatic control, and operational management is convenient.
Membrane bioreactor is the study hotspot of water treatment field research both at home and abroad at present as a kind of novel wastewater treatment and reuse technology, is also widely used in medium and small sanitary sewage and Industrial Wastewater Treatment station simultaneously, achieves good treatment effect.But, because the microvoid structure of membrane module itself forms, make the easy contamination and plugging of membrane module, cleaning be difficult and work-ing life is short, the applying and develop of these problems affect membrane bioreactor.Utility model patent CN02104180.6 discloses a kind of fluidized bed type-membrane bioreactor, this utility model utilizes the filler being adsorbed with microorganism to carry out alternative active sludge, certain filteration can be played, but easily there is back mixing and affect its effect of filtering in this equipment, makes membrane module be polluted.Utility model patent CN201320475373.5 discloses a kind of combined type twin-stage membrane bioreactor; this utility model added one-level membrane filtration and carrys out protective membrane assembly from pollution before sewage enters membrane module district, but this grade of film still exists susceptible to plugging problem.
Meanwhile, due to the further raising of reusing sewage water quality standard, how to alleviate membrane module and pollute and extend its work-ing life, reduce the running cost of membrane bioreactor and become the key that membrane bioreactor promotes.
Utility model content
The purpose of this utility model be to provide a kind of intensive degree high, membrane module polluted to little, membrane module long service life, save take up an area, investment and the low membrane bioreactor of working cost.
The utility model adopts following technical scheme:
A kind of membrane bioreactor of the utility model, it comprises biochemical reaction zone and membrane separation zone; Described biochemical reaction zone overflow plate is divided into the first biochemical reaction zone and the second biochemical reaction zone, and the second biochemical reaction zone separates with membrane separation zone dividing plate, and described dividing plate is provided with opening in bottom; Described first top, biochemical reaction zone is provided with water inlet pipe, and the exit end of described water inlet pipe is positioned at bottom the first biochemical reaction zone; Described first biochemical reaction zone and the second biochemical reaction zone are provided with filler; Described membrane separation zone is provided with membrane module; Shore pipe is provided with bottom the first described biochemical reaction zone and membrane separation zone; Described membrane bioreactor is provided with outlet system, return-flow system and blast aeration system.
Wherein, described filler is granular porous mineral filler.
Wherein, described membrane module is submerged hollow fiber microfiltration membrane curtain type film assembly.
Wherein, described outlet system comprises outlet conduit and is arranged on outlet conduit goes out water pump, and outlet conduit is connected with membrane module.
Wherein, described return-flow system comprises reflux line and is arranged on the reflux pump on reflux line, and the entrance end of reflux line is arranged at the bottom of membrane separation zone, and the exit end of reflux line connects the water-in of the first biochemical reaction zone.
Wherein, described blast aeration system comprises airduct and is arranged at the blower fan of airduct entrance end, and wind tube outlet end is connected in the 3rd microporous aeration device bottom the first microporous aeration device bottom the first biochemical reaction zone, the second microporous aeration device bottom the second biochemical reaction zone and membrane separation zone respectively.
Wherein, it is characterized in that between described airduct and the first microporous aeration device, being provided with the first control air valve; The second control air valve is provided with between described airduct and the second microporous aeration device; Be provided with the 3rd between described airduct and the 3rd microporous aeration device and control air valve.
Positively effect of the present utility model is as follows:
(1) sewage overflow to the second biochemical reaction zone after the first biochemical reaction zone process, sedimentation the solid particulate filtered in a part of sewage, preliminary biochemical treatment has been carried out to sewage in first biochemical reaction zone simultaneously, alleviate the load of the second biochemical reaction zone, improve processing efficiency, enhance treatment effect.
(2) second biochemical reaction zones are communicated with bottom membrane separation zone, and sewage, after the filtration and process of filler in the second biochemical reaction zone, reduces the pollution of membrane module, the work-ing life of membrane component and prolong.
Be provided with shore pipe bottom (3) first biochemical reaction zones and membrane separation zone and can discharge bottom sludge, realize solid-liquid and discharge respectively, be beneficial to later use or reprocessing.
(4) return-flow system by sewage backflow to the first biochemical reaction zone after process, can repeat process, improves effluent quality.
(5) blast aeration system is separately positioned on bottom the first biochemical reaction zone, the second biochemical reaction zone and membrane separation zone, control respectively by the first control air valve, the second control air valve and the 3rd control air valve, by the control of the aeration rate to the first biochemical reaction zone, the second biochemical reaction zone, microorganism on mineral filler can realize anoxic or aerobic reaction runs, and carries out nitrated, denitrification and aerobic degradation for the organism in sewage.The aeration intensity that independent controlling diaphragm disengaging zone is different, can realize carrying out abundant cross-flow purging to membrane module, film is made to blow lower vibrations at air, make to be attached to film surface mass to come off, alleviate the pollution of the particulate matters such as mud in the water outlet of bio-reaction zone, the aging microbial film that comes off for membrane module.
Accompanying drawing explanation
The structural representation of a kind of membrane bioreactor of Fig. 1 the utility model.
The blast aeration system structural representation of a kind of membrane bioreactor of Fig. 2 the utility model.
In figure, 1 first biochemical reaction zone, 2 second biochemical reaction zones, 3 membrane separation zones, 4 overflow plates, 5 dividing plates, 6 membrane modules, 701 outlet conduits, 702 go out water pump, 801 reflux lines, 802 reflux pumps, 901 airducts, 902 blower fans, 903 first microporous aeration devices, 904 second microporous aeration devices, 905 the 3rd microporous aeration devices, 906 first control air valves, 907 second control air valves, 908 the 3rd control air valve, 10 fillers, 11 shore pipes, 12 water inlet pipes.
Embodiment
As shown in figure 1 and 2, a kind of membrane bioreactor of the utility model, comprises biochemical reaction zone and membrane separation zone; Described biochemical reaction zone overflow plate 4 is divided into the first biochemical reaction zone 1 and the second biochemical reaction zone 2, biochemical reaction zone 2, second separates with membrane separation zone 3 dividing plate 5, and described dividing plate 5 is provided with opening in bottom; Described first top, biochemical reaction zone 1 is provided with water inlet pipe 12, and the exit end of described water inlet pipe 12 is positioned at bottom the first biochemical reaction zone 1; Described first biochemical reaction zone 1 and the second biochemical reaction zone 2 are provided with filler 10; Described membrane separation zone 3 is provided with membrane module 6; Shore pipe 11 is provided with bottom the first described biochemical reaction zone 1 and membrane separation zone 3; Described membrane bioreactor is provided with outlet system, return-flow system and blast aeration system.Described filler 10 is granular porous mineral filler.Be specially volcanics material, particle diameter be 2 ~ 4cm, porosity is 50%, filling rate 75%.First can cultivate the microorganism needed for water treatment during use, then filler 10 is added in the microorganism mixed solution after cultivation, make microorganic adhesion on filler 10.Described membrane module 6 is submerged hollow fiber microfiltration membrane curtain type film assembly.Described outlet system comprises outlet conduit 701 and is arranged on outlet conduit goes out water pump 702, and outlet conduit 701 is connected with membrane module 6.The reflux pump 802 that described return-flow system comprises reflux line 801 and is arranged on reflux line, the entrance end of reflux line 801 is arranged at the bottom of membrane separation zone 3, and the exit end of reflux line 801 connects the water-in 12 of the first biochemical reaction zone.Described blast aeration system comprises airduct 901 and is arranged at the blower fan 902 of airduct 901 entrance end, and airduct 902 exit end is connected in the second microporous aeration device 904 bottom the first microporous aeration device 903, second biochemical reaction zone 2 bottom the first biochemical reaction zone 1 and the 3rd microporous aeration device 905 bottom membrane separation zone 3 respectively.The first control air valve 906 is provided with between described airduct 902 and the first microporous aeration device 903; The second control air valve 907 is provided with between described airduct 902 and the second microporous aeration device 904; Be provided with the 3rd between described airduct 902 and the 3rd microporous aeration device 905 and control air valve 908.
Waste water is removed through grid and to be carried out runoff investigation after larger floating matter, suspended substance and enter the first biochemical reaction zone 1 by the water-in 12 of the first biochemical reaction zone after the pre-treatment such as water quality is balanced, carried out biochemical treatment by the porous mineral filler 10 pairs of waste water being attached with microorganism being arranged at the first biochemical reaction zone 1 and filtered out a part of solid particulate, a part of mud is discharged by the mud discharging mouth 11 be arranged at bottom the first biochemical reaction zone.Waste water after process is through overflow plate 4 overflow to the second biochemical reaction zone 2, and the porous mineral filler 10 pairs of waste water being attached with microorganism being arranged at the second biochemical reaction zone 2 carry out biochemical treatment and filter out a part of solid particulate.Respectively the aeration rate of the first microporous aeration device 903 and the second microporous aeration device 904 is controlled by the first control air valve 906 and the second control air valve 907, microorganism on porous mineral filler can realize anoxic or aerobic reaction runs, and carries out nitrated, denitrification and aerobic degradation for the organism in sewage.Waste water after the second biochemical reaction zone 2 processes enters membrane separation zone 3 below dividing plate 5, controlled by the 3rd microporous aeration device 905 of the 3rd control air valve 908 pairs of membrane separation zones 3, realize different aeration intensities, thus abundant cross-flow purging is carried out to membrane module 6, film is made to blow lower vibrations at air, make to be attached to film surface mass to come off, alleviate the pollution of the particulate matters such as mud in the water outlet of bio-reaction zone, the aging microbial film that comes off for membrane module 6.Membrane module 6 connects outlet conduit 701 and goes out water pump 702, goes out water pump 702 and aspirates water outlet and realize mud-water separation, remove the organic substance in water further.For obtaining better treatment effect, water-in 12 pairs of waste water of waste water pump drainage to the first biochemical reaction zone can be carried out reprocessing by the reflux line 801 be arranged at bottom membrane separation zone and reflux pump 802.Mud is discharged by the mud discharging mouth 11 be arranged at bottom membrane separation zone 3.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (7)
1. a membrane bioreactor, is characterized in that it comprises biochemical reaction zone and membrane separation zone; Described biochemical reaction zone overflow plate (4) is divided into the first biochemical reaction zone (1) and the second biochemical reaction zone (2), and the second biochemical reaction zone (2) separate with dividing plate (5) with membrane separation zone (3), and described dividing plate (5) is provided with opening in bottom; Described first biochemical reaction zone (1) top is provided with water inlet pipe (12), and the exit end of described water inlet pipe (12) is positioned at bottom, the first biochemical reaction zone (1); Described first biochemical reaction zone (1) and the second biochemical reaction zone (2) are provided with filler (10); Described membrane separation zone (3) is provided with membrane module (6); Described the first biochemical reaction zone (1) and membrane separation zone (3) bottom are provided with shore pipe (11); Described membrane bioreactor is provided with outlet system, return-flow system and blast aeration system.
2. a kind of membrane bioreactor according to claim 1, is characterized in that described filler (10) is granular porous mineral filler.
3. a kind of membrane bioreactor according to claim 1, is characterized in that described membrane module (6) is for submerged hollow fiber microfiltration membrane curtain type film assembly.
4. a kind of membrane bioreactor according to claim 1, it is characterized in that described outlet system comprises outlet conduit (701) and is arranged on and outlet conduit goes out water pump (702), outlet conduit (701) is connected with membrane module (6).
5. a kind of membrane bioreactor according to claim 1, it is characterized in that described return-flow system comprises reflux line (801) and is arranged on the reflux pump (802) on reflux line, the entrance end of reflux line (801) is arranged at the bottom of membrane separation zone (3), and the exit end of reflux line (801) connects the water-in (12) of the first biochemical reaction zone.
6. a kind of membrane bioreactor according to claim 1, it is characterized in that described blast aeration system comprises airduct (901) and is arranged at the blower fan (902) of airduct (901) entrance end, airduct (902) exit end is connected in the first microporous aeration device (903), second microporous aeration device (904) of the second biochemical reaction zone (2) bottom and the 3rd microporous aeration device (905) of membrane separation zone (3) bottom bottom the first biochemical reaction zone (1) respectively.
7. a kind of membrane bioreactor according to claim 6, is characterized in that being provided with the first control air valve (906) between described airduct (902) and the first microporous aeration device (903); The second control air valve (907) is provided with between described airduct (902) and the second microporous aeration device (904); Be provided with the 3rd between described airduct (902) and the 3rd microporous aeration device (905) and control air valve (908).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546716.7U CN204162569U (en) | 2014-09-23 | 2014-09-23 | A kind of membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546716.7U CN204162569U (en) | 2014-09-23 | 2014-09-23 | A kind of membrane bioreactor |
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| Publication Number | Publication Date |
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| CN204162569U true CN204162569U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420546716.7U Expired - Fee Related CN204162569U (en) | 2014-09-23 | 2014-09-23 | A kind of membrane bioreactor |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347621A (en) * | 2015-11-14 | 2016-02-24 | 常州大学 | Novel MBR membrane bioreactor sewage treatment device |
| CN105347620A (en) * | 2015-11-14 | 2016-02-24 | 常州大学 | Membrane material-modified membrane bioreactor (MBR) |
-
2014
- 2014-09-23 CN CN201420546716.7U patent/CN204162569U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347621A (en) * | 2015-11-14 | 2016-02-24 | 常州大学 | Novel MBR membrane bioreactor sewage treatment device |
| CN105347620A (en) * | 2015-11-14 | 2016-02-24 | 常州大学 | Membrane material-modified membrane bioreactor (MBR) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20190923 |