JPS647805B2 - - Google Patents
Info
- Publication number
- JPS647805B2 JPS647805B2 JP25468785A JP25468785A JPS647805B2 JP S647805 B2 JPS647805 B2 JP S647805B2 JP 25468785 A JP25468785 A JP 25468785A JP 25468785 A JP25468785 A JP 25468785A JP S647805 B2 JPS647805 B2 JP S647805B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- air
- membrane module
- liquid
- 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.)
- Expired
Links
- 239000012510 hollow fiber Substances 0.000 claims description 65
- 239000012528 membrane Substances 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 15
- 238000005374 membrane filtration Methods 0.000 claims description 13
- 238000005201 scrubbing Methods 0.000 description 21
- 239000000706 filtrate Substances 0.000 description 11
- 238000011001 backwashing Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、外側から内側へ通液してろ過する中
空糸膜からなる中空糸膜モジユールを使用し、液
体中に含まれる微細な懸濁物質をろ過するための
中空糸膜ろ過装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention uses a hollow fiber membrane module consisting of a hollow fiber membrane that passes liquid from the outside to the inside for filtration. The present invention relates to a hollow fiber membrane filtration device for filtering substances.
槽内に外側から内側へ通液してろ過する中空糸
膜からなる中空糸膜モジユールを配設し、該中空
糸膜モジユールの下部に整流板を設け、該整流板
の下部にろ過すべき被処理液及び逆洗時のエアス
クラビング用の空気を導入するようにした中空糸
膜ろ過装置では、ろ過時に槽内下方に圧入された
被処理液は、その上部の整流板によつて整流され
て中空糸膜モジユールに至り、各中空糸膜の外側
から内側に通液されてろ過され、ろ液は中空糸膜
の内側から流出し、集液されて槽外に取り出され
る。
A hollow fiber membrane module consisting of a hollow fiber membrane that passes liquid from the outside to the inside for filtration is installed in the tank, a rectifying plate is provided at the bottom of the hollow fiber membrane module, and the material to be filtered is placed under the rectifying plate. In a hollow fiber membrane filtration device that introduces treated liquid and air for air scrubbing during backwashing, the treated liquid that is forced into the lower part of the tank during filtration is rectified by the rectifier plate above it. The liquid reaches the hollow fiber membrane module, passes from the outside to the inside of each hollow fiber membrane, and is filtered.The filtrate flows out from the inside of the hollow fiber membrane, is collected, and taken out of the tank.
このようなろ過を継続するうちに、各中空糸膜
の表面には被処理液中の懸濁物質が捕捉され、次
第に通液抵抗が増大するから、所定時間後にはろ
過を停止して逆洗を行わなければならない。逆洗
は、ろ過時とは逆に、逆洗用の加圧水を各中空糸
膜の内側から外側へと逆方向に通水して表面の付
着物を剥がし易くし、さらに槽内下部に空気を吹
き込んで上昇する気泡により中空糸膜を振動させ
て表面の付着物を剥離するエアスクラビングが行
われている。したがつて、エアスクラビング効果
を高めるためには、中空糸膜と気泡とを十分効果
的に接触させる必要がある。 As this type of filtration continues, suspended substances in the liquid to be treated are captured on the surface of each hollow fiber membrane, gradually increasing resistance to liquid passage, so filtration is stopped after a predetermined period of time and backwashing is performed. must be carried out. In backwashing, pressurized water for backwashing is passed in the opposite direction from the inside to the outside of each hollow fiber membrane, making it easier to remove deposits on the surface, and also pumping air into the lower part of the tank. Air scrubbing is performed in which the hollow fiber membrane is vibrated by rising air bubbles to remove deposits on the surface. Therefore, in order to enhance the air scrubbing effect, it is necessary to bring the hollow fiber membrane into contact with the air bubbles sufficiently effectively.
しかしながら、従来のエアスクラビングでは、
整流板のほとんど前面にわたつて下部から気泡が
通過するために、中空糸膜と接触しない気泡も多
く、効果的な接触を行わしめるためには多量の空
気吹込を必要とするという欠点があつた。また、
気泡との接触効果を高めるために、各中空糸膜モ
ジユールの真下近傍に空気吹出し口を開口させた
空気吹出し管を設ける方法もあるが、構造ならび
に据付が複雑になるという欠点があつた。
However, traditional air scrubbing
Since the air bubbles pass from the bottom over most of the front surface of the current plate, there are many air bubbles that do not come into contact with the hollow fiber membrane, which has the disadvantage that a large amount of air must be blown in order to make effective contact. . Also,
In order to enhance the effect of contact with air bubbles, there is a method of providing an air blowing pipe with an air blowing port opened near the bottom of each hollow fiber membrane module, but this method has the disadvantage that the structure and installation become complicated.
本発明は、このような従来の欠点をなくし、極
めて簡単な構造によつて十分なエアスクラビング
を行い、逆洗効果を高めることができる中空糸膜
ろ過装置を提供することを目的とするものであ
る。 The object of the present invention is to eliminate such conventional drawbacks and provide a hollow fiber membrane filtration device that can perform sufficient air scrubbing and enhance the backwashing effect with an extremely simple structure. be.
本発明は、槽内に、外側から内側へ通液してろ
過する中空糸膜からなる中空糸膜モジユールを配
設し、該中空糸膜モジユールの下部に整流板を設
け、該整流板の下部に被処理液及び空気を導入す
るようにした中空糸膜ろ過装置において、前記整
流板の前記中空糸膜モジユールの真下近傍の部分
以外に液を通すが気泡を通さない網状体を張設し
たことを特徴とし、さらに加えて、槽内の空気吹
出し部の真上以外で前記網状態の上面に上端が開
口し下端が空気導入時に該網状体下部にできる空
気層より下方もしくは槽内の空気吹出し部より下
方まで延長した固形物流出管を配設したことをも
特徴とする中空糸膜ろ過装置を提供するものであ
る。
In the present invention, a hollow fiber membrane module made of a hollow fiber membrane that passes liquid from the outside to the inside for filtration is disposed in a tank, a rectifying plate is provided at the lower part of the hollow fiber membrane module, and a rectifying plate is provided at the lower part of the rectifying plate. In a hollow fiber membrane filtration device that introduces a liquid to be treated and air into a hollow fiber membrane module, a net-like body that allows liquid to pass through but does not allow air bubbles to pass through is provided in a portion of the current plate other than a portion directly below the hollow fiber membrane module. In addition, the upper end is open on the upper surface of the net state other than directly above the air blowing part in the tank, and the lower end is below the air layer formed at the bottom of the net when air is introduced or air blows in the tank. The present invention provides a hollow fiber membrane filtration device characterized in that it is provided with a solid matter outflow pipe extending downward from the section.
したがつて、エアスクラビングの気泡を、中空
糸膜モジユールの真下近傍からのみ集中的に通
し、効果的なエアスクラビングを行い、その他の
部分からは気泡は通過しないから、使用する空気
量は少なくてすみ、さらに中空糸膜表面から剥離
された固形不純物のうち網状体上に残留するよう
な大きなものがあつたときは、固形物流出管を経
て槽底部に洗い流し、槽外へ排出することができ
る。 Therefore, effective air scrubbing is performed by concentrating the air scrubbing air bubbles only from directly below the hollow fiber membrane module, and the air bubbles do not pass from other areas, so the amount of air used is small. In addition, if there are any large solid impurities that remain on the network after being peeled off from the surface of the hollow fiber membrane, they can be flushed to the bottom of the tank through the solids outflow pipe and discharged outside the tank. .
本発明の実施例を図面を参照しながら説明すれ
ば、第１図は全体の概略模式図であつて、槽１内
は仕切板２にてろ過室３とろ液室４とに区画さ
れ、ろ過室３内には外側から内側へ通液してろ過
する中空糸膜の複数本からなる中空糸膜モジユー
ル５が配設、支持され、各中空糸膜の端部はろ液
室４内に開口されている。ろ過室３内の中空糸膜
モジユール５の下部には、液体及び気泡が通る整
流板６が設けられ、整流板６の下部に被処理液の
導入管７と空気導入管８が開口され、空気導入管
８は整流板６の下部に設けられた、一本のパイプ
又はそれに数本の枝管を連通させ、空気吹出し口
を設けた空気吐出し管９に連なつている。
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall schematic diagram, in which the inside of the tank 1 is divided by a partition plate 2 into a filtration chamber 3 and a filtrate chamber 4. A hollow fiber membrane module 5 consisting of a plurality of hollow fiber membranes that passes liquid from the outside to the inside for filtration is disposed and supported in the chamber 3, and the end of each hollow fiber membrane is opened into the filtrate chamber 4. ing. A rectifying plate 6 through which liquid and bubbles pass is provided at the bottom of the hollow fiber membrane module 5 in the filtration chamber 3, and an inlet pipe 7 for the liquid to be treated and an air inlet pipe 8 are opened at the lower part of the rectifying plate 6. The inlet pipe 8 is a single pipe or several branch pipes connected to the pipe provided at the lower part of the rectifying plate 6, and is connected to an air discharge pipe 9 provided with an air outlet.
さらに、整流板６の上面（又は下面）には、液
体は支障なく通り抜けるが、表面張力の働きによ
つて気泡が通り抜けることができない程度の目開
きを持つ金網１０、その他の網状体（多孔板を含
む）が張設され、第２図にも示すように、金網１
０の各中空糸膜モジユール５の真下近傍の部分を
切欠いて、この切欠部以外のところからは気泡が
通り抜けることができないようになつている。こ
の気泡の通過を阻止する金網１０の網目は20メツ
シユ以上がよく、通常のエアスクラビング用の空
気圧（１〜２Kgｆ／cm2程度）に対しては25〜40メ
ツシユが最適である。 Further, on the upper surface (or lower surface) of the rectifier plate 6, there is provided a wire mesh 10 or other mesh material (perforated plate) having openings that allow liquid to pass through without any problem but prevent air bubbles from passing through due to surface tension. ) is stretched, and as shown in Figure 2, the wire mesh 1
A portion directly below each hollow fiber membrane module 5 of 0 is cut out to prevent air bubbles from passing through from any place other than this cutout. The mesh size of the wire mesh 10 that prevents the passage of air bubbles is preferably 20 meshes or more, and 25 to 40 meshes is optimal for the air pressure for normal air scrubbing (about 1 to 2 kgf/cm 2 ).
第１図中、１１はろ液流出管、１２は逆洗用の
加圧空気導入管、１３はエアスクラビング空気排
出管、１４はベント、１５はドレンを示す。 In FIG. 1, 11 is a filtrate outflow pipe, 12 is a pressurized air introduction pipe for backwashing, 13 is an air scrubbing air discharge pipe, 14 is a vent, and 15 is a drain.
しかして、ろ過すべき被処理液は導入管７から
ろ過室３内の整流板６の下部に圧入され、整流板
６及び金網１０を通過して整流されて各中空糸膜
モジユール５に至り、それぞれの中空糸膜の外側
から内側へ通液されてろ過される。中空糸膜の内
側に入つたろ液は、ろ液室４内に集められ、ろ液
流出管１１から外部へ取り出される。 The liquid to be filtered is then pressurized into the lower part of the rectifier plate 6 in the filtration chamber 3 from the introduction pipe 7, passes through the rectifier plate 6 and the wire mesh 10, is rectified, and reaches each hollow fiber membrane module 5. The liquid is passed from the outside to the inside of each hollow fiber membrane and filtered. The filtrate that has entered the inside of the hollow fiber membrane is collected in the filtrate chamber 4 and taken out to the outside through the filtrate outflow pipe 11.
このようなろ過を継続するうちに、中空糸膜の
表面には被処理液中の懸濁物質が捕捉され、次第
に通液抵抗が増大してくるから、所定時間後には
ろ過を停止して逆洗を行う。即ち、逆洗用水をろ
液流出管１１からろ液室４内に導入し、加圧空気
導入管１２から加圧空気を導入して圧力を加える
と、逆洗用水は各中空糸膜の内側に流入したのち
外側へ流出し、中空糸膜表面の付着物を剥がし易
くし、その後空気によるエアスクラビングを行
う。 As this type of filtration continues, suspended substances in the liquid to be treated are captured on the surface of the hollow fiber membrane, and the resistance to liquid passage gradually increases.After a predetermined period of time, the filtration is stopped and reversed. Perform washing. That is, when backwash water is introduced into the filtrate chamber 4 from the filtrate outflow pipe 11 and pressurized air is introduced from the pressurized air introduction pipe 12 to apply pressure, the backwash water flows inside each hollow fiber membrane. After flowing into the membrane, it flows out to the outside to make it easier to remove the deposits on the surface of the hollow fiber membrane, and then perform air scrubbing with air.
エアスクラビングは、空気導入管８から空気圧
１〜２Kgｆ／cm2程度の空気を導入し、空気吹出し
管９から水中に吹き出すと、気泡は上昇するが表
面張力の働きによつて金網１０の部分では気泡の
通過が阻止され、金網１０の下側に空気層が形成
され、金網１０を切り欠いた部分、即ち各中空糸
膜モジユール５の真下近傍からのみ気泡が通り抜
け、中空糸膜と効果的に接触し、中空糸膜を振動
させて表面の付着物を剥離する。このとき、気泡
は中空糸膜モジユール５の真下近傍からのみ上昇
し、他の部分からは阻止されるので、使用する空
気量は少なくとも効果的なエアスクラビングが行
われ、その後エアスクラビング空気排出管１３か
ら排出される。 Air scrubbing involves introducing air at a pressure of about 1 to 2 Kgf/cm 2 from the air introduction pipe 8 and blowing it out into the water from the air blowing pipe 9. Although air bubbles rise, they do not reach the wire mesh 10 due to surface tension. Passage of air bubbles is blocked, an air layer is formed under the wire mesh 10, and the air bubbles pass only from the cutout portion of the wire mesh 10, that is, directly below each hollow fiber membrane module 5, and effectively connect the hollow fiber membranes. The hollow fiber membrane is vibrated to remove the deposits on the surface. At this time, the air bubbles rise only from the vicinity directly below the hollow fiber membrane module 5 and are blocked from other parts, so the amount of air used is at least as effective as air scrubbing, and then the air scrubbing air discharge pipe 13 is discharged from.
このようなエアスクラビングを含めた逆洗操作
終了後は、ろ過室３内の水はドレン１５から抜き
出され、剥離された付着物も金網１０の切欠部な
どから水と共に流れ出る。 After the backwashing operation including air scrubbing is completed, the water in the filtration chamber 3 is drained from the drain 15, and the detached deposits flow out together with the water from the cutout of the wire mesh 10.
次に、他の本発明の実施例を説明する。 Next, other embodiments of the present invention will be described.
この主要部は前述した第１図及び第２図示例と
変わるところはないが、逆洗（エアスクラビング
を含む）時に中空糸膜から剥離された付着物中の
大きな固形不純物が金網１０上に残留することが
あり、これを排出するために、第３図に示すよう
に、中空糸膜モジユール５の真下近傍以外の適当
個所に、金網１０の上面に上端が開口し下端がス
クラビング空気が金網１０下面につくる空気層よ
り下方もしくは空気吹出し管９の空気吹出し口よ
り下方まで延長した固形物流出管１６を配設した
ものである。 This main part is the same as the examples shown in FIGS. 1 and 2 described above, but large solid impurities in the deposits peeled off from the hollow fiber membrane during backwashing (including air scrubbing) remain on the wire mesh 10. In order to discharge this air, as shown in FIG. A solid matter outflow pipe 16 is provided that extends below the air layer formed on the lower surface or below the air outlet of the air blowout pipe 9.
したがつて、中空糸膜表面から剥離された小さ
い固形不純物は、ろ過室３内の水をドレンする際
に金網１０をも通過して洗い流されるが、固形不
純物が比較的大きいと、金網１０上に残留する。
しかし、金網１０上に残留した固形不純物は、ド
レンの際に固形物流出管１６を経て槽１の底部に
洗い流され、槽外へ排出されることになる。 Therefore, small solid impurities peeled off from the surface of the hollow fiber membrane will also pass through the wire mesh 10 and be washed away when draining the water in the filtration chamber 3, but if the solid impurities are relatively large, they will be washed away on the wire mesh 10. remain in the
However, the solid impurities remaining on the wire mesh 10 are washed away to the bottom of the tank 1 through the solid matter outflow pipe 16 during draining, and are discharged to the outside of the tank.
この固形物流出管１６の下端は、空気吹出し口
より下に位置しているから、エアスクラビング時
に気泡がこの固形物流出管１６内に流入すること
はない。 Since the lower end of this solid matter outflow pipe 16 is located below the air outlet, air bubbles will not flow into this solid matter outflow pipe 16 during air scrubbing.
なお、前述した何れの実施例においても、槽１
と壁と整流板６との間に隙間があると、この隙間
から気泡が流出してそのまま上昇し、エアスクラ
ビング効果が低下する。これを防ぐためには、第
４図に示すように、整流板６の外周と槽壁に近い
中空糸膜モジユール５′との間の部分で、整流板
６の下面に気泡流出防止用のスカート１７を垂設
し、気泡の流出を防止するようにするのが好まし
く、エアスクラビング効果の低下が防止される。 In addition, in any of the embodiments described above, the tank 1
If there is a gap between the wall and the baffle plate 6, air bubbles will flow out from this gap and rise as it is, reducing the air scrubbing effect. In order to prevent this, as shown in FIG. 4, a skirt 17 for preventing air bubbles from flowing out is installed on the lower surface of the current plate 6 between the outer periphery of the current plate 6 and the hollow fiber membrane module 5' near the tank wall. It is preferable that the air scrubber be installed vertically to prevent air bubbles from flowing out, thereby preventing deterioration of the air scrubbing effect.
以上説明したように、本発明によれば、気泡を
通さない網状体を、その一部を切欠いて整流板に
張設しただけの極めて簡単な構造によつて、エア
スクラビング時に中空糸膜モジユールの真下近傍
にのみ気泡を集中して導くようにしたものである
から、少ない空気量で効果的なエアスクラビング
を行うことができ、空気吹出し部の構造も単純化
されて据付も容易となり、また、第二番目の発明
のように、さらに固形物流出管をも配備すれば、
上記効果に加えて、剥離されて途中に残留された
固形不純物の排出も円滑に行うことができるので
ある。
As explained above, according to the present invention, the hollow fiber membrane module can be easily removed during air scrubbing by using an extremely simple structure in which a part of the mesh that does not allow air bubbles to pass is cut out and stretched over the current plate. Since the air bubbles are concentrated and guided only in the vicinity directly below, effective air scrubbing can be performed with a small amount of air, and the structure of the air blowing part is simplified, making installation easier. If a solid matter outflow pipe is also provided as in the second invention,
In addition to the above effects, solid impurities remaining during peeling can also be smoothly discharged.
図面は本発明の実施例を示し、第１図は全体の
概略模式図、第２図は槽内の一部を示す断面説明
図、第３図は槽内の一部の他の例を示す断面説明
図、第４図は本発明の一実施態様を示す槽内の一
部の断面説明図である。
１…槽、２…仕切板、３…ろ過室、４…ろ液
室、５，５′…中空糸膜モジユール、６…整流板、
７…導入管、８…空気導入管、９…空気吹出し
管、１０…金網、１１…ろ液流出管、１２…加圧
空気導入管、１３…エアスクラビング空気排出
管、１４…ベント、１５…ドレン、１６…固形物
流出管、１７…スカート。
The drawings show an embodiment of the present invention, and FIG. 1 is a schematic diagram of the whole, FIG. 2 is a cross-sectional explanatory diagram showing a part of the inside of the tank, and FIG. 3 shows another example of a part of the inside of the tank. FIG. 4 is a cross-sectional explanatory view of a part of the inside of the tank showing one embodiment of the present invention. 1...tank, 2...partition plate, 3...filtration chamber, 4...filtrate chamber, 5,5'...hollow fiber membrane module, 6...straightening plate,
7... Introduction pipe, 8... Air introduction pipe, 9... Air blowing pipe, 10... Wire mesh, 11... Filtrate outflow pipe, 12... Pressurized air introduction pipe, 13... Air scrubbing air discharge pipe, 14... Vent, 15... Drain, 16...solids outflow pipe, 17...skirt.
Claims (1)
空糸膜からなる中空糸膜モジユールを配設し、該
中空糸膜モジユールの下部に整流板を設け、該整
流板の下部に被処理液及び空気を導入するように
した中空糸膜ろ過装置において、前記整流板の前
記中空糸膜モジユールの真下近傍の部分以外に、
液を通すが気泡を通さない網状体を張設したこと
を特徴とする中空糸膜ろ過装置。 ２ 前記網状体の網目が20メツシユ以上、好まし
くは25〜40メツシユである特許請求の範囲第１項
記載の中空糸膜ろ過装置。 ３ 前記整流板が、該整流板の外周と槽壁に近い
前記中空糸膜モジユールとの間に気泡流出防止用
のスカートを垂設したものである特許請求の範囲
第１項又は第２項記載の中空糸膜ろ過装置。 ４ 槽内に、外側から内側へ通液してろ過する中
空糸膜からなる中空糸膜モジユールを配設し、該
中空糸膜モジユールの下部に整流板を設け、該整
流板の下部に被処理液及び空気を導入するように
した中空糸膜ろ過装置において、前記整流板の前
記中空糸膜モジユールの真下近傍の部分以外に液
を通すが気泡を通さない網状体を張設し、さらに
槽内の空気吹出し部の真上以外で該網状体の上面
に上端が開口し下端が空気導入時に該網状体下部
にできる空気層より下方もしくは槽内の空気吹出
し部より下方まで延長した固形物流出管を配設し
たことを特徴とする中空糸膜ろ過装置。 ５ 前記網状体の網目が20メツシユ以上、好まし
くは25〜40メツシユである特許請求の範囲第４項
記載の中空糸膜ろ過装置。 ６ 前記整流板が、該整流板の外周と槽壁に近い
前記中空糸膜モジユールとの間に気泡流出防止用
のスカートを垂設したものである特許請求の範囲
第４項又は第５項記載の中空糸膜ろ過装置。[Scope of Claims] 1 A hollow fiber membrane module consisting of a hollow fiber membrane that passes liquid from the outside to the inside for filtration is disposed in a tank, a rectifying plate is provided at the bottom of the hollow fiber membrane module, and a rectifying plate is provided at the bottom of the hollow fiber membrane module. In a hollow fiber membrane filtration device in which a liquid to be treated and air are introduced into a lower part of the plate, in addition to a portion of the rectifying plate near directly below the hollow fiber membrane module,
A hollow fiber membrane filtration device characterized by being provided with a mesh that allows liquid to pass through but does not allow air bubbles to pass through. 2. The hollow fiber membrane filtration device according to claim 1, wherein the mesh size of the net-like body is 20 meshes or more, preferably 25 to 40 meshes. 3. Claim 1 or 2, wherein the current plate has a skirt for preventing air bubbles flowing out between the outer periphery of the current plate and the hollow fiber membrane module near the tank wall. Hollow fiber membrane filtration equipment. 4 A hollow fiber membrane module consisting of a hollow fiber membrane that passes liquid from the outside to the inside for filtration is disposed in the tank, a rectifying plate is provided at the bottom of the hollow fiber membrane module, and a rectifying plate is provided at the bottom of the rectifying plate. In a hollow fiber membrane filtration device that introduces liquid and air, a net-like body that allows liquid to pass through but does not allow air bubbles to pass through is provided in a portion of the current plate other than the area directly below the hollow fiber membrane module, and further A solids outflow pipe whose upper end opens on the upper surface of the net at a location other than directly above the air outlet and whose lower end extends below the air layer formed at the bottom of the net when air is introduced or below the air outlet in the tank. A hollow fiber membrane filtration device characterized by being provided with. 5. The hollow fiber membrane filtration device according to claim 4, wherein the mesh size of the net-like body is 20 meshes or more, preferably 25 to 40 meshes. 6. Claim 4 or 5, wherein the current plate has a skirt for preventing air bubbles flowing out between the outer periphery of the current plate and the hollow fiber membrane module near the tank wall. Hollow fiber membrane filtration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25468785A JPS62114609A (en) | 1985-11-15 | 1985-11-15 | Hollow yarn membrane filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25468785A JPS62114609A (en) | 1985-11-15 | 1985-11-15 | Hollow yarn membrane filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62114609A JPS62114609A (en) | 1987-05-26 |
| JPS647805B2 true JPS647805B2 (en) | 1989-02-10 |
Family
ID=17268469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25468785A Granted JPS62114609A (en) | 1985-11-15 | 1985-11-15 | Hollow yarn membrane filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62114609A (en) |
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|---|---|---|---|---|
| FR2737202B1 (en) * | 1995-07-25 | 1997-10-17 | Omnium Traitement Valorisa | PLANT FOR BIOLOGICAL TREATMENT OF WATER FOR POTABILIZATION |
| DE1252921T1 (en) | 1995-08-11 | 2003-11-27 | Zenon Environmental Inc., Oakville | Device for permeate removal from a liquid substrate with several components |
| US7087173B2 (en) | 1995-08-11 | 2006-08-08 | Zenon Environmental Inc. | Inverted cavity aerator for membrane module |
| CA2275146C (en) * | 1996-12-20 | 2006-10-31 | Usf Filtration And Separations Group, Inc. | Scouring method |
| TWI222895B (en) * | 1998-09-25 | 2004-11-01 | Usf Filtration & Separations | Apparatus and method for cleaning membrane filtration modules |
| US6156200A (en) * | 1998-12-08 | 2000-12-05 | Usf Filtration & Separations Group, Inc. | Gas-scrubbed hollow fiber membrane module |
| AU2003903507A0 (en) | 2003-07-08 | 2003-07-24 | U. S. Filter Wastewater Group, Inc. | Membrane post-treatment |
| CA2535360C (en) | 2003-08-29 | 2013-02-12 | U.S. Filter Wastewater Group, Inc. | Backwash |
| CN100548452C (en) | 2004-09-15 | 2009-10-14 | 西门子水技术公司 | The method of incrustation in a kind of membrane filtration system and the control membrane filtration system |
| KR20080005993A (en) | 2005-04-29 | 2008-01-15 | 지멘스 워터 테크놀로지스 코포레이션 | Chemical clean for membrane filter |
| CA2618107A1 (en) | 2005-08-22 | 2007-03-01 | Siemens Water Technologies Corp. | An assembly for water filtration using a tube manifold to minimise backwash |
| US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| CA2682707C (en) | 2007-04-02 | 2014-07-15 | Siemens Water Technologies Corp. | Improved infiltration/inflow control for membrane bioreactor |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| EP2152390B1 (en) | 2007-05-29 | 2012-05-23 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
| KR101614520B1 (en) | 2008-07-24 | 2016-04-21 | 에보쿠아 워터 테크놀로지스 엘엘씨 | Frame system for membrane filtration modules |
| AU2010257526A1 (en) | 2009-06-11 | 2012-01-12 | Siemens Industry, Inc | Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane |
| CN102869432B (en) | 2010-04-30 | 2016-02-03 | 伊沃夸水处理技术有限责任公司 | Fluid flow distribution device |
| AU2011305377B2 (en) | 2010-09-24 | 2014-11-20 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
| JP2014528354A (en) | 2011-09-30 | 2014-10-27 | エヴォクア ウォーター テクノロジーズ エルエルシーＥｖｏｑｕａ Ｗａｔｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓｌｌｃ | Isolation valve |
| US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
| AU2013280452B2 (en) | 2012-06-28 | 2017-07-20 | Evoqua Water Technologies Llc | A potting method |
| WO2014043315A1 (en) | 2012-09-14 | 2014-03-20 | Evoqua Water Technologies Llc | A polymer blend for membranes |
| AU2013324056B2 (en) | 2012-09-26 | 2017-11-16 | Evoqua Water Technologies Llc | Membrane securement device |
| AU2013231145B2 (en) | 2012-09-26 | 2017-08-17 | Evoqua Water Technologies Llc | Membrane potting methods |
| AU2013323934A1 (en) | 2012-09-27 | 2015-02-26 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
| US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
| CN107847869B (en) | 2015-07-14 | 2021-09-10 | 罗门哈斯电子材料新加坡私人有限公司 | Aeration device for a filtration system |
-
1985
- 1985-11-15 JP JP25468785A patent/JPS62114609A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62114609A (en) | 1987-05-26 |
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