JPH10156151A - Immersion type membrane separation device - Google Patents
Immersion type membrane separation deviceInfo
- Publication number
- JPH10156151A JPH10156151A JP32063096A JP32063096A JPH10156151A JP H10156151 A JPH10156151 A JP H10156151A JP 32063096 A JP32063096 A JP 32063096A JP 32063096 A JP32063096 A JP 32063096A JP H10156151 A JPH10156151 A JP H10156151A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- membrane cartridge
- cartridge
- immersion type
- separation device
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、処理槽内に設置さ
れる浸漬型膜分離装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an immersion type membrane separation device installed in a processing tank.
【０００２】[0002]
【従来の技術】従来、し尿処理や合併処理などを行う処
理装置として、たとえば図６に示したような、処理槽内
に設置する浸漬型膜分離装置が用いられている。2. Description of the Related Art Conventionally, a immersion type membrane separation apparatus installed in a processing tank as shown in FIG. 6 has been used as a processing apparatus for performing human waste processing, merging processing, and the like.
【０００３】浸漬型膜分離装置１は、上下が開口した箱
枠状の膜ケース２の内部に平板状の膜カートリッジ３を
一定間隔で配列し、膜ケース２の下方に配置した箱枠状
の散気ケース４の内部に、槽外のブロワ５などの空気供
給源に連通する散気管６を配設することにより構成され
ている。In the immersion type membrane separation apparatus 1, a flat membrane cartridge 3 is arranged at regular intervals inside a box frame-shaped membrane case 2 having an open top and bottom. The air diffusion case 4 is configured by disposing an air diffusion tube 6 communicating with an air supply source such as a blower 5 outside the tank.
【０００４】膜カートリッジ３は、濾板７の両表面に濾
過膜８を配置し、濾板７と濾過膜８との間あるいは濾板
７の内部に形成される膜透過液流路（図示せず）に連通
する膜透過液取出口９を濾板７に形成することにより構
成されている。In the membrane cartridge 3, a filtration membrane 8 is disposed on both surfaces of a filter plate 7, and a membrane permeate flow path (shown in the drawing) formed between the filter plates 7 or inside the filter plate 7. The filter plate 7 is formed with a membrane permeated liquid outlet 9 communicating with the filter plate 7).
【０００５】そして、膜カートリッジ３の膜透過液取出
口９に連通して膜透過液取出チューブ１０と集合管１１
が設けられ、この集合管１１に連通して膜透過液導出管
１２が設けられている。The membrane permeated liquid outlet 9 of the membrane cartridge 3 communicates with the membrane permeated liquid outlet tube 10 and the collecting pipe 11.
Is provided, and a membrane permeated liquid outlet pipe 12 is provided in communication with the collecting pipe 11.
【０００６】このような構成において、処理槽内の活性
汚泥混合液などの被処理液を濾過する際には、膜透過液
導出管１２、集合管１１，膜透過液取出チューブ１０を
通じて膜カートリッジ３の透過液流路に吸引圧を負荷す
ることにより、あるいは槽内の被処理液の水頭を濾過駆
動力として、被処理液中に含まれる活性汚泥などの懸濁
物質を濾過膜８で捕捉し、濾過膜８を透過して透過液流
路内に流入した膜透過液を膜透過液取出チューブ１０、
集合管１１、膜透過液導出管１２を通じて処理槽の外部
へ取り出している。In such a configuration, when a liquid to be treated such as an activated sludge mixed liquid in the treatment tank is filtered, the membrane cartridge 3 is passed through the membrane permeate outlet pipe 12, the collecting pipe 11, and the membrane permeate outlet tube 10. By applying a suction pressure to the permeated liquid flow path or using the head of the liquid to be treated in the tank as a filtration driving force, suspended substances such as activated sludge contained in the liquid to be treated are captured by the filtration membrane 8. The membrane permeate which has passed through the filtration membrane 8 and has flowed into the permeate flow path is passed through a membrane permeate extract tube 10,
It is taken out of the treatment tank through the collecting pipe 11 and the membrane permeated liquid outlet pipe 12.
【０００７】このとき、ブロワ５により散気管６を通じ
て散気し、その空気の気泡およびそれにより生起される
上昇水流は膜カートリッジ３間の間隙に流入させること
によって、被処理液中に酸素を供給するとともに、膜カ
ートリッジ３の膜面全体を均一に洗浄し、膜面における
濃度分極を小さくして濾過抵抗を小さくするようにして
いる。At this time, air is diffused by the blower 5 through the air diffuser 6, and the bubbles of the air and the rising water generated by the air flow into the gap between the membrane cartridges 3 to supply oxygen to the liquid to be treated. At the same time, the entire membrane surface of the membrane cartridge 3 is uniformly washed, and the concentration polarization on the membrane surface is reduced to reduce the filtration resistance.
【０００８】ところが、膜カートリッジ３はたとえば、
ＡＢＳ樹脂などの濾板７を用いて寸法４９０×１０００
×６ｍｍ、重さ３ｋｇに製作し、膜ケース２の内側面に
形成したスリット２ａと下部に形成したストッパ２ｂと
により８ｍｍ間隔で上下方向に配列しているため、空気
の気泡と上昇水流が膜カートリッジ３間の間隙を通り抜
ける際に摩擦力が発生し、膜カートリッジ３が上向きに
押し上げられる。膜カートリッジ３に作用する上向きの
力は、被処理液の粘度や空気量などにもよるが、１５０
〜５００ｇ／枚である。However, the membrane cartridge 3 is, for example,
Dimension 490 × 1000 using filter plate 7 such as ABS resin
X 6 mm, weigh 3 kg, and are vertically arranged at 8 mm intervals by slits 2 a formed on the inner surface of the membrane case 2 and stoppers 2 b formed below, so that air bubbles and rising water flow A frictional force is generated when passing through the gap between the cartridges 3, and the membrane cartridge 3 is pushed upward. The upward force acting on the membrane cartridge 3 depends on the viscosity of the liquid to be treated and the amount of air.
５００500 g / sheet.
【０００９】このため、たとえば図７に示したように、
膜ケース２の上部に浮上防止板１３を設けて、膜カート
リッジ３の浮上を防止している。この浮上防止板１３は
膜カートリッジ３の水平方向の振動防止にも効果的であ
る。For this reason, for example, as shown in FIG.
An anti-floating plate 13 is provided above the membrane case 2 to prevent the membrane cartridge 3 from floating. The anti-floating plate 13 is also effective for preventing the vibration of the membrane cartridge 3 in the horizontal direction.
【００１０】また別方法として、濾板７を成形する際に
材料の中に重金属などを混合しで比重を大きくし、膜カ
ートリッジ３の浮上を防止することもある。As another method, when forming the filter plate 7, a heavy metal or the like may be mixed into the material to increase the specific gravity to prevent the membrane cartridge 3 from floating.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら、上記し
たように浮上防止板１３を設けた時も、膜カートリッジ
３に垂直方向の振動が生じ、図８に示したように、浮上
防止板１３に接触する濾板７の肩部が摩耗することがあ
る。これを防止するために浮上防止板１３の下部にゴム
板１３ａを取り付けているが、ゴム板１３ａの交換頻度
を少なくすると肩部が摩耗することがある。However, even when the anti-floating plate 13 is provided as described above, vibration in the vertical direction occurs in the membrane cartridge 3, and as shown in FIG. The shoulder of the filter plate 7 may be worn. To prevent this, the rubber plate 13a is attached to the lower part of the floating prevention plate 13, but if the frequency of replacement of the rubber plate 13a is reduced, the shoulder may be worn.
【００１２】濾板７の比重を大きくする方法でも、浮上
防止板１３を設置しないと膜カートリッジ３に水平方向
の振動が起き、膜ケース２のストッパ２ｂが摩耗するだ
けでなく、膜カートリッジ３自体も濾板７の下肩部が摩
耗し、膜カートリッジ３の寿命が短縮されることがあ
る。Even in the method of increasing the specific gravity of the filter plate 7, if the anti-floating plate 13 is not provided, horizontal vibration occurs in the membrane cartridge 3 so that not only the stopper 2b of the membrane case 2 is worn but also the membrane cartridge 3 itself Also, the lower shoulder of the filter plate 7 may be worn, and the life of the membrane cartridge 3 may be shortened.
【００１３】本発明は上記問題を解決するもので、濾板
の比重を大きくすることで膜カートリッジの浮上を防止
するに際し、浮上防止板を設けることなく、膜カートリ
ッジ下部や膜ケースの摩耗を防止できる浸漬型膜分離装
置を提供することを目的とするものである。The present invention solves the above-mentioned problems. In preventing the floating of the membrane cartridge by increasing the specific gravity of the filter plate, it is possible to prevent the lower portion of the membrane cartridge and the abrasion of the membrane case without providing a floating preventing plate. It is an object of the present invention to provide an immersion type membrane separation device which can be used.
【００１４】[0014]
【課題を解決するための手段】上記問題を解決するため
に、本発明の請求項１記載の浸漬型膜分離装置は、上下
が開口した箱枠状のケーシング内に平板状の膜カートリ
ッジを一定間隔で平行に配列し、膜カートリッジの下方
に散気管を配設した浸漬型膜分離装置において、各膜カ
ートリッジに、散気管からの曝気空気によって浮上しな
い重量を賦与し、前記ケーシングに、各膜カートリッジ
の下側面全体に当接して各膜カートリッジを保持するス
ノコ状の受け部を設けたものである。In order to solve the above-mentioned problems, in the immersion type membrane separation apparatus according to the first aspect of the present invention, a plate-like membrane cartridge is fixed in a box-like casing having upper and lower openings. In an immersion type membrane separation device which is arranged in parallel at intervals and has a diffuser tube below the membrane cartridge, each membrane cartridge is given a weight that does not float due to aeration air from the diffuser tube, and the casing is provided with each membrane. This is provided with a saw-shaped receiving portion for holding each membrane cartridge in contact with the entire lower surface of the cartridge.
【００１５】請求項２記載の浸漬型膜分離装置は、受け
部をケーシングと一体に形成したものである。請求項３
記載の浸漬型膜分離装置は、受け部をケーシングに着脱
自在に設けたものである。In the immersion type membrane separation device according to the second aspect, the receiving portion is formed integrally with the casing. Claim 3
In the immersion type membrane separation device described above, the receiving portion is detachably provided on the casing.
【００１６】上記した構成によれば、膜カートリッジは
曝気空気によって浮上しない重さとして、透過水取出用
ノズルなどが存在しない下側面全体をスノコ状の受け部
で受けるようにしたため、膜カートリッジの荷重を分散
させることができ、それにより、濾板の摩耗を防止し、
膜カートリッジの寿命を延ばすことができる。According to the above-described structure, the weight of the membrane cartridge is such that it does not float due to the aerated air. Can be dispersed, thereby preventing the abrasion of the filter plate,
The life of the membrane cartridge can be extended.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施形態を図面を
参照しながら説明する。図１から図３に示した浸漬型膜
分離装置の全体構成は図６〜図８を用いて説明した従来
のものとほぼ同様なので、従来のものと同様の作用を有
する部材に図６〜図８と同じ符号を付して詳しい説明を
省略する。Embodiments of the present invention will be described below with reference to the drawings. Since the entire configuration of the immersion type membrane separation device shown in FIGS. 1 to 3 is almost the same as the conventional one described with reference to FIGS. 6 to 8, members having the same functions as those of the conventional one are shown in FIGS. The same reference numerals as in FIG.
【００１８】ここで、膜カートリッジ３は、濾板にバリ
ウム等の重金属が混合されていて、散気管６からの曝気
空気によって浮上しない重量を有しており、図７に示し
たような浮上防止板は設けられていない。Here, the membrane cartridge 3 is such that heavy metals such as barium are mixed in the filter plate and has a weight that does not float due to the aeration air from the diffuser 6, and prevents the rising as shown in FIG. No board is provided.
【００１９】また膜ケース２には、従来と同様に膜カー
トリッジ３を一定間隔で配列する上下方向のスリット２
ａが内側面に形成され、スリット２ａと交わる方向のス
トッパ２ｂが下部に形成されるとともに、各膜カートリ
ッジ３の下側面全体に当接して各膜カートリッジ３を保
持するスノコ状受け部１４が着脱自在に設けられてい
る。The membrane case 2 is provided with slits 2 in the vertical direction in which the membrane cartridges 3 are arranged at regular intervals as in the prior art.
a is formed on the inner surface, a stopper 2b in the direction intersecting with the slit 2a is formed at the lower portion, and a slender-shaped receiving portion 14 that contacts the entire lower surface of each membrane cartridge 3 and holds each membrane cartridge 3 is attached and detached. It is provided freely.
【００２０】スノコ状受け部１４は、膜カートリッジ３
の下側面とほぼ同一幅かつ同一長さの受け板１４ａと、
各受け板１４ａを膜カートリッジ３と同一ピッチで連結
する連結部１４ｂとで構成されていて、各受け板１４ａ
の端部１４ｃがスリット２ａに嵌入された状態でストッ
パ２ｂ上に載置されており、各受け板１４ａの上に膜カ
ートリッジ３が載置されている。The muzzle-shaped receiving portion 14 is provided with the membrane cartridge 3.
A receiving plate 14a having substantially the same width and the same length as the lower surface of
A connecting portion 14b for connecting each receiving plate 14a to the membrane cartridge 3 at the same pitch.
Are mounted on the stoppers 2b with the end portions 14c thereof fitted in the slits 2a, and the membrane cartridge 3 is mounted on each receiving plate 14a.
【００２１】上記した構成によれば、透過水取出用ノズ
ル９などの邪魔なものがない膜カートリッジ３の下側面
全体をスノコ状受け部１４で受けるようにしたので、膜
カートリッジ３の荷重を分散させることができる。これ
により、浮上防止板で膜カートリッジ３の浮上を防止し
ていた時のような上部肩削れや、ストッパのみで膜カー
トリッジ３を受けていた時のような下部肩削れを防止で
き、膜カートリッジ３の寿命を延ばすことができる。According to the above-described structure, the entire lower surface of the membrane cartridge 3, which is free from obstructions such as the permeated water extracting nozzle 9, is received by the slender-shaped receiving portion 14, so that the load of the membrane cartridge 3 is dispersed. Can be done. Thus, it is possible to prevent the upper shoulder shaving as in the case where the floating of the membrane cartridge 3 is prevented by the floating prevention plate, and the lower shoulder as in the case where the membrane cartridge 3 is received only by the stopper. Life can be extended.
【００２２】図４および図５に示した浸漬型膜分離装置
は図１〜図３を用いて説明した上記のものとほぼ同様で
あるが、膜カートリッジ３の下側面とほぼ同一幅かつ同
一長さの受け板１４ａを膜ケース２に一体に形成するこ
とによりスノコ状受け部１４が設けられている。この構
成によっても、上記と同様に膜カートリッジ３の下側面
全体をスノコ状受け部１４で受けることで、膜カートリ
ッジ３の荷重を分散させることができ、膜カートリッジ
３の寿命を延ばすことができる。The immersion type membrane separation apparatus shown in FIGS. 4 and 5 is substantially the same as that described above with reference to FIGS. 1 to 3, except that it has substantially the same width and the same length as the lower surface of the membrane cartridge 3. The receiving plate 14a is formed integrally with the membrane case 2 to provide a slender receiving portion 14. According to this configuration, the load on the membrane cartridge 3 can be dispersed by receiving the entire lower surface of the membrane cartridge 3 with the slender-shaped receiving portion 14 as described above, and the life of the membrane cartridge 3 can be extended.
【００２３】[0023]
【発明の効果】以上のように本発明によれば、膜カート
リッジは曝気空気によって浮上しない重さとして、透過
水取出用ノズルなどが存在しない膜カートリッジの下側
面全体をスノコ状受け部で受けるようにしたため、膜カ
ートリッジの荷重を分散させることができ、浮上防止板
で膜カートリッジの浮上を防止していた時のような上部
肩削れや、ストッパのみで膜カートリッジを受けていた
時のような下部肩削れを防止でき、膜カートリッジの寿
命を延ばすことができる。また、浮上防止板を省略でき
ることで装置構造が簡単になり、膜カートリッジの出し
入れなどの維持管理操作が容易になる。As described above, according to the present invention, the weight of the membrane cartridge is such that it does not float due to the aerated air, so that the entire lower surface of the membrane cartridge, which does not have a permeated water extraction nozzle or the like, is received by the scoop-shaped receiving portion. As a result, the load on the membrane cartridge can be dispersed, and the upper shoulder can be shaved off as if the floating of the membrane cartridge was prevented by the anti-floating plate, or the lower portion as when receiving the membrane cartridge only with the stopper. Shoulder shaving can be prevented, and the life of the membrane cartridge can be extended. In addition, since the anti-floating plate can be omitted, the device structure is simplified, and maintenance operations such as taking in and out of the membrane cartridge are facilitated.
【図１】本発明の一実施形態における浸漬型膜分離装置
の縦断面図である。FIG. 1 is a longitudinal sectional view of an immersion type membrane separation device according to an embodiment of the present invention.
【図２】図１の浸漬型膜分離装置に配置されて膜カート
リッジを受けるスノコ状受け部の斜視図である。FIG. 2 is a perspective view of a saw-shaped receiving portion that is arranged in the immersion type membrane separation device of FIG. 1 and receives a membrane cartridge.
【図３】図１の浸漬型膜分離装置において、スノコ状受
け部の上に膜カートリッジを配列した状態を示した平面
図である。FIG. 3 is a plan view showing a state in which the membrane cartridges are arranged on the veneer-shaped receiving portion in the immersion type membrane separation device of FIG.
【図４】本発明の他の実施形態における浸漬型膜分離装
置の縦断面図である。FIG. 4 is a longitudinal sectional view of a submerged membrane separation device according to another embodiment of the present invention.
【図５】図４の浸漬型膜分離装置において、スノコ状受
け部の上に膜カートリッジを配列した状態を示した平面
図である。FIG. 5 is a plan view showing a state in which the membrane cartridges are arranged on the veneer-shaped receiving portion in the immersion type membrane separation device of FIG.
【図６】従来の浸漬型膜分離装置の全体構成を示した一
部破断図である。FIG. 6 is a partially cutaway view showing the entire configuration of a conventional immersion type membrane separation device.
【図７】図６の浸漬型膜分離装置に浮上防止板を設けた
状態を示した縦断面図である。7 is a longitudinal sectional view showing a state in which a floating prevention plate is provided in the immersion type membrane separation device of FIG. 6;
【図８】図７の浸漬型膜分離装置に配置されて浮上防止
板により肩部が摩耗した膜カートリッジを示した正面図
である。8 is a front view showing a membrane cartridge arranged in the immersion type membrane separation device of FIG. 7 and having a shoulder portion worn by a floating prevention plate.
１ 浸漬型膜分離装置 ２ 膜ケース ３ 膜カートリッジ ４ 散気ケース ６ 散気管 14 スノコ状受け部 DESCRIPTION OF SYMBOLS 1 Immersion type | mold membrane separation apparatus 2 Membrane case 3 Membrane cartridge 4 Air diffuser case 6 Air diffuser tube 14 Reclining part
───────────────────────────────────────────────────── フロントページの続き (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 亀田 豊 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 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Yata 2-47, Shikitsuhigashi 1-chome, Namiwa-ku, Osaka-shi, Osaka (72) Inventor Masaharu Nishi Shikitsu-higashi, Naniwa-ku, Osaka, Osaka 1-2-47 Kubota Co., Ltd. (72) Inventor Yutaka Kameda 1-2-47 Shikitsu Higashi, Naniwa-ku, Osaka City, Osaka Prefecture Kubota Co., Ltd.
Claims (3)
平板状の膜カートリッジを一定間隔で平行に配列し、膜
カートリッジの下方に散気管を配設した浸漬型膜分離装
置において、各膜カートリッジに、散気管からの曝気空
気によって浮上しない重量を賦与し、前記ケーシング
に、各膜カートリッジの下側面全体に当接して各膜カー
トリッジを保持するスノコ状の受け部を設けたことを特
徴とする浸漬型膜分離装置。1. A submerged membrane separation apparatus in which plate-shaped membrane cartridges are arranged in parallel at regular intervals in a box-frame-shaped casing having upper and lower openings, and a diffuser tube is arranged below the membrane cartridge. The cartridge is provided with a weight that does not float due to the aeration air from the air diffuser, and the casing is provided with a slender-shaped receiving portion that abuts on the entire lower surface of each membrane cartridge and holds each membrane cartridge. Immersion type membrane separation equipment.
とを特徴とする請求項１記載の浸漬型膜分離装置。2. The immersion type membrane separation device according to claim 1, wherein the receiving portion is formed integrally with the casing.
ことを特徴とする請求項１記載の浸漬型膜分離装置。3. The immersion type membrane separation device according to claim 1, wherein the receiving portion is detachably provided on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32063096A JPH10156151A (en) | 1996-12-02 | 1996-12-02 | Immersion type membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32063096A JPH10156151A (en) | 1996-12-02 | 1996-12-02 | Immersion type membrane separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10156151A true JPH10156151A (en) | 1998-06-16 |
Family
ID=18123560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32063096A Pending JPH10156151A (en) | 1996-12-02 | 1996-12-02 | Immersion type membrane separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10156151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040047329A (en) * | 2002-11-29 | 2004-06-05 | 주식회사 코레드 | Sewage treatment membrane module and membrane unit and manufacturing method |
| JP2007157996A (en) * | 2005-12-05 | 2007-06-21 | Tokyo Seimitsu Co Ltd | Work carrying device and work carrying method |
| WO2008117783A1 (en) * | 2007-03-26 | 2008-10-02 | Toray Industries, Inc. | Membrane element and membrane separation device |
| JP2010131538A (en) * | 2008-12-05 | 2010-06-17 | Toray Ind Inc | Exchange method of immersion type membrane separation module and flat membrane element |
-
1996
- 1996-12-02 JP JP32063096A patent/JPH10156151A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040047329A (en) * | 2002-11-29 | 2004-06-05 | 주식회사 코레드 | Sewage treatment membrane module and membrane unit and manufacturing method |
| JP2007157996A (en) * | 2005-12-05 | 2007-06-21 | Tokyo Seimitsu Co Ltd | Work carrying device and work carrying method |
| WO2008117783A1 (en) * | 2007-03-26 | 2008-10-02 | Toray Industries, Inc. | Membrane element and membrane separation device |
| JP2010131538A (en) * | 2008-12-05 | 2010-06-17 | Toray Ind Inc | Exchange method of immersion type membrane separation module and flat membrane element |
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