JPH05154356A - Membrane filter module - Google Patents
Membrane filter moduleInfo
- Publication number
- JPH05154356A JPH05154356A JP32592691A JP32592691A JPH05154356A JP H05154356 A JPH05154356 A JP H05154356A JP 32592691 A JP32592691 A JP 32592691A JP 32592691 A JP32592691 A JP 32592691A JP H05154356 A JPH05154356 A JP H05154356A
- Authority
- JP
- Japan
- Prior art keywords
- holding member
- chamber
- pressure chamber
- supply pipe
- cylindrical case
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、中空糸の束により原液
からそれに含まれている詰まりとなるゲル状物質や固形
物等を除去する膜濾過モジュールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane filtration module for removing a gelled substance, solid matter or the like contained in a stock solution from a stock solution by a bundle of hollow fibers.
【０００２】[0002]
【従来の技術】近年において、原液を透過膜，例えば限
外濾過膜や精密濾過膜によって処理する場合、特に原液
中に固形物や詰まりとなる物質等が含まれている場合に
は、モジュール当たりの膜面積が多くとれる外圧式の中
空糸膜が使用されるようになってきている。2. Description of the Related Art In recent years, when a stock solution is treated with a permeable membrane, for example, an ultrafiltration membrane or a microfiltration membrane, especially when the stock solution contains a solid substance or a substance to be clogged, External pressure type hollow fiber membranes, which have a large membrane area, have been used.
【０００３】このような中空糸を使用した膜濾過装置を
示すものとしては、例えば実開平１−１３２２０２号公
報に開示されるようなものが知られている。図１４はこ
の種の膜濾過装置の一例を示す。As a membrane filtration device using such a hollow fiber, for example, one disclosed in Japanese Utility Model Publication No. 1-132202 is known. FIG. 14 shows an example of this type of membrane filtration device.
【０００４】図において、符号１０１は筒状ケースを示
し、筒状ケース１０１内に中空糸１０２の束１０３が収
容されている。中空糸１０２の一端１０２Ａは閉塞され
ている。In the figure, reference numeral 101 indicates a tubular case, and a bundle 103 of hollow fibers 102 is housed in the tubular case 101. One end 102A of the hollow fiber 102 is closed.
【０００５】筒状ケース１０１内端部に、糸保持部材１
０４が設けられ、糸保持部材１０４に中空糸１０２の束
１０３の他端１０３Ｂが固定して支持されている。糸保
持部材１０４により、筒状ケース１０１内は、上流側の
加圧室１０５と、中空糸１０２の他端１０２Ｂが開口す
る下流側の透過室１０６とに仕切られている。At the inner end of the cylindrical case 101, the thread holding member 1
04 is provided, and the other end 103B of the bundle 103 of the hollow fibers 102 is fixedly supported by the yarn holding member 104. The inside of the tubular case 101 is partitioned by the thread holding member 104 into a pressure chamber 105 on the upstream side and a permeation chamber 106 on the downstream side where the other end 102B of the hollow fiber 102 is opened.
【０００６】加圧室１０５の側壁面１０５Ａに原液入口
１０７が形成され、加圧室１０５の端壁面１０５Ｂに濃
縮液出口１０８が形成されている。また、透過室１０６
には透過液出口１０９が形成されている。A stock solution inlet 107 is formed on the side wall surface 105A of the pressurizing chamber 105, and a concentrated solution outlet 108 is formed on the end wall surface 105B of the pressurizing chamber 105. In addition, the transmission chamber
A permeated liquid outlet 109 is formed in this.
【０００７】しかして、原液入口１０７から原液が筒状
ケース１０１内に供給され、中空糸１０２を通過して濾
過され、透過液が透過室１０６内に導かれ、透過液出口
１０９から排出される。Then, the stock solution is supplied from the stock solution inlet 107 into the cylindrical case 101, filtered through the hollow fiber 102, the permeate is guided into the permeate chamber 106, and is discharged from the permeate exit 109. ..
【０００８】一方、加圧室１０５で透過されなかった原
液は、濃縮され、濃縮液出口１０８から導出される。On the other hand, the undiluted solution that has not permeated through the pressurizing chamber 105 is concentrated and discharged from the concentrated solution outlet 108.
【０００９】[0009]
【発明が解決しようとする課題】しかし、従来の膜濾過
モジュールにあっては、特に、原液中に高分子量物質が
多量に含まれる場合には、中空糸１０２の膜面に原液中
の粒子やゲル成分がゲル層となって付着し、原液の透過
流速が低下したり、膜モジュールの圧力損失が増大した
りして、原液の透過処理効率の悪化を招き、中空糸１０
２の交換頻度が高く、ランニングコストが増大すること
になる。However, in the conventional membrane filtration module, especially when a large amount of a high molecular weight substance is contained in the undiluted solution, particles in the undiluted solution or the particles in the undiluted solution are formed on the membrane surface of the hollow fiber 102. The gel component adheres to form a gel layer, the permeation flow rate of the stock solution decreases, and the pressure loss of the membrane module increases, leading to deterioration of the permeation treatment efficiency of the stock solution, and the hollow fiber 10
The replacement frequency of 2 is high and the running cost is increased.
【００１０】かかる不具合をを防止するため、中空糸１
０２の膜面と原液の間に濃度分極が起きないようにする
方法（即ち、中空糸１０２の膜面に付着したゲル層等を
除去する方法）として以下の洗浄方法がある。 （１）原液の循環流速を上げ、膜面流速を速くする。 （２）原液入口１０７から、空気，窒素等の気体を吹き
込み、気液混層流とし、膜表面部分を攪拌する。 （３）気体や気液を中空糸１０２の内部から逆に外側
（加圧室１０５内）に吹き出して洗浄する。 （４）循環ラインを原液から薬液に置き換えて、化学的
に除去する。 （５）中空糸１０２の束を筒状ケースから取り外して物
理的或いは化学的に除去する。In order to prevent such a problem, the hollow fiber 1
As a method of preventing concentration polarization between the membrane surface of No. 02 and the stock solution (that is, a method of removing the gel layer or the like adhering to the membrane surface of the hollow fiber 102), there is the following washing method. (1) The circulation flow velocity of the stock solution is increased to increase the membrane surface flow velocity. (2) A gas such as air or nitrogen is blown from the stock solution inlet 107 to form a gas-liquid mixed layer flow, and the film surface portion is stirred. (3) Cleaning is performed by blowing gas or gas / liquid from the inside of the hollow fiber 102 to the outside (inside the pressurizing chamber 105). (4) Chemical solution is removed by replacing the circulation line with the stock solution. (5) The bundle of hollow fibers 102 is removed from the cylindrical case and physically or chemically removed.
【００１１】ところが、依然として、中空糸１０２の膜
面にゲル状物質が付着し、中空糸１０２の束の内部領域
にゲル状物質が成長し、最悪の場合には中空糸１０２の
束が全体的に１本の棒状体になってしまう場合もある。However, the gel-like substance still adheres to the membrane surface of the hollow fibers 102, and the gel-like substance grows in the inner region of the bundle of hollow fibers 102. In the worst case, the bundle of hollow fibers 102 is entirely In some cases, it becomes a single rod-shaped body.
【００１２】本発明は、上述の問題点を解決するために
なされたもので、その目的は、中空糸膜の膜面にゲル状
物質が付着することを防止することができる膜濾過モジ
ュールを提供することである。The present invention has been made to solve the above problems, and an object thereof is to provide a membrane filtration module capable of preventing the gel-like substance from adhering to the membrane surface of a hollow fiber membrane. It is to be.
【００１３】[0013]
【課題を解決するための手段】請求項１記載の発明は、
壁面に原液入口，濃縮液出口及び透過液出口を有する筒
状ケースと、一端を閉塞した中空糸の束と、中空糸の他
端側を支持する糸保持部材とを備え、糸保持部材によ
り、筒状ケース内を、原液入口及び濃縮液出口を有する
加圧室と、透過液出口を有する透過室とに区画する膜濾
過モジュールにおいて、気体または気液を筒状ケースの
加圧室内に吹き出す洗浄用供給管を該加圧室内に配設し
たことを特徴とする。The invention according to claim 1 is
A cylindrical case having a raw liquid inlet, a concentrated liquid outlet, and a permeated liquid outlet on the wall surface, a bundle of hollow fibers closed at one end, and a yarn holding member supporting the other end side of the hollow fibers are provided. In a membrane filtration module that divides the inside of a cylindrical case into a pressure chamber having a raw liquid inlet and a concentrated liquid outlet and a permeation chamber having a permeate outlet, cleaning by blowing gas or gas-liquid into the pressure chamber of the cylindrical case. The supply pipe is disposed in the pressurizing chamber.
【００１４】請求項２記載の発明は、壁面に原液入口，
濃縮液出口及び透過液出口を有する筒状ケースと、一端
を閉塞した中空糸の束と、中空糸の一端側を支持する第
１糸保持部材と、中空糸の他端側を支持する第２糸保持
部材とを備え、第１糸保持部材及び第２糸保持部材によ
り、筒状ケース内を、第１糸保持部材と第２糸保持部材
の間に位置し濃縮液出口を有する加圧室と、加圧室内と
連通した状態で第１糸保持部材を介して加圧室と仕切ら
れ原液入口を有する原液供給室と、第２糸保持部材を介
して加圧室と仕切られ透過液出口を有する透過室とに区
画し、気体または気液を筒状ケースの加圧室内に吹き出
す洗浄用供給管を該加圧室内に配設したことを特徴とす
る。According to a second aspect of the invention, the stock solution inlet is provided on the wall surface,
A cylindrical case having a concentrate outlet and a permeate outlet, a bundle of hollow fibers closed at one end, a first yarn holding member for supporting one end of the hollow fibers, and a second for supporting the other end of the hollow fibers. A pressurizing chamber that includes a yarn holding member, and is located between the first yarn holding member and the second yarn holding member in the tubular case by the first yarn holding member and the second yarn holding member and has a concentrated liquid outlet. A stock solution supply chamber that is partitioned from the pressurization chamber through a first thread holding member and has a stock solution inlet in a state of communicating with the pressurization chamber; and a permeate outlet that is partitioned from the pressurization chamber through a second thread holding member. And a cleaning supply pipe for blowing gas or gas-liquid into the pressurizing chamber of the cylindrical case is disposed in the pressurizing chamber.
【００１５】[0015]
【作用】請求項１記載の発明においては、中空糸の膜面
にゲル状物質が付着した場合には、洗浄用供給管から、
気体または気液が吹き出され、その気泡で中空糸の膜面
に付着したゲル状物質を膜面から引きちぎり、膜面から
ゲル状物質が除去される。In the invention described in claim 1, when the gel-like substance adheres to the membrane surface of the hollow fiber,
A gas or gas-liquid is blown out, and the air bubbles blow off the gel-like substance adhering to the membrane surface of the hollow fiber from the membrane surface, and the gel-like substance is removed from the membrane surface.
【００１６】また、常時、洗浄用供給管から、気体また
は気液が吹き出されると、中空糸の膜面へのゲル状物質
の付着が予め防止される。請求項２記載の発明において
は、請求項２記載の発明と同様の作用が生じる。Further, when gas or gas liquid is constantly blown out from the cleaning supply pipe, the gel substance is prevented from adhering to the membrane surface of the hollow fiber in advance. In the invention described in claim 2, the same operation as the invention described in claim 2 occurs.
【００１７】[0017]
【実施例】以下、図面により本発明の実施例について説
明する。図１ないし図７は本発明の第１実施例に係わる
膜濾過モジュールを示す。Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show a membrane filtration module according to a first embodiment of the present invention.
【００１８】図１，図３，図４は膜濾過モジュールＭの
構造を示す。図において、符号１は筒状ケースで、この
筒状ケース１は、一端を開口した筒状ケース本体１Ａ
と、筒状ケース本体１Ａの他端を閉塞する蓋部材１Ｂと
から構成されている。筒状ケース１として、例えば、円
筒形や断面多角形の中空筒形がある。筒状ケース１内端
部にコップ状の糸保持部材２が第１環状シール部材３を
介して設けられ、糸保持部材２と蓋部材１Ｂの間に第２
環状シール部材４が装着されている。そして、糸保持部
材２により、筒状ケース１は、上流側の加圧室５と、下
流側の透過室６とに区画されている。1, FIG. 3 and FIG. 4 show the structure of the membrane filtration module M. In the drawings, reference numeral 1 is a cylindrical case, and this cylindrical case 1 has a cylindrical case body 1A with one end opened.
And a lid member 1B that closes the other end of the cylindrical case body 1A. As the tubular case 1, for example, there is a hollow tubular shape having a cylindrical shape or a polygonal cross section. A cup-shaped thread holding member 2 is provided at an inner end portion of the tubular case 1 via a first annular seal member 3, and a second thread holding member 2 is provided between the thread holding member 2 and the lid member 1B.
An annular seal member 4 is attached. Then, the thread holding member 2 divides the tubular case 1 into a pressure chamber 5 on the upstream side and a permeation chamber 6 on the downstream side.
【００１９】加圧室５の側壁面５Ａに原液入口８が形成
され、加圧室５の端壁面５Ｂに濃縮液出口９が形成され
ている。また、透過室６には透過液出口７が形成されて
いる。A stock solution inlet 8 is formed on the side wall surface 5A of the pressurizing chamber 5, and a concentrated solution outlet 9 is formed on the end wall surface 5B of the pressurizing chamber 5. A permeate outlet 7 is formed in the permeate chamber 6.
【００２０】１０は気液（または空気）を筒状ケース１
の加圧室５内に吹き出す洗浄用供給管で、中空柱体に構
成され、筒状ケース１の軸方向に沿って先端を筒状ケー
ス１内に位置するように蓋部材１Ｂを貫通して加圧室５
内に伸び、その先端側に多孔性のセラミック，プラスチ
ック等からなる多孔管部１０Ａを有し、糸保持部材２及
び蓋部材１Ｂに固定されている。Reference numeral 10 denotes a gas-liquid (or air) cylindrical case 1
The cleaning supply pipe is blown out into the pressurizing chamber 5 and is configured as a hollow columnar body, and penetrates the lid member 1B so that the tip is located in the cylindrical case 1 along the axial direction of the cylindrical case 1. Pressure chamber 5
It has a porous tube portion 10A extending inward and having a porous ceramic, plastic, or the like on the tip side thereof, and is fixed to the thread holding member 2 and the lid member 1B.
【００２１】筒状ケース１内に一端１１Ａを閉塞した中
空糸１１の束１２が収容され、中空糸１１の束１２の他
端１２Ｂが糸保持部材２に固定して支持されている。な
お、中空糸１１は洗浄用供給管１０より短いが、長さが
ほぼ同じになっている。中空糸１１の他端１１Ｂは透過
室６内に開口している。また、洗浄用供給管１０は中空
糸１１の束１２の中央部に挿入された状態で位置してい
る。A bundle 12 of hollow fibers 11 whose one end 11A is closed is accommodated in the tubular case 1, and the other end 12B of the bundle 12 of hollow fibers 11 is fixedly supported by the yarn holding member 2. Although the hollow fiber 11 is shorter than the cleaning supply pipe 10, the hollow fiber 11 has almost the same length. The other end 11B of the hollow fiber 11 is open in the permeation chamber 6. Further, the cleaning supply pipe 10 is positioned so as to be inserted into the central portion of the bundle 12 of hollow fibers 11.
【００２２】図２は上記の膜濾過モジュールＭを配置し
た濾過システム配管系統図を示す。図において、膜濾過
モジュールＭの原液入口８は第１配管１２を介して原液
槽１３に接続され、第１配管１２の途中には、循環ポン
プ１４及び第１バルブ１５が上流側から順番に介装され
ている。また、膜濾過モジュールＭの濃縮液出口９には
第２バルブ１６を有する第２配管１７が接続されてい
る。さらに、膜濾過モジュールＭの透過液出口７には第
３バルブ１８を有する第３配管１９が接続されている。FIG. 2 shows a piping system diagram of a filtration system in which the above-mentioned membrane filtration module M is arranged. In the figure, the stock solution inlet 8 of the membrane filtration module M is connected to a stock solution tank 13 via a first pipe 12, and a circulation pump 14 and a first valve 15 are provided in the middle of the first pipe 12 in order from the upstream side. It is equipped. A second pipe 17 having a second valve 16 is connected to the concentrated liquid outlet 9 of the membrane filtration module M. Further, a third pipe 19 having a third valve 18 is connected to the permeate outlet 7 of the membrane filtration module M.
【００２３】２０はコンプレッサで、このコンプレッサ
２０に分岐接続された空気供給管２１，２２，２３は、
第１配管１２の途中部分、洗浄用供給管１０の入口１０
Ｂ，第３配管１９の途中部分にそれぞれ接続され、空気
供給管２１，２２，２３の途中には、それぞれ第１空気
バルブ２１Ａ，第２空気バルブ２２Ａ，第３空気バルブ
２３Ａがそれぞれ介装されている。Reference numeral 20 is a compressor, and the air supply pipes 21, 22 and 23 branched and connected to the compressor 20 are
The middle portion of the first pipe 12, the inlet 10 of the cleaning supply pipe 10
B, a first air valve 21A, a second air valve 22A, and a third air valve 23A, respectively, which are connected to the middle portions of the B and third pipes 19, and are respectively interposed in the middle of the air supply pipes 21, 22, and 23. ing.
【００２４】また、洗浄用供給管１０の入口１０Ｂに
は、第４配管２４を介して洗浄水槽２５が接続されてい
る。第４配管２４の途中にはポンプ２６及び第４バルブ
２７が介装されている。第４配管２４の途中から分岐管
２８が枝分かれし、第３配管１９の途中部分に接続し、
その途中には第５バルブ２９が介装されている。A cleaning water tank 25 is connected to the inlet 10B of the cleaning supply pipe 10 via a fourth pipe 24. A pump 26 and a fourth valve 27 are provided in the middle of the fourth pipe 24. A branch pipe 28 branches from the middle of the fourth pipe 24 and is connected to a middle portion of the third pipe 19,
A fifth valve 29 is provided on the way.
【００２５】しかして、第１バルブ１５を開いた状態
で、循環ポンプ１４により、原液槽１３内の原液が、膜
濾過モジュールＭの原液入口８に送られる。膜濾過モジ
ュールＭでは、原液入口８から原液が筒状ケース１の加
圧室５内に供給され、中空糸１１を通過して濾過され、
透過液が透過室６内に導かれ、透過液出口７から排出さ
れ、第３配管１９に送られる。With the first valve 15 open, the circulation pump 14 sends the stock solution in the stock solution tank 13 to the stock solution inlet 8 of the membrane filtration module M. In the membrane filtration module M, the undiluted solution is supplied from the undiluted solution inlet 8 into the pressurizing chamber 5 of the cylindrical case 1, and is filtered through the hollow fiber 11.
The permeated liquid is guided into the permeated chamber 6, discharged from the permeated liquid outlet 7, and sent to the third pipe 19.
【００２６】一方、加圧室５で透過されなかった原液
は、濃縮され、濃縮液出口９に導かれ、第２配管１７
（第２バルブ１６は開状態）を介して原液槽１３に戻
る。このようにして、原液は膜濾過モジュールＭと原液
槽１３の間を循環する。この場合、第２バルブ１６を絞
ることにより、加圧室５内の原液の圧力を上げ、膜間差
圧を生じさせ、上述の原液の濾過が中空糸１１の膜面で
有効に行なわれる。On the other hand, the undiluted solution that has not permeated in the pressurizing chamber 5 is concentrated and guided to the concentrated solution outlet 9, and the second pipe 17
(The second valve 16 is open) and returns to the stock solution tank 13. In this way, the stock solution circulates between the membrane filtration module M and the stock solution tank 13. In this case, by squeezing the second valve 16, the pressure of the stock solution in the pressurizing chamber 5 is increased to generate a transmembrane pressure difference, and the above-mentioned stock solution is effectively filtered on the membrane surface of the hollow fiber 11.
【００２７】そして、中空糸１１の膜面にゲル状物質が
付着した場合には、洗浄水槽２５内の洗浄水を、ポンプ
２６により洗浄用供給管１０の入口１０Ｂに送ると同時
に空気供給管２２により洗浄用供給管１０の入口１０Ｂ
に空気を送るか、或いは空気のみを送る。これにより、
図５に示すように、洗浄用供給管１０から加圧室５内
に、気液（または空気）が吹き出され、その気泡で中空
糸１１の膜面に付着したゲル状物質が膜面から引きちぎ
られ、膜面からゲル状物質が除去される。When the gel-like substance adheres to the membrane surface of the hollow fiber 11, the washing water in the washing water tank 25 is sent to the inlet 10B of the washing supply pipe 10 by the pump 26, and at the same time, the air supply pipe 22. The inlet 10B of the cleaning supply pipe 10
To the air, or to send only air. This allows
As shown in FIG. 5, gas-liquid (or air) is blown out from the cleaning supply pipe 10 into the pressurizing chamber 5, and the gel-like substance adhered to the membrane surface of the hollow fiber 11 by the bubbles is torn off from the membrane surface. Thus, the gel-like substance is removed from the film surface.
【００２８】また、透過液を得ることができない場合に
は、第３バルブ１８を閉じ、第５バルブ２９を開けて、
上記運転に逆洗が付加され、さらに強力な洗浄が施され
る。次に、原液として、ＳＳ濃度３０００（ｍｇ／リッ
トル）の活性汚泥を含む液を使用し、孔径０．１（μ
ｍ）の中空糸１１を使用した場合における、従来の膜濾
過モジュールに対する本実施例の膜濾過モジュールＭの
比較テスト内容を説明する。When the permeated liquid cannot be obtained, the third valve 18 is closed and the fifth valve 29 is opened.
Backwash is added to the above operation, and more powerful washing is performed. Next, as the stock solution, a solution containing activated sludge with an SS concentration of 3000 (mg / liter) was used, and the pore size was 0.1 (μ
A comparison test content of the membrane filtration module M of the present embodiment with respect to the conventional membrane filtration module when the hollow fiber 11 of m) is used will be described.
【００２９】本実施例の膜濾過モジュールＭの中空糸１
１の束１２の仕様については、膜外径＝０・４５ｍｍ、
膜内径＝０・４０ｍｍ、膜長さ＝２４０ｍｍ、膜本数＝
５９０本、充填率＝３３％、膜面積＝０．２平方ｍとな
っており、これに対して従来の膜濾過モジュールは充填
率＝３０％だけが相違し、他の項目の値は同一となって
いる。また、膜面流速は０．６ｍ／秒に、当初の膜間差
圧は０．５ｋｇ／平方ｃｍに設定されている。Hollow fiber 1 of the membrane filtration module M of this embodiment
Regarding the specifications of the bundle 12 of 1, the outer diameter of the membrane = 0.45 mm,
Membrane inner diameter = 0.40 mm, membrane length = 240 mm, number of membranes =
590 pieces, filling rate = 33%, membrane area = 0.2 square m, whereas the conventional membrane filtration module is different only in the filling rate = 30%, and the values of other items are the same. Is becoming The membrane surface flow velocity is set to 0.6 m / sec, and the initial transmembrane pressure difference is set to 0.5 kg / square cm.
【００３０】かかる条件設定の下に、以下の３つの運転
（条件，条件，条件）を行った。 条件においては、従来の上記仕様の膜濾過モジュール
を使用し、４分３０秒間透過液を得る運転を行ない、３
０秒間水による逆洗運転を行なう。Under the condition setting, the following three operations (condition, condition, condition) were performed. Under the conditions, the conventional membrane filtration module with the above specifications was used, and the operation for obtaining the permeated liquid was performed for 4 minutes and 30 seconds.
Perform backwash operation with water for 0 seconds.
【００３１】条件においては、従来の上記仕様の膜濾
過モジュールを使用し、４分３０秒間透過液を得る運転
及び循環ライン途中のバルブからエア洗浄を行ない、さ
らに、３０秒間水による逆洗運転を行なう。Under the conditions, a conventional membrane filtration module having the above-mentioned specifications is used, an operation for obtaining a permeated liquid for 4 minutes and 30 seconds, air washing from a valve in the middle of the circulation line, and a back washing operation with water for 30 seconds. To do.
【００３２】条件においては、本実施例の上記仕様の
膜濾過モジュールＭを使用し、４分３０秒間透過液を得
る運転及び洗浄用供給管１０からエア洗浄を行なう。上
記運転による圧力損失と経日変化の関係は図６に示され
る。Under the conditions, the membrane filtration module M having the above specifications of the present embodiment is used, and the operation for obtaining the permeated liquid for 4 minutes and 30 seconds and the air cleaning from the cleaning supply pipe 10 are performed. The relationship between the pressure loss due to the above operation and the change with time is shown in FIG.
【００３３】従来の条件では、圧力損失が２日で１ｋ
ｇ／平方ｃｍ程度まで上昇した。従来の条件では、圧
力損失が３０日で１ｋｇ／平方ｃｍ程度まで上昇した。
本実施例の条件では、圧力損失が３０日経過しても当
初と余り変化が無く、０．１ｋｇ／平方ｃｍ程度であっ
た。Under the conventional conditions, the pressure loss is 1 k in 2 days.
It rose to about g / square cm. Under the conventional conditions, the pressure loss increased to about 1 kg / square cm in 30 days.
Under the conditions of this example, the pressure loss did not change much from the initial value even after 30 days, and was about 0.1 kg / square cm.
【００３４】また、上記運転による透過流速と経日変化
の関係は図７に示される。条件，条件，条件と
も、当初は５立方ｍ／平方ｍ／日であった。従来の条
件では、２日で０．３立方ｍ／平方ｍ／日程度まで急激
に下がった。従来の条件では、２０日位まで徐々に下
がり、３０日には０．２立方ｍ／平方ｍ／日程度で安定
した。本実施例の条件では、３０日経過した時点で、
１．５立方ｍ／平方ｍ／日程度に安定した。FIG. 7 shows the relationship between the permeation flow rate and the change with time due to the above operation. Initially, the conditions, conditions, and conditions were 5 cubic m / square m / day. Under the conventional conditions, it rapidly dropped to about 0.3 cubic m / square m / day in 2 days. Under conventional conditions, it gradually decreased to around 20 days, and stabilized at around 0.2 cubic m / square m / day by 30 days. Under the conditions of this example, after 30 days,
Stable at around 1.5 cubic m / square m / day.
【００３５】以上のように、本実施例の条件が、従来
の条件，条件より、圧力損失が少なく、透過流速が
大きいことが確かめられている。以上の如き構成によれ
ば、洗浄用供給管１０を筒状ケースの加圧室５内に配設
し、この洗浄用供給管１０は中空糸１１の束１２の中央
部に位置しているので、中空糸１１の膜面にゲル状物質
が付着した場合には、洗浄用供給管１１から加圧室５内
に吹き出す気液（または空気）により、洗浄用供給管１
０の気泡で膜面に付着したゲル状物質を膜面から引きち
ぎり、膜面をきれいに保つことができ、また、常時、洗
浄用供給管１０から、気液（または空気）を吹す出こと
により、膜面へのゲル状物質の付着を事前に防止するこ
とができる。As described above, it has been confirmed that the condition of the present embodiment has less pressure loss and higher permeation flow velocity than the conventional conditions and conditions. According to the above configuration, the cleaning supply pipe 10 is arranged in the pressurizing chamber 5 of the cylindrical case, and the cleaning supply pipe 10 is located at the center of the bundle 12 of the hollow fibers 11. When a gel-like substance adheres to the membrane surface of the hollow fiber 11, the cleaning supply pipe 1 is washed with gas / liquid (or air) blown from the cleaning supply pipe 11 into the pressurizing chamber 5.
The gel-like substance attached to the film surface can be torn off by the bubbles of 0 to keep the film surface clean, and the gas-liquid (or air) can be constantly blown out from the cleaning supply pipe 10. Thereby, the adhesion of the gel-like substance to the film surface can be prevented in advance.
【００３６】即ち、中空糸１１の膜面へのゲル状物質の
付着を防止することができるので、原液の透過流速を低
下させず、圧力損失を少なくし、原液の透過効率を高く
維持することができ、当該膜濾過モジュールＭの交換頻
度を少なくし、ランニングコストを低くすることができ
る。That is, since it is possible to prevent the gel-like substance from adhering to the membrane surface of the hollow fiber 11, the permeation flow rate of the stock solution is not reduced, the pressure loss is reduced, and the permeation efficiency of the stock solution is kept high. Therefore, the frequency of replacement of the membrane filtration module M can be reduced and the running cost can be reduced.
【００３７】また、洗浄用供給管１１から気液を加圧室
５内に吹き出すと同時に、必要に応じて空気供給管２１
により空気を原液入口８に送り、原液入口８から原液と
空気を同時供給することもでき、或いは、透過液出口７
から洗浄液を透過室６に流すことにより、逆洗も同時に
行ない、中空糸１１の膜面へのゲル状物質の付着防止の
効果を高めることができる。Further, at the same time as the gas / liquid is blown out from the cleaning supply pipe 11 into the pressurizing chamber 5, the air supply pipe 21 is also supplied if necessary.
It is also possible to send air to the undiluted solution inlet 8 and simultaneously supply undiluted solution and air from the undiluted solution inlet 8 or the permeated solution outlet 7
By flowing the cleaning liquid from the above into the permeation chamber 6, backwashing can be performed at the same time, and the effect of preventing the gel-like substance from adhering to the membrane surface of the hollow fiber 11 can be enhanced.
【００３８】さらに、筒状ケース１から洗浄用供給管１
０を糸保持部材２を取り外すことができるので、万一汚
れても、保守が容易である。なお、本実施例において
は、洗浄用供給管１０には気体として空気を供給する場
合について説明したが、空気に限定されず、例えば窒素
でも良い。Further, the cleaning case 1 is supplied from the cylindrical case 1.
Since the thread holding member 2 can be detached from 0, maintenance is easy even if it becomes dirty. In this embodiment, the case where air is supplied to the cleaning supply pipe 10 as a gas has been described, but the present invention is not limited to air and may be nitrogen, for example.
【００３９】また、本実施例においては、洗浄用供給管
１０の数が１本の場合を例に挙げて説明したが、複数本
でも良い。さらに、本実施例においては、中空糸１１の
膜面にゲル状物質が付着した場合にゲル状物質を洗浄し
ているが、常時、洗浄用供給管１０から気液（または空
気）を吹き出させ、中空糸１１の膜面へのゲル状物質の
付着を予め防止することができる。In this embodiment, the case where the number of the cleaning supply pipes 10 is one has been described as an example, but a plurality of cleaning supply pipes 10 may be used. Further, in the present embodiment, the gel-like substance is washed when the gel-like substance adheres to the membrane surface of the hollow fiber 11, but the gas-liquid (or air) is constantly blown out from the washing supply pipe 10. It is possible to prevent the gel-like substance from adhering to the membrane surface of the hollow fiber 11 in advance.
【００４０】そして、本実施例においては、気液を筒状
ケース１の加圧室５内に吹き出す洗浄用供給管１０の多
孔管部１０Ａは、多孔性のセラミック，プラスチック等
からなるが、かかる材質に限定されない。In the present embodiment, the porous pipe portion 10A of the cleaning supply pipe 10 for blowing gas and liquid into the pressurizing chamber 5 of the cylindrical case 1 is made of porous ceramic, plastic or the like. The material is not limited.
【００４１】図８は本発明の第２実施例に係わる膜濾過
モジュールＭ２を示し、第１実施例で洗浄用供給管１０
の長さが、中空糸１１とほぼ同じになっているのに対し
て、本実施例では、洗浄用供給管３１の長さが、中空糸
１１の約半分程度となっており、また、第１実施例の洗
浄用供給管１０が筒状ケース１を貫通しているのに対し
て多孔管部３１Ａを有する洗浄用供給管３１が筒状ケー
ス１内に収容され、洗浄用供給管３１に入口部材３２が
接続されている。第２実施例によれば、第１実施例と同
様の作用，効果を奏する。FIG. 8 shows a membrane filtration module M2 according to a second embodiment of the present invention, in which the cleaning supply pipe 10 is used in the first embodiment.
The length of the cleaning supply pipe 31 is about half the length of the hollow fiber 11 in the present embodiment, while the length of the cleaning fiber is substantially the same as that of the hollow fiber 11. While the cleaning supply pipe 10 of the first embodiment penetrates the cylindrical case 1, the cleaning supply pipe 31 having the perforated pipe portion 31A is housed in the cylindrical case 1 and is attached to the cleaning supply pipe 31. The inlet member 32 is connected. According to the second embodiment, the same operation and effect as those of the first embodiment are obtained.
【００４２】図９は本発明の第３実施例に係わる膜濾過
モジュールＭ３を示し、第１実施例で洗浄用供給管１０
が糸保持部材２を貫通しているのに対して、洗浄用供給
管４１が加圧室５の端壁面５Ｂを貫通して支持されてお
り、濃縮液出口４２が加圧室５の側壁面５Ａに形成され
ている。第３実施例によれば、第１実施例と同様の作
用，効果を奏する。FIG. 9 shows a membrane filtration module M3 according to a third embodiment of the present invention, in which the cleaning supply pipe 10 is used in the first embodiment.
While penetrating the yarn holding member 2, the cleaning supply pipe 41 penetrates through the end wall surface 5B of the pressurizing chamber 5 and is supported, and the concentrated liquid outlet 42 is the side wall surface of the pressurizing chamber 5. 5A is formed. According to the third embodiment, the same action and effect as those of the first embodiment are obtained.
【００４３】図１０は本発明の第４実施例に係わる膜濾
過モジュールＭ４を示し、中空糸５１の束５２の両端側
が、糸保持部材５３及び洗浄用供給管５４の円形保持部
材５４Ａに支持されており、第４実施例によれば、第１
実施例と同様の作用，効果を奏する。FIG. 10 shows a membrane filtration module M4 according to a fourth embodiment of the present invention, in which both ends of a bundle 52 of hollow fibers 51 are supported by a yarn holding member 53 and a circular holding member 54A of a cleaning supply pipe 54. According to the fourth embodiment, the first
The same action and effect as those of the embodiment are obtained.
【００４４】図１１は本発明の第５実施例に係わる膜濾
過モジュールＭ５を示し、第１実施例と同様に構成され
ており、洗浄用供給管６１は、その先端部に多孔管部６
１Ａを有している。さらに、加圧室５の側壁面５Ａに気
体排出口６２が形成されている。FIG. 11 shows a membrane filtration module M5 according to a fifth embodiment of the present invention, which has the same structure as that of the first embodiment, and the cleaning supply pipe 61 has a porous pipe portion 6 at its tip.
It has 1A. Further, a gas discharge port 62 is formed on the side wall surface 5A of the pressurizing chamber 5.
【００４５】本実施例によれば、第１実施例と同様の作
用，効果を奏するが、さらに、本実施例では、原液の流
入を停止した状態か、または、原液を、膜濾過モジュー
ルＭ５の下方より濃縮液出口９から緩やかな速度で供給
して原液入口８から排出する状態で、洗浄用供給管６１
から加圧室５内に気液または空気を供給することによ
り、中空糸１１が洗浄され、加圧室５内に吹き込まれた
空気は、気体排出口６２から排出される。According to this embodiment, the same action and effect as those of the first embodiment are obtained, but further, in this embodiment, the inflow of the stock solution is stopped or the stock solution is supplied to the membrane filtration module M5. In the state of being supplied from the concentrated liquid outlet 9 from below at a slow speed and discharged from the raw liquid inlet 8, the cleaning supply pipe 61
By supplying gas-liquid or air into the pressure chamber 5 from the hollow fiber 11, the hollow fiber 11 is washed, and the air blown into the pressure chamber 5 is discharged from the gas discharge port 62.
【００４６】図１２は本発明の第６実施例に係わる膜濾
過モジュールＭ６を示し、第２実施例とほぼ同様に構成
されており、洗浄用供給管７１は、その先端部に多孔管
部７１Ａを有している。さらに、加圧室５の側壁面５Ａ
に気体排出口７２が形成され、また、筒状ケース１の加
圧室５の端壁面５Ｂに他の洗浄用供給管７３が設けられ
ている。FIG. 12 shows a membrane filtration module M6 according to the sixth embodiment of the present invention, which has substantially the same structure as that of the second embodiment. The cleaning supply pipe 71 has a porous pipe portion 71A at its tip. have. Further, the side wall surface 5A of the pressurizing chamber 5
A gas discharge port 72 is formed in the inner wall surface 5 </ b> B of the pressurizing chamber 5 of the cylindrical case 1 and another cleaning supply pipe 73 is provided.
【００４７】本実施例によれば、第２実施例と同様の作
用，効果を奏するが、さらに、原液の流入を停止した状
態で、洗浄用供給管３２，他の洗浄用供給管７３の両管
から同時にまたは交互に加圧室５内に気液または空気を
供給することにより、中空糸１１の洗浄をより効果的に
行ない、加圧室５内に吹き込まれた空気は、気体排出口
７２から排出される。According to the present embodiment, the same action and effect as those of the second embodiment are obtained, but both the cleaning supply pipe 32 and the other cleaning supply pipe 73 are further operated in the state where the inflow of the undiluted solution is stopped. By supplying gas or liquid or air into the pressurizing chamber 5 from the pipes simultaneously or alternately, the hollow fibers 11 can be cleaned more effectively, and the air blown into the pressurizing chamber 5 can be discharged through the gas discharge port 72. Discharged from.
【００４８】図１３は本発明の第７実施例に係わる膜濾
過モジュールＭ７を示し、膜濾過モジュールＭ７は、筒
状ケース８１と、筒状ケース８１内に収容され一端８２
Ａが閉塞する中空糸８２の束８３と、筒状ケース８１内
に、該筒状ケース８１に中空糸８２の束８３の一端側を
支持して設けられた第１糸保持部材８４と、筒状ケース
８１に中空糸８２の束８３の他端側を支持して設けられ
た第２糸保持部材８５とを備えている。第１糸保持部材
８４には多数の孔８４Ａが形成されている。FIG. 13 shows a membrane filtration module M7 according to the seventh embodiment of the present invention. The membrane filtration module M7 is housed in the tubular case 81 and the tubular case 81 and has an end 82.
A bundle 83 of hollow fibers 82 in which A is closed, a first yarn holding member 84 provided in the tubular case 81 so as to support one end side of the bundle 83 of hollow fibers 82 in the tubular case 81, and a tube. The case 81 includes a second yarn holding member 85 provided to support the other end of the bundle 83 of hollow fibers 82. Many holes 84 </ b> A are formed in the first thread holding member 84.
【００４９】筒状ケース８１内は、第１糸保持部材８４
と第２糸保持部材８５の間に位置し壁面に濃縮液出口８
８が形成された加圧室８７と、加圧室８７と連通した状
態で第１糸保持部材８４を介して仕切られ原液入口８８
を有する原液供給室８９と、第２糸保持部材８５で仕切
られ中空糸８２の他端８２Ｂが開口する透過室９０とに
区画され、透過室９０の壁面には透過出口９１が設けら
れている。The inside of the cylindrical case 81 has a first thread holding member 84.
Between the second thread holding member 85 and the second thread holding member 85 and the concentrated liquid outlet 8 on the wall surface.
8 is formed, and the raw liquid inlet 88 is partitioned by the first thread holding member 84 in a state of communicating with the pressure chamber 87.
And a permeation chamber 90 that is partitioned by the second yarn holding member 85 and has the other end 82B of the hollow fiber 82 that is open, and a permeation outlet 91 is provided on the wall surface of the permeation chamber 90. ..
【００５０】そして、多数の細孔が形成されて空気また
は気液を筒状ケース８１の加圧室８７内に吹き出す洗浄
用供給管９２が該加圧室８７内に配設されている。洗浄
用供給管９２にはこれに直交する供給部９３から空気ま
たは気液が供給されるようになっている。Inside the pressure chamber 87, a cleaning supply pipe 92 is formed in which a large number of pores are formed and which blows air or gas / liquid into the pressure chamber 87 of the cylindrical case 81. Air or gas-liquid is supplied to the cleaning supply pipe 92 from a supply unit 93 orthogonal to this.
【００５１】しかして、本実施例においては、原液は、
加圧室８７内に導かれ、加圧室８７内で中空糸８２によ
り濾過され、透過液が中空糸８２を介して透過室９０に
送られ、一方、濾過されなかった原液は、濃縮され、濃
縮液出口８６に導かれるが、洗浄用供給管９２から、空
気または気液を筒状ケース８１の加圧室８７内に吹き出
すことにより、中空糸８２の膜面にゲル状物質が付着す
ることを防止することができる。Therefore, in this embodiment, the stock solution is
It is introduced into the pressurizing chamber 87, is filtered by the hollow fiber 82 in the pressurizing chamber 87, and the permeate is sent to the permeate chamber 90 via the hollow fiber 82, while the unfiltered stock solution is concentrated, Although it is guided to the concentrated liquid outlet 86, air or gas-liquid is blown out from the cleaning supply pipe 92 into the pressurizing chamber 87 of the cylindrical case 81, so that the gel substance adheres to the membrane surface of the hollow fiber 82. Can be prevented.
【００５２】[0052]
【発明の効果】以上説明したように、請求項１記載の発
明によれば、気体または気液を吹き出す洗浄用供給管を
筒状ケースの加圧室内に配設したので、中空糸の膜面に
ゲル状物質が付着した場合には、洗浄用供給管からの気
泡で中空糸の膜面に付着したゲル状物質を膜面から除去
した状態に保つことができ、また、常時、洗浄用供給管
から、気体または気液を吹き出すことにより、膜面への
ゲル状物質の付着を事前に防止することができる。As described above, according to the first aspect of the invention, since the cleaning supply pipe for blowing out gas or gas-liquid is arranged in the pressurizing chamber of the cylindrical case, the hollow fiber membrane surface is provided. If a gel-like substance adheres to the membrane, the gel-like substance attached to the membrane surface of the hollow fiber can be kept removed from the membrane surface by air bubbles from the washing supply pipe. By blowing out gas or gas-liquid from the tube, it is possible to prevent the gel-like substance from adhering to the film surface in advance.
【００５３】この結果、透過流速を低下させず、膜モジ
ュールの圧力損失を少なくし、原液の透過処理効率を高
く維持することができ、ランニングコストを低くするこ
とができる効果を奏する。As a result, the permeation flow velocity is not reduced, the pressure loss of the membrane module is reduced, the permeation treatment efficiency of the stock solution can be maintained high, and the running cost can be reduced.
【００５４】また、請求項２記載の発明によれば、請求
項１記載の発明と同様の効果を奏する。According to the invention of claim 2, the same effect as that of the invention of claim 1 can be obtained.
【図１】本発明の第１実施例に係る膜濾過モジュールの
断面図である。FIG. 1 is a cross-sectional view of a membrane filtration module according to a first embodiment of the present invention.
【図２】同膜濾過モジュールを配置した濾過システム配
管系統図を示す。FIG. 2 shows a piping system diagram of a filtration system in which the membrane filtration module is arranged.
【図３】図１の洗浄用供給管及び糸膜保持部材を示す側
面図である。FIG. 3 is a side view showing the cleaning supply pipe and the thread film holding member of FIG. 1.
【図４】図１の洗浄用供給管及び糸膜保持部材を示す平
面図である。FIG. 4 is a plan view showing a cleaning supply pipe and a thread film holding member of FIG.
【図５】同膜濾過モジュールの作用状態原理説明図であ
る。FIG. 5 is an explanatory diagram of the operating state principle of the membrane filtration module.
【図６】同膜濾過モジュールの効果を示す説明図であ
る。FIG. 6 is an explanatory diagram showing an effect of the membrane filtration module.
【図７】同膜濾過モジュールのの効果を示す説明図であ
る。FIG. 7 is an explanatory diagram showing an effect of the membrane filtration module.
【図８】本発明の第２実施例に係る膜濾過モジュールの
断面図である。FIG. 8 is a sectional view of a membrane filtration module according to a second embodiment of the present invention.
【図９】本発明の第３実施例に係る膜濾過モジュールの
断面図である。FIG. 9 is a sectional view of a membrane filtration module according to a third embodiment of the present invention.
【図１０】本発明の第４実施例に係る膜濾過モジュール
の断面図である。FIG. 10 is a sectional view of a membrane filtration module according to a fourth embodiment of the present invention.
【図１１】本発明の第５実施例に係る膜濾過モジュール
の断面図である。FIG. 11 is a sectional view of a membrane filtration module according to a fifth embodiment of the present invention.
【図１２】本発明の第６実施例に係る膜濾過モジュール
の断面図である。FIG. 12 is a sectional view of a membrane filtration module according to a sixth embodiment of the present invention.
【図１３】本発明の第７実施例に係る膜濾過モジュール
の断面図である。FIG. 13 is a sectional view of a membrane filtration module according to a seventh embodiment of the present invention.
【図１４】従来の膜濾過モジュールの断面図である。FIG. 14 is a cross-sectional view of a conventional membrane filtration module.
【符号の説明】 １ 筒状ケース ２ 糸保持部材 ５ 加圧室 ６ 透過室 ７ 透過液出口 ８ 原液入口 ９ 濃縮液出口 １０ 洗浄用供給管 １１ 中空糸 １１Ａ 一端 １１Ｂ 他端 Ｍ 膜濾過モジュール[Explanation of Codes] 1 Cylindrical case 2 Thread holding member 5 Pressurizing chamber 6 Permeation chamber 7 Permeate outlet 8 Raw liquid inlet 9 Concentrated liquid outlet 10 Washing supply pipe 11 Hollow fiber 11A One end 11B One end M Membrane filtration module
Claims (2)
出口を有する筒状ケースと、 一端を閉塞した中空糸の束と、 中空糸の他端側を支持する糸保持部材とを備え、 糸保持部材により、筒状ケース内を、原液入口及び濃縮
液出口を有する加圧室と、透過液出口を有する透過室と
に区画する膜濾過モジュールにおいて、 気体または気液を筒状ケースの加圧室内に吹き出す洗浄
用供給管を該加圧室内に配設したことを特徴とする膜濾
過モジュール。1. A cylindrical case having a raw liquid inlet, a concentrated liquid outlet, and a permeated liquid outlet on a wall surface, a bundle of hollow fibers closed at one end, and a yarn holding member supporting the other end of the hollow fibers, In a membrane filtration module that divides the inside of the tubular case into a pressurizing chamber having a raw liquid inlet and a concentrated liquid outlet and a permeate chamber having a permeate outlet by a thread holding member, gas or gas-liquid is added to the tubular case. A membrane filtration module, wherein a cleaning supply pipe blown into the pressure chamber is arranged in the pressure chamber.
出口を有する筒状ケースと、 一端を閉塞した中空糸の束と、 中空糸の一端側を支持する第１糸保持部材と、 中空糸の他端側を支持する第２糸保持部材とを備え、 第１糸保持部材及び第２糸保持部材により、筒状ケース
内を、第１糸保持部材と第２糸保持部材の間に位置し濃
縮液出口を有する加圧室と、加圧室内と連通した状態で
第１糸保持部材を介して加圧室と仕切られ原液入口を有
する原液供給室と、第２糸保持部材を介して加圧室と仕
切られ透過液出口を有する透過室とに区画し、 気体または気液を筒状ケースの加圧室内に吹き出す洗浄
用供給管を該加圧室内に配設したことを特徴とする膜濾
過モジュール。2. A cylindrical case having a raw liquid inlet, a concentrated liquid outlet, and a permeated liquid outlet on a wall surface, a bundle of hollow fibers whose one end is closed, a first yarn holding member for supporting one end of the hollow fibers, and a hollow. A second thread holding member that supports the other end side of the thread is provided, and the inside of the cylindrical case is between the first thread holding member and the second thread holding member by the first thread holding member and the second thread holding member. A pressure chamber having a concentrated liquid outlet, a raw liquid supply chamber having a raw liquid inlet partitioned from the pressure chamber through a first yarn holding member in a state of communicating with the pressure chamber, and a second yarn holding member. Is divided into a pressure chamber and a permeation chamber having a permeated liquid outlet, and a cleaning supply pipe for blowing gas or gas-liquid into the pressure chamber of the cylindrical case is arranged in the pressure chamber. Membrane filtration module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32592691A JPH05154356A (en) | 1991-12-10 | 1991-12-10 | Membrane filter module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32592691A JPH05154356A (en) | 1991-12-10 | 1991-12-10 | Membrane filter module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05154356A true JPH05154356A (en) | 1993-06-22 |
Family
ID=18182139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32592691A Pending JPH05154356A (en) | 1991-12-10 | 1991-12-10 | Membrane filter module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05154356A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002022243A2 (en) * | 2000-09-13 | 2002-03-21 | Klaus Vossenkaul | Membrane filter used in water treatment |
| AT408955B (en) * | 2000-09-28 | 2002-04-25 | Va Tech Wabag Gmbh | MEMBRANE FILTER SYSTEM AND METHOD FOR FILTERING |
| 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 |
| JP2006272336A (en) * | 1996-12-20 | 2006-10-12 | Us Filter Wastewater Group Inc | Scouring method |
| US7160454B2 (en) * | 2000-09-13 | 2007-01-09 | Koch Membrane Systems Gmbh | Membrane filter for water treatment |
| JP2008110306A (en) * | 2006-10-31 | 2008-05-15 | Meidensha Corp | Membrane module, water treating apparatus and membrane separation system |
| WO2014148084A1 (en) * | 2013-03-22 | 2014-09-25 | 住友電気工業株式会社 | Filter device and cleaning method for filter module |
| JP2015226884A (en) * | 2014-06-02 | 2015-12-17 | 栗田工業株式会社 | Hollow fiber membrane module and cleaning method therefor |
| CN105854620A (en) * | 2016-06-06 | 2016-08-17 | 南京鼎仕和膜科技有限公司 | Membrane system material washing method and device |
| WO2017009966A1 (en) * | 2015-07-15 | 2017-01-19 | 栗田工業株式会社 | Hollow fiber membrane module and cleaning method thereof |
| JP6122525B1 (en) * | 2016-03-29 | 2017-04-26 | 栗田工業株式会社 | Cleaning method for hollow fiber membrane module |
| JP2017217580A (en) * | 2016-06-03 | 2017-12-14 | 株式会社クラレ | Hollow fiber membrane module, and cleaning method therefor |
| JP2017217581A (en) * | 2016-06-03 | 2017-12-14 | 株式会社クラレ | Hollow fiber membrane filter device and cleaning method of the same |
| JPWO2020194820A1 (en) * | 2019-03-27 | 2021-04-08 | 栗田工業株式会社 | Hollow fiber membrane module and its cleaning method |
-
1991
- 1991-12-10 JP JP32592691A patent/JPH05154356A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272336A (en) * | 1996-12-20 | 2006-10-12 | Us Filter Wastewater Group Inc | 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 |
| WO2002022243A2 (en) * | 2000-09-13 | 2002-03-21 | Klaus Vossenkaul | Membrane filter used in water treatment |
| WO2002022243A3 (en) * | 2000-09-13 | 2002-06-20 | Klaus Vossenkaul | Membrane filter used in water treatment |
| US7160454B2 (en) * | 2000-09-13 | 2007-01-09 | Koch Membrane Systems Gmbh | Membrane filter for water treatment |
| AT408955B (en) * | 2000-09-28 | 2002-04-25 | Va Tech Wabag Gmbh | MEMBRANE FILTER SYSTEM AND METHOD FOR FILTERING |
| JP2008110306A (en) * | 2006-10-31 | 2008-05-15 | Meidensha Corp | Membrane module, water treating apparatus and membrane separation system |
| JP2014184366A (en) * | 2013-03-22 | 2014-10-02 | Sumitomo Electric Ind Ltd | Filter device and washing method of filtration module |
| WO2014148084A1 (en) * | 2013-03-22 | 2014-09-25 | 住友電気工業株式会社 | Filter device and cleaning method for filter module |
| JP2015226884A (en) * | 2014-06-02 | 2015-12-17 | 栗田工業株式会社 | Hollow fiber membrane module and cleaning method therefor |
| WO2017009966A1 (en) * | 2015-07-15 | 2017-01-19 | 栗田工業株式会社 | Hollow fiber membrane module and cleaning method thereof |
| JP6122525B1 (en) * | 2016-03-29 | 2017-04-26 | 栗田工業株式会社 | Cleaning method for hollow fiber membrane module |
| WO2017168786A1 (en) * | 2016-03-29 | 2017-10-05 | 栗田工業株式会社 | Method for washing hollow fiber membrane module and hollow fiber membrane filtration device |
| JP2017176966A (en) * | 2016-03-29 | 2017-10-05 | 栗田工業株式会社 | Washing method of hollow fiber membrane module |
| CN108883372A (en) * | 2016-03-29 | 2018-11-23 | 栗田工业株式会社 | The method of cleaning and hollow fiber membrane filtration device of hollow fiber film assembly |
| JP2017217580A (en) * | 2016-06-03 | 2017-12-14 | 株式会社クラレ | Hollow fiber membrane module, and cleaning method therefor |
| JP2017217581A (en) * | 2016-06-03 | 2017-12-14 | 株式会社クラレ | Hollow fiber membrane filter device and cleaning method of the same |
| CN105854620A (en) * | 2016-06-06 | 2016-08-17 | 南京鼎仕和膜科技有限公司 | Membrane system material washing method and device |
| JPWO2020194820A1 (en) * | 2019-03-27 | 2021-04-08 | 栗田工業株式会社 | Hollow fiber membrane module and its cleaning method |
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