CN100384520C - Bioreactor of dynamic membrane of 3D filter cloth - Google Patents

Bioreactor of dynamic membrane of 3D filter cloth Download PDF

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Publication number
CN100384520C
CN100384520C CNB2006100687692A CN200610068769A CN100384520C CN 100384520 C CN100384520 C CN 100384520C CN B2006100687692 A CNB2006100687692 A CN B2006100687692A CN 200610068769 A CN200610068769 A CN 200610068769A CN 100384520 C CN100384520 C CN 100384520C
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CN
China
Prior art keywords
membrane
filter cloth
outlet pipe
bioreactor
hull
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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
CNB2006100687692A
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Chinese (zh)
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CN1915857A (en
Inventor
张建
邱宪锋
张成禄
高宝玉
滕少香
聂玮
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Shandong University
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Shandong University
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Publication date
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Priority to CNB2006100687692A priority Critical patent/CN100384520C/en
Publication of CN1915857A publication Critical patent/CN1915857A/en
Application granted granted Critical
Publication of CN100384520C publication Critical patent/CN100384520C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

This invention provides a three-dimensional dynamic membrane bioreactor, which comprises hull, membrane modulus, water outlet pipe, aeration pipe and back-washing aeration pipe. The bottom of the hull is sealed, while the top is open. The inner of the hull is divided by a diagram into two parts, with a water inlet mouth set on the top of the left part. The membrane modulus is set on the right of the diagram in the hull, below which is the water outlet pipe. The back-washing aeration pipe is connected with the water outlet pipe. The aeration pipe is set on the left of the diagram in the hull. The membrane modulus is produced by covering a frame with three-dimensional filter cloth, and a cutting mouth is set horizontally on the filtration face of the membrane modulus. This invention can effectively reduce membrane blockage and pollution, prolong reactor back-washing period and membrane substrate service life, and improve reactor operation stability.

Description

Bioreactor of dynamic membrane of 3 D filter cloth
Technical field
The present invention relates to bioreactor of dynamic membrane, belong to field of membrane bioreactor technology.
Background technology
Mostly the membrane module of the bioreactor of dynamic membrane of using is to adopt the nonwoven parcel to form at present, the less mud of particle diameter is easy to be deposited on the inner self-filtering that takes place of base material in filter process, the mud that particle diameter is bigger is trapped within substrate surface, form filter cake, because sludge concentration is higher in the bioreactor of dynamic membrane, the film stopping state frequently takes place.The internal layer filtration can reduce the service life of film base material significantly.
Summary of the invention
At the deficiency of above-mentioned existing bioreactor of dynamic membrane, the invention provides a kind of bioreactor of dynamic membrane of 3 D filter cloth that is difficult for causing film obstruction, film base material long service life.
Bioreactor of dynamic membrane of 3 D filter cloth of the present invention adopts following technical solution:
Bioreactor of dynamic membrane of 3 D filter cloth comprises housing, membrane module, outlet pipe, aeration tube and backwash aeration tube; The sealing of housing lower end, upper end open; Housing is interior to be left and right sides two parts by barrier partitions, and the top of left part is provided with water inlet; Membrane module is arranged on the right side of housing Internal baffle, and its lower end is provided with outlet pipe, is connected with the backwash aeration tube on outlet pipe; Aeration tube is arranged on the left side of housing Internal baffle, and membrane module is wrapped on the framework by 3 D filter cloth and makes, and the filtering surface along continuous straight runs of membrane module is provided with scarfing.
3 D filter cloth is that filter material surface is smooth through the non-woven filter cloth of surface dressing and calendering processing, and surface fiber local bonding, surface mutually are half membrane structure.3 D filter cloth can effectively slow down film and stop up, and reduces the energy consumption of backwash, and the service life of 3 D filter cloth and filter efficiency are all higher.
In above-mentioned internal circulation dynamic membrane bioreactor running, aeration tube plays the effect to the mixed liquor oxygen supply, and the mixed liquor of baffle plate left bottom upwards flows under the effect of aeration simultaneously, both flows downward from the baffle plate right side after the top.Mixing sludge between liquid level and the delivery port under the effect of pressure reduction, filters water outlet through membrane module in housing.When the needs backwash, close delivery port, open the backwash aeration tube, the gas that backwash provides enters membrane module by outlet pipe, sees through 3 D filter cloth then and enters reactor.Be ground into small bubble when gas process film base material, Dynamic Membrane is destroyed by micro-bubble, pollutes thereby reduce film, can recover membrane flux.And the scarfing of the filtering surface along continuous straight runs of membrane module can reduce membrane resistance, delay the film pollution.
The present invention can effectively reduce film and stop up, and delays film and pollutes, and the backwashing period of extension reactor and the service life of film base material, increases the stability that reactor moves.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of membrane module among the present invention.
Among the figure: 1, housing, 2, aeration tube, 3, water inlet, 4, baffle plate, 5, membrane module, 6, valve, 7, outlet pipe, 8, the backwash aeration tube, 9, valve, 10,3 D filter cloth, 11, the PVC framework.
The specific embodiment
Embodiment 1
As shown in drawings, bioreactor of dynamic membrane of 3 D filter cloth of the present invention comprises housing 1, baffle plate 4, membrane module 5, aeration tube 2 and backwash aeration tube 8.The lower end sealing of housing 1, upper end open.Baffle plate 4 is arranged on the middle part of housing 1, and housing 1 is divided into left and right sides two parts, and the top of left part is provided with water inlet 3.The upper end of baffle plate 4 is 15cm apart from case top, and the lower end of baffle plate is 5cm apart from the housing inner bottom part.Membrane module 5 is arranged on the right side of baffle plate 4, and membrane module 5 lower ends are provided with the outlet pipe 7 that stretches out housing 1, and outlet pipe 7 is provided with valve 6.Also be connected with backwash aeration tube 8 on outlet pipe 7, backwash aeration tube 8 is provided with valve 9.Aeration tube 2 is arranged on the left side of baffle plate 4, plays the effect to mixed liquor oxygen supply and promotion mixed liquor circulation.The structure of membrane module 5 is wrapped on the PVC framework 11 by 3 D filter cloth 10 and makes as shown in Figure 2, and along continuous straight runs severs the filtering surface many places, and the spacing of every scarfing is 6cm.Delay the film pollution to reduce membrane resistance.After filter cloth is severed, do not carry out any processing; 3 D filter cloth is half membrane structure, with common filtering material comparatively speaking, this filter material surface is smooth, closely knit.
In running, mixing sludge filters water outlets through dynamic film component 5 under the effect of pressure reduction between the liquid level of housing 1 and outlet pipe 7 delivery ports.When the needs backwash, valve-off 6 is opened valve 9, and the gas that is provided by backwash aeration tube 8 enters membrane module 5 by outlet pipe 7, sees through film base material then and enters reactor.Be ground into small bubble when gas process film base material, Dynamic Membrane is destroyed by micro-bubble, pollutes thereby reduce film, can recover membrane flux.
Above-mentioned bioreactor of dynamic membrane of 3 D filter cloth adopts permanent flux to filter, and the MLSS of reactor is that 8000mg/L, DO are that 2.0~4.0mg/L, water inlet are sanitary sewage, and its COD is 300mg/L.Hydraulic detention time is 6h, and bioreactor of dynamic membrane of 3 D filter cloth water outlet COD is that 25mg/L, turbidity are 4NTU, and the backwashing period of reactor can be stabilized in 9d.
Embodiment 2
The structure of bioreactor of dynamic membrane of 3 D filter cloth is identical with embodiment 1, and the MLSS of reactor is that 10000mg/L, DO are that 2.0~4.0mg/L, water inlet are the papermaking straw pulp middle-stage wastewater, and its COD is 1300mg/L.When hydraulic detention time was 24h, bioreactor of dynamic membrane of 3 D filter cloth water outlet COD was that 290mg/L, turbidity are 6NTU, and the backwashing period of reactor can be stabilized in 7d.
Embodiment 3:
The structure of bioreactor of dynamic membrane of 3 D filter cloth is identical with embodiment 1, and the MLSS of reactor is that 6000mg/L, DO are that 2.0~4.0mg/L, water inlet are the simulation dyeing waste water, and water inlet COD is that 600mg/L, colourity are 750 times.When hydraulic detention time was 12h, water outlet COD was that 95mg/L, delivery turbidity are 5NTU, and the backwashing period of reactor can be stabilized in 8d.

Claims (1)

1. a bioreactor of dynamic membrane of 3 D filter cloth comprises housing, membrane module, outlet pipe, aeration tube and backwash aeration tube; The sealing of housing lower end, upper end open; Housing is interior to be left and right sides two parts by barrier partitions, and the top of left part is provided with water inlet; It is characterized in that: membrane module is arranged on the right side of housing Internal baffle, and its lower end is provided with outlet pipe, is connected with the backwash aeration tube on outlet pipe; Aeration tube is arranged on the left side of housing Internal baffle, and membrane module is wrapped on the framework by 3 D filter cloth and makes, and the filtering surface along continuous straight runs of membrane module is provided with scarfing.
CNB2006100687692A 2006-09-06 2006-09-06 Bioreactor of dynamic membrane of 3D filter cloth Expired - Fee Related CN100384520C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100687692A CN100384520C (en) 2006-09-06 2006-09-06 Bioreactor of dynamic membrane of 3D filter cloth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100687692A CN100384520C (en) 2006-09-06 2006-09-06 Bioreactor of dynamic membrane of 3D filter cloth

Publications (2)

Publication Number Publication Date
CN1915857A CN1915857A (en) 2007-02-21
CN100384520C true CN100384520C (en) 2008-04-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857304A (en) * 2010-07-06 2010-10-13 深圳清华大学研究院 Dynamic filtering-membrane bioreactor for sewage treatment and filtering method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555047B (en) * 2008-04-08 2011-04-20 曹达文 Dynamic membrane support body and component for realizing water supply/sewage water treatment
CN102381754A (en) * 2011-09-29 2012-03-21 同济大学 Micro-net separating biological membrane process reinforced activated sludge method for removing ammonia nitrogen
CN103623710B (en) * 2012-08-20 2016-08-17 贺大立 Support frame net and dynamic particle membrane module for dynamic particle film

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Publication number Priority date Publication date Assignee Title
JPH09131593A (en) * 1995-11-09 1997-05-20 B Bai B:Kk Contact material for biological membrane vessel
JPH1028989A (en) * 1996-07-12 1998-02-03 B Bai B:Kk Biological membrane tank and production of contact material for biological membrane
CN2533122Y (en) * 2002-02-28 2003-01-29 李力 Membrane bioreaction device
CN1426973A (en) * 2001-12-17 2003-07-02 财团法人工业技术研究院 Membrane bioreactor using non fabric filtration
US20050176330A1 (en) * 1999-09-20 2005-08-11 Yoshitsugu Hama Laminated material of segregating membrane and segregating membrane supporting material, and its method of manufacture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09131593A (en) * 1995-11-09 1997-05-20 B Bai B:Kk Contact material for biological membrane vessel
JPH1028989A (en) * 1996-07-12 1998-02-03 B Bai B:Kk Biological membrane tank and production of contact material for biological membrane
US20050176330A1 (en) * 1999-09-20 2005-08-11 Yoshitsugu Hama Laminated material of segregating membrane and segregating membrane supporting material, and its method of manufacture
CN1426973A (en) * 2001-12-17 2003-07-02 财团法人工业技术研究院 Membrane bioreactor using non fabric filtration
CN2533122Y (en) * 2002-02-28 2003-01-29 李力 Membrane bioreaction device

Non-Patent Citations (2)

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非织造三维结构过滤材料加工工艺研究. 郭秉臣等.产业用纺织品,第16卷第9期. 1998
非织造三维结构过滤材料加工工艺研究. 郭秉臣等.产业用纺织品,第16卷第9期. 1998 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857304A (en) * 2010-07-06 2010-10-13 深圳清华大学研究院 Dynamic filtering-membrane bioreactor for sewage treatment and filtering method thereof

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