CN202152307U - Immersed type membrane bioreactor - Google Patents
Immersed type membrane bioreactor Download PDFInfo
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- CN202152307U CN202152307U CN2011201488527U CN201120148852U CN202152307U CN 202152307 U CN202152307 U CN 202152307U CN 2011201488527 U CN2011201488527 U CN 2011201488527U CN 201120148852 U CN201120148852 U CN 201120148852U CN 202152307 U CN202152307 U CN 202152307U
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Abstract
An immersed type membrane bioreactor mainly comprises a membrane tank, membrane frames, membrane assemblies and flow guide partition plates and is characterized in that a horizontal flow water inlet and a water inlet distribution portion are arranged at the bottom of the membrane tank, membrane frames are arranged in the membrane tank, and vertical flow guide partition plate are positioned between membrane frames. Membrane assemblies formed by membranes and membrane silk are vertically positioned in membrane frames, air purging pipes of densely arranged holes are arranged on lower portions of membrane frames, tops of membrane assemblies are kept in shallow water layer thick water portions lower than 500 mm, and the upper edge of the membrane tank is provided with a weir type water outlet. Compared with the prior art, the membrane tank structure of the immersed type bioreactor enables water flow and purging air flow to flow upwards, thereby keeping good self cleaning effects. A space water distribution method at the bottom of the membrane tank enables service life of membranes to be prolonged. A regular membrane cleaning method is utilized, thereby effectively preventing membranes from being pollute and enabling membrane flux to be continuously stable for a long time. The immersed type membrane bioreactor is suitable for membrane biological treatment of sewage of biochemical aeration tanks.
Description
Technical field
The utility model belongs to the biologic treating technique of waste water or sewage, and particularly a kind of submerged membrane bio-reactor specifically, relates to the structure formation of a kind of submerged membrane bio-reactor (MBR) membrane cisterna.
Background technology
At present worldwide, to the processing of waste water or sewage, membrane bioreactor just is being used widely with unprecedented speed and is fast-developing, has become one of sewage water treatment method that people the most generally adopt.But pollute owing to can not effectively prevent film, lack effective mulch film purging method, caused membrane flux to continue to descend; The WP of film raises, and makes the water production rate of film system be difficult to keep constant, and system's power consumption increases; Reduce the work-ing life of film, and the maintenance workload of film system increases.The applicant is through constantly exploring and experiment, proposes the membrane cisterna structure formation of a kind of quite easy submerged membrane bio-reactor MBR, so that effectively prevent the film pollution, and forms effective film cleaning model.
Summary of the invention
The aim of the utility model is to overcome generally run in the present membrane bioreactor system application process in service and can't effectively prevents the film pollution and can't carry out effective film cleaning; Cause film flux system decay and influence the problem of membrane lifetime; A kind of film pollution that can guarantee effectively to lower is provided; Effective cleaning membrane system, thus the submerged membrane bio-reactor of membrane flux effectively kept.
To achieve these goals; The utility model adopts following technical scheme: a kind of submerged membrane bio-reactor, mainly form by membrane cisterna, film frame, membrane module, diaphragm, and be provided with horizontal flow water-in and water inlet water distribution zone in the membrane cisterna bottom; In membrane cisterna, arrange the film frame is set; Vertical diaphragm is set between the film frame, in the film frame, vertically arranges the membrane module that diaphragm or film silk constitute, be provided with the air purge pipe of solid matter hole in film frame bottom; Form current and gaseous purge stream from lower to upper, perpendicular to the concurrent of membrane filtration water (flow) direction; The membrane module top keeps≤500 millimeters thin water layer, is provided with the water outlet of crest of weir form in the membrane cisterna upper edge, and the dense pool of formation film top of the trellis is quick, the drainage pattern of transverse flow.
The utility model compared with prior art has following beneficial effect:
The membrane cisterna structure of membrane bioreactor flows current and gaseous purge stream in the same way from bottom to top, makes water pollutant be difficult on film, adhering to; Especially hollow-fibre membrane silk; Under the acting in conjunction of current and air-flow, effectively swing keeps good self-cleaning effect in water.Membrane cisterna bottom space water distribution mode can effectively reduce PM for particulate matter such as silt and be entrained into membrane module, can prevent that again water water impact film surface into from making the situation of film forming physical abuse and taking place, thus the work-ing life of improving film.Adopt regular film cleaning way, the effectively generation of block film pollution, thus guaranteed the long-time continual and steady of membrane flux.The utility model is applicable to the film biological treatment to biochemical aeration tank sewage.
Description of drawings
Fig. 1 is the organigram of a kind of submerged membrane bio-reactor of the utility model
Among the figure, 1-film frame, 2-membrane module, 3-air purge pipe, 4-diaphragm, the 5-water distribution zone of intaking, the dense pool of 6-
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described
Shown in accompanying drawing 1, a kind of submerged membrane bio-reactor mainly is made up of membrane cisterna, film frame, membrane module, diaphragm; Be provided with horizontal flow water-in and water inlet water distribution zone 5 in the membrane cisterna bottom, in membrane cisterna, arrange film frame 1 is set, vertical diaphragm 4 is set between the film frame; The vertical membrane module 2 of arranging that diaphragm or film silk constitute in the film frame; Be provided with the air purge pipe 3 of solid matter hole in film frame bottom, form current and gaseous purge stream from lower to upper, perpendicular to the concurrent of membrane filtration water (flow) direction; The membrane module top keeps≤500 millimeters the dense pool 6 of thin water layer, is provided with the water outlet of crest of weir form in the membrane cisterna upper edge, and the dense pool of formation film top of the trellis is quick, the drainage pattern of transverse flow.
The method of use of the utility model: through the water-in entering membrane cisterna of the mixed solution (active sludge and the sewage mixture in the aeration tank) after the biochemical aeration tank processing from membrane cisterna, flowing through into, water water distribution zone 5 is assigned to each membrane module bottom.Because the guide effect of diaphragm 4 is arranged, mixed solution is upwards flowed by each membrane module bottom, to the dense pool 6 on membrane cisterna top.Air purge pipe 3 provides scavenging air, because the diaphragm effect forms gaseous purge stream and ascending current and effectively prevents the concurrent that film pollutes.Flow in the thin dense water layer of liquid concentrator (extracting the concentrated active sludge after producing water) on top in dense pool, membrane cisterna top through membrane module; Under the stirring of the air purge pipe sweep gas of solid matter hole, change over horizontal flow to flowing out, be back to biochemical aeration tank from overflow weir.
When membrane cisterna cleans; Earlier the mixed solution in the membrane cisterna is discharged from the membrane cisterna evacuation port; The chemical agent solution that to filter back water or cleaning water adding 100～200 mg/litre Youxiaolin or 0.1～1% hydrochloric acid or sulfuric acid allotment again imports from water-in; Until with the whole submergences of membrane module, utilize to leave standstill to combine to carry out the film cleaning with air purge.
Claims (1)
1. submerged membrane bio-reactor; Mainly form, it is characterized in that, be provided with horizontal flow water-in and water inlet water distribution zone in the membrane cisterna bottom by membrane cisterna, film frame, membrane module, diaphragm; In membrane cisterna, arrange the film frame is set; Vertical diaphragm is set between the film frame, in the film frame, vertically arranges the membrane module that diaphragm and film silk constitute, be provided with the air purge pipe of solid matter hole in film frame bottom; The membrane module top keeps≤500 millimeters the dense pool of thin water layer, is provided with the water outlet of crest of weir form in the membrane cisterna upper edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201488527U CN202152307U (en) | 2011-05-12 | 2011-05-12 | Immersed type membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201488527U CN202152307U (en) | 2011-05-12 | 2011-05-12 | Immersed type membrane bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202152307U true CN202152307U (en) | 2012-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201488527U Expired - Lifetime CN202152307U (en) | 2011-05-12 | 2011-05-12 | Immersed type membrane bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202152307U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058371A (en) * | 2012-12-31 | 2013-04-24 | 西安建筑科技大学 | Composite membrane bioreactor for improving particle size distribution of activated sludge and microenvironment |
| CN103212301A (en) * | 2013-04-28 | 2013-07-24 | 哈尔滨工业大学 | Ultrafiltration membrane pool with secondary on-line coagulation function |
| CN103508558A (en) * | 2013-07-16 | 2014-01-15 | 中石化宁波工程有限公司 | Submerged mold base |
| CN106348530A (en) * | 2016-09-30 | 2017-01-25 | 南通市康桥油脂有限公司 | Treatment method for glycerine concentrated sewage of stearic acid production |
| CN108499364A (en) * | 2017-02-25 | 2018-09-07 | 新乡市新能环保工程有限公司 | Three layers of immersed type flat plate membrane component |
-
2011
- 2011-05-12 CN CN2011201488527U patent/CN202152307U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058371A (en) * | 2012-12-31 | 2013-04-24 | 西安建筑科技大学 | Composite membrane bioreactor for improving particle size distribution of activated sludge and microenvironment |
| CN103212301A (en) * | 2013-04-28 | 2013-07-24 | 哈尔滨工业大学 | Ultrafiltration membrane pool with secondary on-line coagulation function |
| CN103212301B (en) * | 2013-04-28 | 2015-01-21 | 哈尔滨工业大学 | Ultrafiltration membrane pool with secondary on-line coagulation function |
| CN103508558A (en) * | 2013-07-16 | 2014-01-15 | 中石化宁波工程有限公司 | Submerged mold base |
| CN106348530A (en) * | 2016-09-30 | 2017-01-25 | 南通市康桥油脂有限公司 | Treatment method for glycerine concentrated sewage of stearic acid production |
| CN108499364A (en) * | 2017-02-25 | 2018-09-07 | 新乡市新能环保工程有限公司 | Three layers of immersed type flat plate membrane component |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Meineng Environmental Protection Technology Co.,Ltd. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120229 |
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| CX01 | Expiry of patent term | ||
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Addressee: Beijing Meineng Environmental Protection Technology Co.,Ltd. The person in charge Document name: Notice of expiration and termination of patent right |
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| DD01 | Delivery of document by public notice |