JP3255821B2 - Immersion type membrane cartridge - Google Patents
Immersion type membrane cartridgeInfo
- Publication number
- JP3255821B2 JP3255821B2 JP08890695A JP8890695A JP3255821B2 JP 3255821 B2 JP3255821 B2 JP 3255821B2 JP 08890695 A JP08890695 A JP 08890695A JP 8890695 A JP8890695 A JP 8890695A JP 3255821 B2 JP3255821 B2 JP 3255821B2
- Authority
- JP
- Japan
- Prior art keywords
- filter plate
- membrane cartridge
- type membrane
- cleaning
- immersion type
- 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 - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、し尿処理施設の曝気槽
等において活性汚泥等の固液分離用途に用いる浸漬型膜
カートリッジに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submerged membrane cartridge used for solid-liquid separation of activated sludge or the like in an aeration tank of a human waste treatment facility.
【０００２】[0002]
【従来の技術】従来、し尿処理施設等においては、被処
理液中の活性汚泥や凝集汚泥を分離するために処理槽内
に浸漬型膜分離装置を設けている。浸漬型膜分離装置は
上下が開口した箱状のケーシングの内部に平板状をなす
複数の浸漬型膜カートリッジを上下方向に沿って平行に
設け、浸漬型膜カートリッジの下方に槽内の被処理液に
曝気空気を供給する散気装置を設けている。2. Description of the Related Art Conventionally, in a human waste treatment facility or the like, an immersion type membrane separation device is provided in a treatment tank for separating activated sludge and coagulated sludge in a liquid to be treated. The immersion type membrane separation device is provided with a plurality of flat immersion type membrane cartridges arranged in parallel in the vertical direction inside a box-shaped casing opened at the top and bottom, and the liquid to be treated in the tank is provided below the immersion type membrane cartridge. There is provided an air diffuser for supplying aerated air.
【０００３】浸漬型膜カートリッジＣは、図３〜図４に
示すように、濾板１の表面を覆って限外濾過膜等の濾過
膜２を配置したもので、濾過膜２の背面側において濾板
１の表面に複数条のスリット３を設けており、濾板１の
上側部には表裏に貫通する集液部４が各スリット３に連
通して設けてあり、スリット３および集液部４によって
濾過膜２の背面側に透過液流路を形成している。濾板１
の上縁部には吸引ノズル５が設けてあり、吸引ノズル５
は集液部４に連通している。As shown in FIGS. 3 and 4, the immersion type membrane cartridge C is provided with a filtration membrane 2 such as an ultrafiltration membrane covering the surface of a filter plate 1. A plurality of slits 3 are provided on the surface of the filter plate 1, and a liquid collecting part 4 penetrating from front to back is provided on an upper part of the filter plate 1 so as to communicate with each slit 3. 4 forms a permeate flow path on the back side of the filtration membrane 2. Filter plate 1
A suction nozzle 5 is provided at an upper edge portion of the suction nozzle 5.
Communicates with the liquid collecting section 4.
【０００４】濾過運転時には、吸引手段（図示せず）に
より、各浸漬型膜カートリッジＣの吸引ノズル５を通し
て透過液流路をなす集液部４およびスリット３に吸引負
圧を与えるか、もしくは浸漬型膜カートリッジＣの濾過
膜２の膜面に槽内の自然水頭を駆動圧力として作用させ
ることによって、被処理液中の活性汚泥などの固形分を
浸漬型膜カートリッジＣの濾過膜２で捕捉し、濾過膜２
を透過して透過液流路内に流入した透過液を処理液とし
て吸引ノズル５から取り出している。At the time of the filtration operation, a suction means (not shown) applies suction negative pressure to the liquid collecting part 4 and the slit 3 forming the permeate flow path through the suction nozzle 5 of each immersion type membrane cartridge C, or immerses the liquid. Solids such as activated sludge in the liquid to be treated are captured by the filtration membrane 2 of the immersion-type membrane cartridge C by applying the natural head in the tank as a driving pressure to the membrane surface of the filtration membrane 2 of the mold membrane cartridge C. , Filtration membrane 2
The permeate that has passed through and flowed into the permeate flow path is taken out of the suction nozzle 5 as a processing liquid.
【０００５】[0005]
【発明が解決しようとする課題】上記したような浸漬型
膜分離装置においては、曝気空気によるセルフクリーニ
ング機能を有している。つまり、散気装置を通じて供給
する曝気空気の気泡、および気泡のエアリフト作用によ
り生起される被処理液の上向流が濾過膜の膜面に作用
し、気泡が断続性によってケーキ層を抉る作用を発揮す
るとともに、上向流が掃流として膜面上を流れることに
より、浸漬型膜カートリッジＣの膜面を洗浄する。しか
し、急激な濃度変化等による種々の理由によって、濾過
膜の微少孔が異物等で閉塞し、処理能力が低下するの
で、定期的に浸漬型膜カートリッジＣの薬品洗浄が必要
となる。The above-mentioned immersion type membrane separation apparatus has a self-cleaning function using aerated air. In other words, the bubbles of the aerated air supplied through the air diffuser, and the upward flow of the liquid to be treated, which is generated by the air-lifting action of the bubbles, acts on the membrane surface of the filtration membrane, and the bubbles cut off the cake layer by intermittentness. In addition, the upward flow flows on the membrane surface as a sweeping flow, thereby cleaning the membrane surface of the immersion-type membrane cartridge C. However, for various reasons such as a rapid change in concentration, the micropores of the filtration membrane are blocked by foreign matter and the like, and the processing capacity is reduced. Therefore, chemical cleaning of the immersion type membrane cartridge C is required periodically.
【０００６】浸漬型膜カートリッジＣの洗浄に際して
は、槽外に取り出して薬品洗浄槽に浸漬して洗う方法が
一般的であるが、この方法では手数を要して多大の労力
を必要とする。このため、浸漬型膜カートリッジＣを槽
内に浸漬した状態のままに洗浄することが望ましい。し
かし、薬液洗浄においては、浸漬型膜カートリッジＣの
内部に注入する洗浄薬液が濾過膜の膜面に沿って均等に
充填されるか、否かによって、薬液洗浄効果が大きく相
違し、しかも、洗浄効果は濾過運転を再開しないと確認
することができない。When the immersion type membrane cartridge C is washed, it is common to take it out of the tank and immerse it in a chemical washing tank for washing. However, this method requires a lot of labor and requires a great deal of labor. For this reason, it is desirable to perform cleaning while the immersion type membrane cartridge C is immersed in the tank. However, in chemical cleaning, the chemical cleaning effect greatly differs depending on whether or not the cleaning chemical injected into the immersion type membrane cartridge C is uniformly filled along the membrane surface of the filtration membrane. The effect cannot be confirmed unless the filtration operation is restarted.
【０００７】本発明は上記した課題を解決するもので、
洗浄薬液を濾過膜の膜面に沿って容易に均等に充填する
ことができる浸漬型膜カートリッジを提供することを目
的とする。The present invention solves the above-mentioned problems, and
It is an object of the present invention to provide an immersion-type membrane cartridge that can easily and uniformly fill a cleaning solution along a membrane surface of a filtration membrane.
【０００８】[0008]
【課題を解決するための手段】上記した課題を解決する
ために、本発明の浸漬型膜カートリッジは、濾板の表面
を覆って濾過膜を設け、濾板の上側部に表裏に貫通して
集水部を設け、一端が集水部に連通する吸引ノズルを濾
板の周縁に設け、濾板の表面に開口する複数のスリット
を一端で集水部に連通して濾板の上側部から下側部にわ
たって並列に設け、隣接するスリットの間隔を濾板の上
下方向の長さの１／５〜１／２０としたものである。In order to solve the above-mentioned problems, a immersion type membrane cartridge of the present invention is provided with a filtration membrane covering the surface of a filter plate, and penetrating the filter plate at the upper part from front to back. A water collecting part is provided, and a suction nozzle having one end communicating with the water collecting part is provided on the periphery of the filter plate, and a plurality of slits opening on the surface of the filter plate are connected with the water collecting part at one end from the upper part of the filter plate. The filter is provided in parallel over the lower side, and the interval between adjacent slits is set to 1/5 to 1/20 of the vertical length of the filter plate.
【０００９】また、濾板の表面に開口する複数のバイパ
ススリットを隣接するスリット間を連通して設けたもの
である。Further, a plurality of bypass slits opened on the surface of the filter plate are provided so as to communicate between adjacent slits.
【００１０】[0010]
【作用】上記した構成により、活性汚泥処理槽において
浸漬型膜カートリッジを固液分離に使用する場合には、
スリットおよび集水部からなる浸漬型膜カートリッジの
透過液流路に吸引ノズルを通して吸引負圧を作用させ、
濾過膜によって活性汚泥を固液分離する。According to the above construction, when an immersion type membrane cartridge is used for solid-liquid separation in an activated sludge treatment tank,
Applying a suction negative pressure through a suction nozzle to the permeate flow path of the immersion type membrane cartridge comprising a slit and a water collecting section,
The activated sludge is solid-liquid separated by a filtration membrane.
【００１１】浸漬型膜カートリッジの薬液洗浄を行う場
合には、浸漬型膜カートリッジを槽内に浸漬した状態に
おいて吸引ノズルを通して洗浄薬液を注入し、浸漬型膜
カートリッジの透過液流路に洗浄薬液を満たす。洗浄薬
液は集水部から各スリットに流入し、各スリットに沿っ
て比重差により下方に沈降するとともに、濾板の表面領
域における密度差により生起する密度流となって移動す
る。スリットの最下部に達した段階で洗浄薬液は水平方
向に沿って密度流となって拡がる。In the case where the chemical cleaning of the immersion membrane cartridge is performed, the cleaning chemical is injected through a suction nozzle in a state where the immersion membrane cartridge is immersed in the tank, and the cleaning chemical is supplied to the permeate flow path of the immersion membrane cartridge. Fulfill. The cleaning solution flows into each slit from the water collecting portion, and sinks downward along the slit due to a specific gravity difference, and moves as a density flow caused by a density difference in a surface region of the filter plate. When reaching the lowermost portion of the slit, the cleaning chemical liquid spreads as a density flow along the horizontal direction.
【００１２】このとき、洗浄薬液の垂直方向への移動
は、比重差と密度流の双方に起因するので、その移動速
度Ｖ1 は速くなり、一方で洗浄薬液の水平方向への移動
は、密度流のみに起因するので、その速度Ｖ2 は遅くな
る。この水平方向への移動速度Ｖ2 と垂直方向への移動
速度Ｖ1 との比Ｖ2 ／Ｖ1 は大体１／１０であるので、
隣接するスリットの間隔を濾板の上下方向の長さの１／
５〜１／２０とすることにより、洗浄薬液を短時間に均
一に拡散させることができるとともに、洗浄薬液の使用
量も低減することができる。At this time, since the vertical movement of the cleaning chemical is caused by both the specific gravity difference and the density flow, the moving speed V 1 is increased, while the horizontal movement of the cleaning chemical is caused by the density. since only due to flow, the velocity V 2 is slow. Since the ratio V 2 / V 1 of the moving speed V 2 to this horizontal direction and the moving velocity V 1 of the vertical direction is 1/10 roughly,
Set the distance between adjacent slits to 1 /
By setting the ratio to 5 to 1/20, the cleaning liquid can be uniformly diffused in a short time, and the amount of the cleaning liquid used can be reduced.
【００１３】さらに、濾板の表面に開口する複数のバイ
パススリットを隣接するスリット間を連通して設けるこ
とにより、洗浄薬液の拡散性を高めることができる。Further, by providing a plurality of bypass slits that open on the surface of the filter plate so as to communicate between adjacent slits, the diffusivity of the cleaning agent liquid can be increased.
【００１４】[0014]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１において、浸漬型膜カートリッジ１１は、
し尿処理施設等において被処理液中の活性汚泥や凝集汚
泥を分離する浸漬型膜分離装置に使用するもので、複数
の浸漬型膜カートリッジ１１を上下方向に沿って平行に
配置し、浸漬型膜カートリッジ１１の下方に配置した散
気装置（図示せず）から空気を曝気しながら濾過を行う
ものである。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the immersion type membrane cartridge 11 is
It is used in an immersion type membrane separation device for separating activated sludge and coagulated sludge in a liquid to be treated in a night soil treatment facility or the like. A plurality of immersion type membrane cartridges 11 are arranged in parallel along the vertical direction, and Filtration is performed while aerating air from a diffuser (not shown) disposed below the cartridge 11.
【００１５】浸漬型膜カートリッジ１１は濾板１２の表
裏の表面を限外濾過膜等の濾過膜（図示せず）で覆った
ものである。濾板１２は上側部に表裏に貫通して集水部
１３が設けてあり、濾板１２の上部周縁には吸引ノズル
１４が一端で集水部１３に連通して設けてある。濾板１
２には複数のスリット１５が濾板１２の上側部から下側
部にわたって並列に設けてあり、各スリット１５は濾板
１２の表面に開口して一端で集水部１３に連通してい
る。スリット１５は隣接するスリット１５との間隔が濾
板１２の上下方向の長さの１／５〜１／２０をなすよう
に設けてある。The immersion-type membrane cartridge 11 is one in which the front and back surfaces of the filter plate 12 are covered with a filtration membrane (not shown) such as an ultrafiltration membrane. A water collecting portion 13 is provided on the upper side of the filter plate 12 so as to penetrate from front to back, and a suction nozzle 14 is provided at an upper peripheral edge of the filter plate 12 so as to communicate with the water collecting portion 13 at one end. Filter plate 1
2, a plurality of slits 15 are provided in parallel from the upper part to the lower part of the filter plate 12, and each slit 15 is opened on the surface of the filter plate 12 and communicates with the water collecting part 13 at one end. The slits 15 are provided such that the interval between the adjacent slits 15 is 1/5 to 1/20 of the vertical length of the filter plate 12.
【００１６】本実施例においては、濾板１２は上下方向
の長さが１００cmで、幅が５０cmであり、約１cm幅のス
リット１５が約４cmの間隔で形成してある。以下、上記
した構成における作用を説明する。活性汚泥処理槽等に
おいて浸漬型膜カートリッジ１１を固液分離に使用する
場合には、スリット１５および集水部１３からなる浸漬
型膜カートリッジ１１の透過液流路に吸引ノズル１４を
通して吸引負圧を作用させ、濾過膜によって活性汚泥を
固液分離する。In this embodiment, the filter plate 12 has a vertical length of 100 cm, a width of 50 cm, and slits 15 having a width of about 1 cm are formed at intervals of about 4 cm. Hereinafter, the operation of the above configuration will be described. When the immersion type membrane cartridge 11 is used for solid-liquid separation in an activated sludge treatment tank or the like, a suction negative pressure is applied to the permeate flow path of the immersion type membrane cartridge 11 including the slit 15 and the water collecting part 13 through the suction nozzle 14. The activated sludge is solid-liquid separated by a filtration membrane.
【００１７】浸漬型膜カートリッジ１１を薬液洗浄する
場合には、浸漬型膜カートリッジ１１を槽内に浸漬した
状態において吸引ノズル１４を通して次亜塩素酸ソー
ダ、塩酸、蓚酸等の洗浄薬液を注入し、浸漬型膜カート
リッジ１１の透過液流路に洗浄薬液を満たす。When the immersion-type membrane cartridge 11 is to be washed with a chemical solution, a cleaning agent such as sodium hypochlorite, hydrochloric acid, oxalic acid or the like is injected through the suction nozzle 14 while the immersion-type membrane cartridge 11 is immersed in the tank. The permeate flow path of the immersion type membrane cartridge 11 is filled with a cleaning solution.
【００１８】洗浄薬液は集水部１３から各スリット１５
に流入し、各スリット１５に沿って比重差により下方に
沈降するとともに、濾板１２の表面領域における被処理
液との密度差により生起する密度流となって移動する。
スリット１５の最下部に達した段階で洗浄薬液は水平方
向に沿って密度流となって拡がる。洗浄薬液の垂直方向
への移動は、比重差と密度流の双方に起因するので、そ
の移動速度Ｖ1 は速くなり、一方で洗浄薬液の水平方向
への移動は、密度流のみに起因するので、その速度Ｖ2
は遅くなる。The cleaning solution is supplied from the water collecting section 13 to each slit 15
And settles down along the respective slits 15 due to a difference in specific gravity, and moves as a density flow generated by a density difference between the surface region of the filter plate 12 and the liquid to be treated.
When the cleaning liquid reaches the lowermost portion of the slit 15, the cleaning liquid spreads as a density flow along the horizontal direction. Since the vertical movement of the cleaning chemical is caused by both the specific gravity difference and the density flow, the moving speed V 1 is increased, while the horizontal movement of the cleaning chemical is caused only by the density flow. , Its speed V 2
Slows down.
【００１９】密度流および比重差は使用する洗浄薬液の
薬品の種類や濃度によって決まり、薬品の使用濃度は、
次亜塩素酸ソーダで０．５〜２％（好ましくは１％）、
塩酸で１〜５％（好ましくは３％）、蓚酸で０．２〜２
％（好ましくは０．５％）である。水平方向の拡散速度
は薬品の種類や濃度で異なるが、上述の濃度の範囲にお
いては、大体１分間に２０〜３０cmであり、垂直方向の
拡散速度は１分間で２００〜３００cmであった。このた
め上下方向への洗浄薬液の拡散時間は３０秒であり、水
平方向への拡散時間は８秒／スリット間である。The density flow and the specific gravity difference are determined by the type and concentration of the cleaning chemical used, and the concentration of the chemical used is as follows:
0.5-2% (preferably 1%) in sodium hypochlorite,
1-5% (preferably 3%) with hydrochloric acid and 0.2-2% with oxalic acid
% (Preferably 0.5%). The diffusion rate in the horizontal direction differs depending on the type and concentration of the drug, but in the above-mentioned concentration range, the diffusion rate was about 20 to 30 cm per minute, and the diffusion rate in the vertical direction was 200 to 300 cm in 1 minute. Therefore, the diffusion time of the cleaning solution in the vertical direction is 30 seconds, and the diffusion time in the horizontal direction is 8 seconds / slit.
【００２０】したがって、水平方向への移動速度Ｖ2 と
垂直方向への移動速度Ｖ1 との比Ｖ 2 ／Ｖ1 は大体１／
１０であるので、隣接するスリット１５の間隔を濾板１
２の上下方向の長さの１／５〜１／２０とすることによ
り、洗浄薬液を短時間に均一に拡散させることができる
とともに、洗浄薬液の使用量の低減を図ることができ
る。因に、使用する薬液量が従来に比べて１／２と少な
く、従来においては薬液を注入後に、薬洗効果を出すた
めに１時間浸漬していたが、本実施例によれば、１／３
に短縮できた。Therefore, the moving speed V in the horizontal directionTwo When
Moving speed V in vertical direction1 And the ratio V Two / V1 Is roughly 1 /
10, the distance between the adjacent slits 15 is
2 to 1/5 to 1/20 of the vertical length
Cleaning chemicals can be spread evenly in a short time
At the same time, the amount of cleaning chemical used can be reduced.
You. However, the amount of the chemical solution used is reduced to half that of the past.
Conventionally, after injecting a chemical solution,
Immersion for one hour, but according to this example, 1/3
Could be shortened to
【００２１】図２は本発明の他の実施例を示すものであ
り、先の実施例と同様の作用を行う部材については同一
番号を付して説明を省略する。図２において、濾板１２
には濾板１２の表面に開口する複数のバイパススリット
２１が隣接するスリット１５，１５間を連通して設けて
あり、バイパススリット２１はスリット１５に対して斜
めに傾斜している。FIG. 2 shows another embodiment of the present invention, in which members having the same functions as those in the previous embodiment are denoted by the same reference numerals and description thereof is omitted. In FIG.
Are provided with a plurality of bypass slits 21 opening on the surface of the filter plate 12 so as to communicate between adjacent slits 15, 15, and the bypass slits 21 are obliquely inclined with respect to the slits 15.
【００２２】この構成によれば、洗浄薬液がスリット１
５からバイパススリット２１に流入し、バイパススリッ
ト２１に沿って比重差および密度流により流れることに
なり、水平方向における洗浄薬液の拡散を促進すること
ができる。According to this configuration, the cleaning liquid is supplied to the slit 1.
5 flows into the bypass slit 21 and flows along the bypass slit 21 due to the difference in specific gravity and the density flow, so that the diffusion of the cleaning solution in the horizontal direction can be promoted.
【００２３】[0023]
【発明の効果】以上に述べたように本発明によれば、隣
接するスリットの間隔を濾板の上下方向の長さの１／５
〜１／２０とすることにより、洗浄薬液が濾板の垂直方
向への広がりに要する拡散時間と水平方向への広がりに
要する拡散時間を同等にすることができ、洗浄薬液を短
時間に均一に拡散させることができるとともに、洗浄薬
液の使用量も低減することができる。濾板の表面に開口
する複数のバイパススリットを隣接するスリット間を連
通して設けることにより、洗浄薬液の拡散性をさらに高
めることができる。As described above, according to the present invention, the interval between adjacent slits is set to 1/5 of the vertical length of the filter plate.
By setting it to 1/20, the diffusion time required for the cleaning liquid to spread in the vertical direction of the filter plate can be made equal to the diffusion time required for the diffusion in the horizontal direction, and the cleaning liquid can be uniformly dispersed in a short time. In addition to being able to diffuse, the amount of the cleaning solution used can be reduced. By providing a plurality of bypass slits that open on the surface of the filter plate so as to communicate between adjacent slits, the diffusivity of the cleaning solution can be further increased.
【図１】本発明の一実施例を示す浸漬型膜カートリッジ
の濾板の正面図である。FIG. 1 is a front view of a filter plate of a submerged membrane cartridge according to an embodiment of the present invention.
【図２】本発明の他の実施例を示す浸漬型膜カートリッ
ジの濾板の正面図である。FIG. 2 is a front view of a filter plate of a submerged membrane cartridge according to another embodiment of the present invention.
【図３】従来の浸漬型膜カートリッジの濾板の正面図で
ある。FIG. 3 is a front view of a filter plate of a conventional immersion type membrane cartridge.
【図４】同浸漬型膜カートリッジの側面図である。FIG. 4 is a side view of the immersion type membrane cartridge.
１１ 浸漬型膜カートリッジ １２ 濾板 １３ 集水部 １４ 吸引ノズル １５ スリット DESCRIPTION OF SYMBOLS 11 Immersion type | mold membrane cartridge 12 Filter plate 13 Water collecting part 14 Suction nozzle 15 Slit
フロントページの続き (72)発明者 和泉 清司 大阪府大阪市浪速区敷津東一丁目２番47 号 株式会社クボタ内 (72)発明者 谷田 昌大 大阪府大阪市浪速区敷津東一丁目２番47 号 株式会社クボタ内 (72)発明者 塗師 雅治 大阪府大阪市浪速区敷津東一丁目２番47 号 株式会社クボタ内 (72)発明者 師 正史 大阪府大阪市浪速区敷津東一丁目２番47 号 株式会社クボタ内 (72)発明者 添田 祐二 大阪府大阪市浪速区敷津東一丁目２番47 号 株式会社クボタ内 (56)参考文献 特開 平６−178920（ＪＰ，Ａ) 特開 平６−39250（ＪＰ，Ａ) 特開 平７−31853（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 63/00 - 65/10 Continued on the front page (72) Inventor Seiji Izumi 2-47, Shikitsu Higashi 1-chome, Namiwa-ku, Osaka-shi, Osaka (72) Inventor Masahiro Yata 1-chome 2, Shikitsu-higashi, Naniwa-ku, Osaka, Osaka No. 47 Kubota Co., Ltd. (72) Inventor Masaharu Nishi 2-chome No. 2-47, Kubota Co., Ltd. (72) Inventor Masafumi Shikitsu Higashiichi, Naniwa-ku, Osaka, Osaka No. 2-47, Kubota Co., Ltd. (72) Yuji Soeda, Inventor 1-47, Shikitsu Higashi, Naniwa-ku, Osaka-shi, Osaka Kubota Co., Ltd. (56) References JP-A-6-178920 (JP, A JP-A-6-39250 (JP, A) JP-A-7-31853 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01D 63/00-65/10
Claims (2)
の上側部に表裏に貫通して集水部を設け、一端が集水部
に連通する吸引ノズルを濾板の周縁に設け、濾板の表面
に開口する複数のスリットを一端で集水部に連通して濾
板の上側部から下側部にわたって並列に設け、隣接する
スリットの間隔を濾板の上下方向の長さの１／５〜１／
２０としたことを特徴とする浸漬型膜カートリッジ。1. A filter membrane is provided so as to cover the surface of a filter plate, and a water collecting portion is provided on the upper side of the filter plate so as to penetrate from the front to the back. A plurality of slits opening on the surface of the filter plate are connected in parallel to the water collecting portion at one end and provided in parallel from the upper portion to the lower portion of the filter plate, and the interval between adjacent slits is set to the length of the filter plate in the vertical direction. 1/5 to 1 /
20. An immersion-type membrane cartridge, wherein the number is 20.
リットを隣接するスリット間を連通して設けたことを特
徴とする請求項１記載の浸漬型膜カートリッジ。2. The immersion type membrane cartridge according to claim 1, wherein a plurality of bypass slits opened on the surface of the filter plate are provided so as to communicate between adjacent slits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08890695A JP3255821B2 (en) | 1995-04-14 | 1995-04-14 | Immersion type membrane cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08890695A JP3255821B2 (en) | 1995-04-14 | 1995-04-14 | Immersion type membrane cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08281264A JPH08281264A (en) | 1996-10-29 |
| JP3255821B2 true JP3255821B2 (en) | 2002-02-12 |
Family
ID=13955999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08890695A Expired - Lifetime JP3255821B2 (en) | 1995-04-14 | 1995-04-14 | Immersion type membrane cartridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3255821B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100500488B1 (en) * | 2002-05-09 | 2005-07-12 | 주식회사 환경시설관리공사 | Immersion Type Flat Membrane Module |
| KR20040047329A (en) * | 2002-11-29 | 2004-06-05 | 주식회사 코레드 | Sewage treatment membrane module and membrane unit and manufacturing method |
| JP5105787B2 (en) * | 2006-07-11 | 2012-12-26 | 株式会社クボタ | Membrane cartridge |
| JP5361310B2 (en) * | 2008-09-26 | 2013-12-04 | 株式会社クボタ | Membrane cartridge |
| JP5361312B2 (en) | 2008-09-26 | 2013-12-04 | 株式会社クボタ | Membrane cartridge |
| KR101136025B1 (en) * | 2010-05-17 | 2012-04-18 | 주식회사 퓨어엔비텍 | Membrane module |
| CN109718669A (en) * | 2019-02-25 | 2019-05-07 | 威孔过滤科技（苏州）有限公司 | The filter of plate filter element and the application plate filter element |
-
1995
- 1995-04-14 JP JP08890695A patent/JP3255821B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08281264A (en) | 1996-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07185270A (en) | Immersion membrane apparatus | |
| JP3255821B2 (en) | Immersion type membrane cartridge | |
| JP3290555B2 (en) | Washing method of immersion type membrane cartridge in tank | |
| JP3290556B2 (en) | Cleaning method for immersion type membrane cartridge | |
| JP3178977B2 (en) | Cleaning method of membrane element | |
| JP3494744B2 (en) | Chemical solution cleaning method for membrane in immersion type membrane filtration device and chemical solution cleaning device | |
| JP3123407B2 (en) | Immersion type membrane separation device | |
| JPH09141066A (en) | Dipping type membrane separator | |
| JP3408613B2 (en) | Membrane separation device | |
| JP3257933B2 (en) | Chemical cleaning method for membrane cartridge | |
| JPH08290045A (en) | Method for washing of immersion type membrance cartridge | |
| JP3959758B2 (en) | Immersion membrane separator | |
| JP3333086B2 (en) | Water treatment equipment | |
| JP2001047046A (en) | Membrane separation type water treatment apparatus | |
| JPH1066843A (en) | Washing of membrane separator | |
| JPH06246264A (en) | Raw water treating device | |
| JPH07275668A (en) | Membrane separation device | |
| JPH09155166A (en) | Immersion type flat membrane separator | |
| JPH08323349A (en) | Washing method of immersing type membrane cartridge in tank | |
| JPH09299951A (en) | Dipping type plane membrane separation device | |
| JP2885981B2 (en) | Aeration tank filtration device | |
| JP3117607B2 (en) | Wastewater treatment method | |
| JPH0724832B2 (en) | Activated sludge treatment equipment | |
| JPH04110090A (en) | Activated-sludge treating device | |
| JP2970829B2 (en) | Purification equipment for garden ponds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081130 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081130 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091130 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091130 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101130 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101130 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111130 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111130 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121130 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131130 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |