CN202610021U - External anaerobic membrane bioreactor - Google Patents

External anaerobic membrane bioreactor Download PDF

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Publication number
CN202610021U
CN202610021U CN2012201847401U CN201220184740U CN202610021U CN 202610021 U CN202610021 U CN 202610021U CN 2012201847401 U CN2012201847401 U CN 2012201847401U CN 201220184740 U CN201220184740 U CN 201220184740U CN 202610021 U CN202610021 U CN 202610021U
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CN
China
Prior art keywords
membrane
anaerobic
bioreactor
biological reactor
anaerobic biological
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012201847401U
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Chinese (zh)
Inventor
吴东雷
王炜
杨治中
田光明
金中华
金楠洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANJI FENGCHUN SEWAGE TREATMENT Co Ltd
Zhejiang University ZJU
Original Assignee
ANJI FENGCHUN SEWAGE TREATMENT Co Ltd
Zhejiang University ZJU
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Application filed by ANJI FENGCHUN SEWAGE TREATMENT Co Ltd, Zhejiang University ZJU filed Critical ANJI FENGCHUN SEWAGE TREATMENT Co Ltd
Priority to CN2012201847401U priority Critical patent/CN202610021U/en
Application granted granted Critical
Publication of CN202610021U publication Critical patent/CN202610021U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • Y02W10/12

Abstract

The utility model discloses an external anaerobic membrane bioreactor, which comprises an adjusting tank, an anaerobic bioreactor and a membrane box. A water distribution pipe is arranged at the bottom of the anaerobic bioreactor, and a three-phase separator is arranged on the upper part of the anaerobic bioreactor. A sludge circulating pump communicated with the anaerobic bioreactor is arranged outside the anaerobic bioreactor. A microporous exposure device is arranged at the bottom of the membrane box, and an ultrafiltration bundle membrane component is arranged in the membrane box. The adjusting tank is connected with the water distribution pipe of the anaerobic bioreactor through a suction pump. A water outlet pipe of the anaerobic bioreactor is connected with a water inlet pipe on the upper part of the membrane box. A sewage pipe on the lower part of the membrane box is communicated with the water distribution pipe of the anaerobic bioreactor through a circulating pump. According to the bioreactor, sludge loss can be effectively prevented, sludge age can be prolonged, and microorganisms can be easily enriched. The polluted condition of a membrane can be effectively alleviated by nitrogen flushing, the life cycle of the membrane component can be prolonged, the cleaning cost of the membrane component can be saved, and secondary pollution in a cleaning process can be reduced. The bioreactor is simple in structure, easy to operate and applicable to the treatment of high-concentration organic wastewater.

Description

A kind of external placed type anaerobic membrane bioreactor
Technical field
The utility model relates to a kind of external placed type anaerobic membrane bioreactor, is applicable to the processing of high concentrated organic wastewater.
Background technology
Membrane bioreactor (MBR) combines membrane separation technique with biologic treating technique, when effectively removing pollutent, also living weight has been trapped in the reactor drum, has overcome the phenomenon that living weight runs off in the traditional biological treatment technology.Difference according to types of bioreactors; MBR can be divided into aerobic MBR and anaerobism MBR; It is low that wherein aerobic MBR is mainly used in organic loadings such as municipal wastewater; The waste water that biodegradability is higher, and for the higher trade effluent of organic loading, use owing to expending too high being difficult to of cost in its aeration process.By contrast, anaerobism MBR more is applicable to the processing of high concentrated organic wastewater because of the lower advantage of its energy consumption.In general, anaerobism MBR reactor drum is made up of the membrane module of a bio-reactor and an external placed type, because the sludge concentration in the anaerobic biological reactor is higher; Long-time running membrane module surface is prone to the accumulation dirt; Cause the film contamination phenomenon, make the MBR treatment effect descend, meanwhile; In the process of cleaning the film pollution, need often to adopt pharmaceutical chemicals, be easy to cause secondary pollution.
Summary of the invention
It is little that the purpose of the utility model provides a kind of floor space, saves the equipment working cost, but treatment of high concentration organic waste water and can effectively alleviate the external placed type anaerobic membrane bioreactor of film pollution situation.
The external placed type anaerobic membrane bioreactor of the utility model comprises equalizing tank, anaerobic biological reactor and film case, and the bottom of anaerobic biological reactor is provided with water distributor; Triphase separator is equipped with on top, and the top is provided with the air outlet, and there is sludge circulation pump the anaerobic biological reactor outside; The import of this sludge circulation pump all links to each other with anaerobic biological reactor with outlet; Microporous aeration device is arranged at the bottom of film case, and the top is provided with venting port, and ultrafiltration pencil membrane module is equipped with in inside; The top of ultrafiltration pencil membrane module links to each other with second suction pump; Equalizing tank links to each other with the water distributor of anaerobic biological reactor through first suction pump, and the rising pipe of anaerobic biological reactor links to each other with the water inlet pipe of film upper box part, and the waste pipe of film lower box part is communicated with the water distributor of anaerobic biological reactor through recycle pump.
Said ultrafiltration pencil membrane module can adopt bundle formula ultrafiltration hollow-fibre membrane in the utility model, and the film surface-area is 0.07m 2
Triphase separator is housed in the anaerobic biological reactor, can effectively the liquid phase in the anaerobic biological reactor, gas phase and solid phase be separated, reduced the sludge concentration of anaerobic biological reactor water outlet, slowed down the film contamination phenomenon.
The anaerobic biological reactor outside is connected to sludge circulation pump, reaches the well-mixed state of muddy water through the waterpower turbulent flow in the working cycle.
Carrying out along with membrane filtration processes; The organic concentration of waste water rises gradually in the film case; Be the organic concentration of waste water in the controlling diaphragm case; The waste pipe of film lower box part is communicated with the water distributor of anaerobic biological reactor through recycle pump, can makes high-concentration waste water and mud in the film case be back to the anaerobic biological reactor circulating reaction.
Microporous aeration device through film case bottom in the membrane filtration processes continues to feed nitrogen, to wash away the mud that accumulates on the ultrafiltration pencil membrane module, decelerating membrane pollution situation.
The advantage of apparatus of the present invention is:
This reactor drum can effectively prevent sludge loss, improves mud mud age, is easy to the enrichment of mikrobe.Wash away through nitrogen and can effectively alleviate the film pollution situation, improve the life cycle of membrane module, save the secondary pollution that causes in cost and the cleaning process of rinsing membrane module.This reaction unit is simple in structure, and easy handling is applicable to the processing of high concentrated organic wastewater.
Description of drawings
Fig. 1 is the structural representation of external placed type anaerobic membrane biological reaction device.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing and embodiment.
With reference to Fig. 1, the external placed type anaerobic membrane bioreactor of the utility model comprises equalizing tank 1, anaerobic biological reactor 3 and film case 7; The bottom of anaerobic biological reactor is provided with water distributor 4, and triphase separator 5 is equipped with on top, and the top is provided with the air outlet; There is sludge circulation pump 6 the anaerobic biological reactor outside, and the import of this sludge circulation pump 6 all links to each other with anaerobic biological reactor with outlet, and microporous aeration device 8 is arranged at the bottom of film case 7; The top is provided with venting port 11; Ultrafiltration pencil membrane module 9 is equipped with in inside, and the top of ultrafiltration pencil membrane module 9 links to each other with second suction pump 10, and equalizing tank 1 links to each other with the water distributor 4 of anaerobic biological reactor 3 through first suction pump 2; The rising pipe of anaerobic biological reactor 3 links to each other with the water inlet pipe on film case 7 tops, and the waste pipe of film case 7 bottoms is communicated with the water distributor 4 of anaerobic biological reactor through recycle pump 12.
High concentrated organic wastewater in the equalizing tank 1 enters into anaerobic biological reactor 3 through first suction pump 2, and water inlet is upwards flow through Sludge Bed cotton-shaped or that particulate state mud is formed after the water distribution uniformity of water distributor 4.The abundant mixing of waterpower turbulent flow that muddy water produces through sludge circulation pump 6, the hydraulic detention time of whole anaerobic biological reactor is 4 days.The mud mixture that rises is through triphase separator 5; Mud sedimentation under action of gravity; The biogas that produces is discharged the air outlet through anaerobic biological reactor from triphase separator 5 tops; And supernatant gets in the film case 7 through pipeline, after the complete submergence of membrane module 9 quilts, draws water from the membrane module top through second suction pump 10 by the time.Feed nitrogen by film case 7 bottom microporous aeration devices 8 in the pump process, membrane module 9 washed away, through the cross-flow that forms on the film surface with decelerating membrane pollution.Liquid concentrator in the film case and mud get in the anaerobic biological reactor 3 through recycle pump 12 and carry out circulating reaction.The suction pump work period stopped 2 minutes for opening in 8 minutes, and membrane flux remains on 60 KPa at transmembrane pressure during drawing water, and it is 1 h/d that nitrogen feeds frequency, and flow control is at 0.1 m 3/H.In the operational process, water outlet COD clearance is stabilized in more than 85%, in addition; Because membrane module can effectively prevent sludge loss; 7000 mg/L when sludge concentration is by inoculation in the anaerobic biological reactor have brought up to 12000 mg/L, and under the nitrogen souring, the film contamination phenomenon obtains alleviating to a great extent; The water outlet membrane flux still remains on 65% of initial film flux in the long-time running process, is approximately 20 L/m 2.h, improve the life cycle of membrane module effectively, having a good application prospect aspect the high concentrated organic wastewaters such as processing bamboo product waste water, beer waste water.

Claims (2)

1. external placed type anaerobic membrane bioreactor; It is characterized in that comprising equalizing tank (1), anaerobic biological reactor (3) and film case (7), the bottom of anaerobic biological reactor is provided with water distributor (4), and triphase separator (5) is equipped with on top; The top is provided with the air outlet; There is sludge circulation pump (6) the anaerobic biological reactor outside, and the import of this sludge circulation pump (6) all links to each other with anaerobic biological reactor with outlet, and microporous aeration device (8) is arranged at the bottom of film case (7); The top is provided with venting port (11); Ultrafiltration pencil membrane module (9) is equipped with in inside, and the top of ultrafiltration pencil membrane module (9) links to each other with second suction pump (10), and equalizing tank (1) links to each other with the water distributor (4) of anaerobic biological reactor (3) through first suction pump (2); The rising pipe of anaerobic biological reactor (3) links to each other with the water inlet pipe on film case (7) top, and the waste pipe of film case (7) bottom is communicated with the water distributor (4) of anaerobic biological reactor through recycle pump (12).
2. external placed type anaerobic membrane bioreactor according to claim 1 is characterized in that said ultrafiltration pencil membrane module (9) is a bundle formula ultrafiltration hollow-fibre membrane, and the film surface-area is 0.07m 2
CN2012201847401U 2012-04-27 2012-04-27 External anaerobic membrane bioreactor Expired - Fee Related CN202610021U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN2012201847401U CN202610021U (en) 2012-04-27 2012-04-27 External anaerobic membrane bioreactor

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642922A (en) * 2012-04-27 2012-08-22 浙江大学 External anaerobic membrane bioreactor
CN103638819A (en) * 2013-12-19 2014-03-19 北京林业大学 Method for cleaning external tubular membrane for deeply treating waste incineration leachate
CN105948240A (en) * 2016-05-21 2016-09-21 桂林理工大学 Anaerobic membrane bioreactor stable in operation
CN107207289A (en) * 2015-02-09 2017-09-26 住友电气工业株式会社 Water treatment system and method for treating water
CN110054329A (en) * 2019-04-16 2019-07-26 陕西睿兴华环境科技有限公司 A kind of small-sized central treating station or water-injection station produce sewage treatment skid method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642922A (en) * 2012-04-27 2012-08-22 浙江大学 External anaerobic membrane bioreactor
CN103638819A (en) * 2013-12-19 2014-03-19 北京林业大学 Method for cleaning external tubular membrane for deeply treating waste incineration leachate
CN103638819B (en) * 2013-12-19 2015-07-29 北京林业大学 A kind of cleaning method for advanced treating waste incineration leachate type external tubular membrane
CN107207289A (en) * 2015-02-09 2017-09-26 住友电气工业株式会社 Water treatment system and method for treating water
CN107207289B (en) * 2015-02-09 2020-09-01 住友电气工业株式会社 Water treatment system and water treatment method
CN105948240A (en) * 2016-05-21 2016-09-21 桂林理工大学 Anaerobic membrane bioreactor stable in operation
CN105948240B (en) * 2016-05-21 2018-11-06 桂林理工大学 A kind of anaerobic membrane bioreactor of stable operation
CN110054329A (en) * 2019-04-16 2019-07-26 陕西睿兴华环境科技有限公司 A kind of small-sized central treating station or water-injection station produce sewage treatment skid method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121219

Termination date: 20200427

CF01 Termination of patent right due to non-payment of annual fee