JPH06343837A - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JPH06343837A JPH06343837A JP15454493A JP15454493A JPH06343837A JP H06343837 A JPH06343837 A JP H06343837A JP 15454493 A JP15454493 A JP 15454493A JP 15454493 A JP15454493 A JP 15454493A JP H06343837 A JPH06343837 A JP H06343837A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- potting
- fiber membrane
- air
- membrane module
- Prior art date
- 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.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 30
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000004382 potting Methods 0.000 claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000005587 bubbling Effects 0.000 abstract description 9
- 238000005406 washing Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、中空糸膜モジュールに
係り、特に、河川水、湖沼水、し尿、用水及び廃水など
の原水に含まれる懸濁物をろ過するための中空糸膜モジ
ュールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow fiber membrane module, and more particularly to a hollow fiber membrane module for filtering suspensions contained in raw water such as river water, lake water, human waste, water and waste water. .
【0002】[0002]
【従来の技術】中空糸膜を用いる技術において、膜モジ
ュールの洗浄には通常空気によるバブリングが使用され
ている。そして、空気によるバブリングは、従来は膜モ
ジュールの外部より散気するのが一般的であった。外部
からの散気では膜モジュールの表面のみが散気され、一
番膜の閉塞が進む集水部近辺への散気が不十分であっ
た。2. Description of the Related Art In a technique using a hollow fiber membrane, bubbling with air is usually used for cleaning a membrane module. In the conventional bubbling with air, air is generally diffused from the outside of the membrane module. When air was diffused from the outside, only the surface of the membrane module was diffused, and diffused near the water collecting part where the membrane was most clogged was insufficient.
【0003】従来の片端又は両端集水型モジュールにお
いて、バブリングにより濁質の剥離を行う場合、バブリ
ング用の散気管は膜モジュールの下部に設置していた。
下部に集水部がある場合、図3に示すように散気管より
の空気は下部の集水部にあたり、周囲に分散してしまう
ため、集水部近くのバブリングによる洗浄が充分に行え
ない。また、例えば図4に示すように、膜間に散気部を
挿入して設置しても、膜集水部近辺に対する均一なバブ
リングはむずかしい。上記のように、従来の洗浄方法に
おいては、透過流束が一番高く膜の閉塞が進む集水部近
辺でのバブリング洗浄が不充分であった。In the conventional one-end or both-end water collecting type module, when the suspended matter is removed by bubbling, the air diffuser for bubbling is installed in the lower part of the membrane module.
When there is a water collecting section at the lower part, air from the air diffuser hits the lower water collecting section as shown in FIG. 3 and is dispersed to the surroundings, so that cleaning by bubbling near the water collecting section cannot be sufficiently performed. Further, for example, as shown in FIG. 4, even if an air diffuser is inserted and installed between the membranes, uniform bubbling around the membrane water collecting portion is difficult. As described above, in the conventional cleaning method, the bubbling cleaning in the vicinity of the water collecting portion where the permeation flux is highest and the membrane is blocked is insufficient.
【0004】[0004]
【発明が解決しようとする課題】本発明は、上記の従来
技術の問題点を解決し、膜集水部近辺がバブリングによ
り均一かつ充分に洗浄できる構造の中空糸膜モジュール
を提供することを課題とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems of the prior art and to provide a hollow fiber membrane module having a structure in which the vicinity of the membrane collecting portion can be uniformly and sufficiently washed by bubbling. And
【0005】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明では、洗浄用散気部材を近接配備した外圧型
中空糸膜モジュールにおいて、ポッティング部を2段に
設け、該2段に設けたポッティング部の間隙に集水部を
設けると共に、前記2段に設けたポッティング部を貫通
して散気チューブを設置し、該貫通して設置した散気チ
ューブの一端を前記散気部材に開口し、他端を中空糸膜
を張設したポッティング部に開口することとしたもので
ある。In order to solve the above problems, according to the present invention, in an external pressure type hollow fiber membrane module in which cleaning air diffusers are closely arranged, potting portions are provided in two stages and the two stages are provided. A water collecting portion is provided in the gap between the provided potting portions, and an air diffusing tube is installed by penetrating the potting portions provided in the two steps, and one end of the air diffusing tube installed through the penetrating portion is used as the air diffusing member. The opening is made, and the other end is made to open in the potting portion where the hollow fiber membrane is stretched.
【0006】上記中空糸膜モジュールにおいて、ポッテ
ィング部及び集水部の形状は、円形、長方形等のいずれ
の形状でもよく、ポッティング部の材質及び中空糸の材
質とか径もいずれでも使用でき、また、散気チューブの
材質も通常使用できるものがいずれでも使用でき特に制
限はない。In the above hollow fiber membrane module, the potting portion and the water collecting portion may have any shape such as a circular shape or a rectangular shape, and the potting material, the hollow fiber material or the diameter may be used. Any material can be used as the material of the air diffusing tube, and there is no particular limitation.
【0007】[0007]
【作用】本発明によれば、下部集水部の下より直接中空
糸膜に散気できるため、散気した空気が集水部に阻害さ
れることなく、膜間に直接散気した空気が進入し、中空
糸膜の特に集水部近辺を中心に充分に洗浄することがで
きるものである。According to the present invention, since the hollow fiber membrane can be diffused directly from below the lower water collecting portion, the diffused air can be directly diffused between the membranes without being disturbed by the water collecting portion. The hollow fiber membrane that has entered can be sufficiently washed, especially around the water collecting portion.
【0008】[0008]
【実施例】以下、本発明を実施例により図面を用いて具
体的に説明するが、本発明はこれに限定されない。 実施例1 図1に本発明の中空糸膜の概略断面図を示し、図2に図
1のポッティング部の部分拡大図を示す。図1及び図2
において、中空糸1は下部ポッティング部A2と上部ポ
ッティング部4で支持されており、下部ポッティング部
A2とその下の散気チューブを支持するポッティング部
B3との間には密閉された集水部5が設けられ、散気チ
ューブ9が貫通している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings, but the present invention is not limited thereto. Example 1 FIG. 1 shows a schematic sectional view of the hollow fiber membrane of the present invention, and FIG. 2 shows a partially enlarged view of the potting portion of FIG. 1 and 2
In the above, the hollow fiber 1 is supported by the lower potting portion A2 and the upper potting portion 4, and the water collecting portion 5 which is sealed between the lower potting portion A2 and the potting portion B3 which supports the air diffusing tube therebelow. Is provided and the air diffuser tube 9 penetrates through.
【0009】そして、中空部で処理された水は下部集水
部5に集水され、集水部連絡管7を通り上部集水管6に
流入して外部に排出される。処理水の排出は下部の集水
部5から直接排出してもよい。ポッティング部3の下部
には散気された空気を一旦受ける、空気受け部10が設
置されている。空気受け部10は下部が開放されていれ
ば、口径がポッティング部と同じでも広がっていても良
い。散気チューブ9は2〜5mm程度のチューブでポッ
ティングA2とB3を貫通し、空気受け部10とポッテ
ィング部2上面を連絡している。散気チューブ9はポッ
ティング部2に対し、均一に配置されることが望まし
い。散気管11より排出された空気は一旦空気受け部1
0に流入し、更に、散気チューブ9を通り、ポッティン
グ部2上面より散気される。The water treated in the hollow portion is collected in the lower water collecting portion 5, passes through the water collecting portion connecting pipe 7, flows into the upper water collecting pipe 6, and is discharged to the outside. The treated water may be discharged directly from the lower water collecting section 5. An air receiver 10 is provided below the potting unit 3 to temporarily receive diffused air. As long as the lower portion of the air receiving portion 10 is open, the diameter may be the same as or wider than that of the potting portion. The air diffuser tube 9 is a tube of about 2 to 5 mm, which penetrates the pottings A2 and B3 to connect the air receiving portion 10 and the upper surface of the potting portion 2 to each other. It is desirable that the air diffuser tube 9 is uniformly arranged with respect to the potting portion 2. The air discharged from the air diffuser 11 once receives the air receiving portion 1
0, further passes through the diffuser tube 9 and is diffused from the upper surface of the potting portion 2.
【0010】散気は中空糸膜間でかつポッティング部2
より行なわれるため、ポッティング部及びその近辺に対
する洗浄効果が著しく高くなる。また散気された空気は
膜間を通って上昇するため、効率よく洗浄に使用され、
両端集水で上部にポッティング部のある場合もポッティ
ング部に直接上昇した空気があたるため、洗浄効果が高
くなる。この実施例では、両端集水型の例を示したが、
片端集水で集水部が散気管上部にある場合も同様に実施
できる。Aeration is between the hollow fiber membranes and the potting portion 2
Therefore, the cleaning effect on the potting portion and its vicinity is significantly enhanced. In addition, the air that has diffused rises between the membranes, so it is used efficiently for cleaning.
Even if there is a potting part on the upper part of the water collected at both ends, the rising air directly hits the potting part, so that the cleaning effect is enhanced. In this embodiment, an example of the water collecting type on both ends is shown.
The same operation can be performed when collecting water at one end and the water collecting portion is located above the air diffuser.
【0011】[0011]
【発明の効果】本発明により、集水部近辺での濁質の閉
塞がなくなり、閉塞による駆動圧力の上昇が最小限にな
る。EFFECTS OF THE INVENTION According to the present invention, the clogging of suspended matter in the vicinity of the water collecting portion is eliminated, and the increase in driving pressure due to the clogging is minimized.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の中空糸膜モジュールの一例を示す概略
断面図。FIG. 1 is a schematic sectional view showing an example of a hollow fiber membrane module of the present invention.
【図2】図1の下部ポッティング部の部分拡大図。FIG. 2 is a partially enlarged view of a lower potting portion of FIG.
【図3】従来の散気による洗浄の説明図。FIG. 3 is an explanatory view of conventional cleaning by diffused air.
【図4】従来の散気による洗浄の説明図。FIG. 4 is an explanatory view of conventional cleaning by diffused air.
【符号の説明】 1:中空糸、2:下部ポッティング部A、3:下部ポッ
ティング部B、4:上部ポッティング部、5:集水部、
6:上部集水部、7:集水部連絡管、8:散気部、9:
散気チューブ、10:空気受部、11:散気管、12:
処理水[Explanation of symbols] 1: hollow fiber, 2: lower potting portion A, 3: lower potting portion B, 4: upper potting portion, 5: water collecting portion,
6: Upper water collecting part, 7: Water collecting part connecting pipe, 8: Air diffuser, 9:
Air diffuser tube, 10: Air receiver, 11: Air diffuser, 12:
Treated water
Claims (1)
空糸膜モジュールにおいて、ポッティング部を2段に設
け、該2段に設けたポッティング部の間隙に集水部を設
けると共に、前記2段に設けたポッティング部を貫通し
て散気チューブを設置し、該貫通して設置した散気チュ
ーブの一端を前記散気部材に開口し、他端を中空糸膜を
張設したポッティング部に開口したことを特徴とする中
空糸膜モジュール。1. In an external pressure type hollow fiber membrane module in which a cleaning air diffuser is closely arranged, potting parts are provided in two stages, and a water collecting part is provided in a gap between the potting parts provided in the two stages, and the above-mentioned 2 An air diffusing tube is installed by penetrating the potting section provided in the step, one end of the air diffusing tube installed through the opening is opened to the air diffusing member, and the other end is a potting section in which a hollow fiber membrane is stretched. A hollow fiber membrane module characterized by being opened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15454493A JPH06343837A (en) | 1993-06-02 | 1993-06-02 | Hollow fiber membrane module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15454493A JPH06343837A (en) | 1993-06-02 | 1993-06-02 | Hollow fiber membrane module |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06343837A true JPH06343837A (en) | 1994-12-20 |
Family
ID=15586580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15454493A Pending JPH06343837A (en) | 1993-06-02 | 1993-06-02 | Hollow fiber membrane module |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06343837A (en) |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990045939A (en) * | 1999-02-24 | 1999-06-25 | 장문석 | Improved hollow fiber membrane module and method of treating waste water using same |
EP0952885A4 (en) * | 1996-12-20 | 2001-04-04 | Usf Filtration & Separations | Scouring method |
JP2002525197A (en) * | 1998-09-25 | 2002-08-13 | ユー・エス・フィルター・ウェイストウォーター・グループ・インコーポレイテッド | Cleaning device and cleaning method for filtration membrane module |
JP2003053157A (en) * | 2001-08-09 | 2003-02-25 | Asahi Kasei Corp | External pressure type hollow fiber membrane module |
US6620319B2 (en) | 1995-08-11 | 2003-09-16 | Zenon Enviromental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
EP1115474A4 (en) * | 1998-09-25 | 2005-03-30 | Us Filter Wastewater Group Inc | Apparatus and method for cleaning membrane filtration modules |
WO2006004309A1 (en) * | 2004-04-07 | 2006-01-12 | Kolon Industries, Inc | Submerged hollow fiber membrane module |
US7022231B2 (en) | 1995-08-11 | 2006-04-04 | Zenon Environmental Inc. | Apparatus incorporating potted hollow fiber membranes |
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US7160463B2 (en) | 2002-06-18 | 2007-01-09 | U.S. Filter Wastewater Group, Inc. | Methods of minimizing the effect of integrity loss in hollow fibre membrane modules |
US7198721B2 (en) | 1998-10-09 | 2007-04-03 | Zenon Technology Partnership | Cyclic aeration system for submerged membrane modules |
WO2007080910A1 (en) * | 2006-01-12 | 2007-07-19 | Kureha Corporation | Hollow-fiber module and process for producing the same |
US7361274B2 (en) | 2002-08-21 | 2008-04-22 | Siemens Water Technologies Corp. | Aeration method |
WO2011065418A1 (en) * | 2009-11-26 | 2011-06-03 | 株式会社神鋼環境ソリューション | Hollow-fiber membrane module, water treatment device, membrane separation method, and water treatment method |
JP2011110498A (en) * | 2009-11-26 | 2011-06-09 | Kobelco Eco-Solutions Co Ltd | Hollow fiber membrane module and water treatment method |
JP2011110499A (en) * | 2009-11-26 | 2011-06-09 | Kobelco Eco-Solutions Co Ltd | Hollow fiber membrane module and water treatment method |
JP2011110496A (en) * | 2009-11-26 | 2011-06-09 | Kobelco Eco-Solutions Co Ltd | Hollow fiber membrane module, membrane separation method, and water treatment apparatus |
USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
US8257590B2 (en) * | 2007-05-22 | 2012-09-04 | Asahi Kasei Chemicals Corporation | Hollow fiber membrane module, process for manufacturing the same, hollow fiber membrane module assembly and method of purifying suspended water with use thereof |
WO2013023896A1 (en) * | 2011-08-18 | 2013-02-21 | Mann+Hummel Gmbh | Filtration module comprising hollow fibre membranes and method for operating a filtration module for fluids |
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-
1993
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US6682652B2 (en) | 1995-08-11 | 2004-01-27 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes |
US6964741B2 (en) | 1995-08-11 | 2005-11-15 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes |
EP1213048B2 (en) † | 1995-08-11 | 2015-11-11 | Zenon Technology Partnership | Method of potting fiber membranes |
US8852438B2 (en) | 1995-08-11 | 2014-10-07 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
US8075776B2 (en) * | 1995-08-11 | 2011-12-13 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
US6620319B2 (en) | 1995-08-11 | 2003-09-16 | Zenon Enviromental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
US7615157B2 (en) | 1995-08-11 | 2009-11-10 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
US7063788B2 (en) * | 1995-08-11 | 2006-06-20 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
US7022231B2 (en) | 1995-08-11 | 2006-04-04 | Zenon Environmental Inc. | Apparatus incorporating potted hollow fiber membranes |
USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
US6555005B1 (en) | 1996-12-20 | 2003-04-29 | Usf Filtration & Separations Group Inc. | Scouring method |
EP1736234A3 (en) * | 1996-12-20 | 2007-06-13 | Siemens Water Technologies Corp. | Method for scouring fouled membranes |
EP0952885A4 (en) * | 1996-12-20 | 2001-04-04 | Usf Filtration & Separations | Scouring method |
JP2006272336A (en) * | 1996-12-20 | 2006-10-12 | Us Filter Wastewater Group Inc | Scouring method |
KR100832673B1 (en) * | 1998-09-25 | 2008-05-27 | 유.에스. 필터 웨이스트워터 그룹, 인크. | Filtration system, membrane module and method for cleaning the module |
KR100704328B1 (en) * | 1998-09-25 | 2007-04-09 | 유.에스. 필터 웨이스트워터 그룹, 인크. | Membrane module, method for cleaning the module, membrane bioreactor and method for operating the bioreactor |
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JP2002525197A (en) * | 1998-09-25 | 2002-08-13 | ユー・エス・フィルター・ウェイストウォーター・グループ・インコーポレイテッド | Cleaning device and cleaning method for filtration membrane module |
US7625491B2 (en) | 1998-10-09 | 2009-12-01 | Zenon Technology Partnership | Cyclic aeration system for submerged membrane modules |
US7198721B2 (en) | 1998-10-09 | 2007-04-03 | Zenon Technology Partnership | Cyclic aeration system for submerged membrane modules |
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