JPH09225272A - Membrane separation device - Google Patents
Membrane separation deviceInfo
- Publication number
- JPH09225272A JPH09225272A JP3641396A JP3641396A JPH09225272A JP H09225272 A JPH09225272 A JP H09225272A JP 3641396 A JP3641396 A JP 3641396A JP 3641396 A JP3641396 A JP 3641396A JP H09225272 A JPH09225272 A JP H09225272A
- Authority
- JP
- Japan
- Prior art keywords
- membrane separation
- air
- separation unit
- diffuser
- air diffuser
- 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.)
- Granted
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、膜分離ユニットY
に対して気泡を供給する散気装置Sを、前記膜分離ユニ
ットYの略全巾にわたって前記膜分離ユニットYの下方
に設けてある膜膜分離装置に関する。TECHNICAL FIELD The present invention relates to a membrane separation unit Y.
The present invention relates to a membrane separation device in which an air diffuser S for supplying air bubbles is provided below the membrane separation unit Y over substantially the entire width of the membrane separation unit Y.
【0002】[0002]
【従来の技術】従来、この種の膜分離装置Mにおける散
気装置Sは、図9及び図10に示すように、膜分離ユニ
ットYの略全巾にわたる長さの散気具Soを複数本並べ
て前記膜分離ユニットYの下方に設けたステーUに夫々
載置し、取付具Gにより夫々取付固定して構成してあっ
た。2. Description of the Related Art Conventionally, as shown in FIGS. 9 and 10, an air diffusing device S in a membrane separating device M of this type has a plurality of air diffusing devices So having a length substantially over the entire width of the membrane separating unit Y. They are arranged side by side on the stays U provided below the membrane separation unit Y, and are attached and fixed by the fixtures G, respectively.
【0003】[0003]
【発明が解決しようとする課題】ところが、前記膜分離
装置を長期間稼動させていると、活性汚泥中の夾雑物や
活性汚泥の粘度上昇で散気装置の散気孔Shが目づまり
を起こし易くなる。目づまりを起こした所は十分な気泡
上昇に伴う処理液の上昇移動作用が得られないので平膜
m表面の処理液による洗浄作用が良好に行えず膜面閉塞
をまねくようになるが、散気孔Shのつまりは徐々に起
こるため時々点検して洗浄することで防げる。However, when the membrane separation device is operated for a long period of time, the diffuser holes Sh of the air diffuser are apt to be clogged due to the increase in the viscosity of the impurities and the activated sludge in the activated sludge. . At the place where the clogging occurs, the upward movement of the treatment liquid due to the sufficient rise of bubbles cannot be obtained, so that the cleaning action of the treatment liquid on the surface of the flat membrane m cannot be performed well and the membrane surface may be clogged. Sh is gradually clogged, so it can be prevented by inspecting and cleaning it occasionally.
【0004】しかし、膜分離ユニットYの略全巾にわた
る長さの散気具Soを、夫々前記膜分離ユニットYの下
方に設けてあるステーUに取付固定しているので、前記
散気装置Sの点検及びメンテナンスが必要な場合には、
前記膜分離ユニットYを膜分離槽E2から取り出した
後、取付具GをステーUから取り外して散気具Soを分
離しなければならず、非常に手間が掛かるものであっ
た。また、前記散気具Soが長尺であるのでエアー供給
部から下手側程圧力が低くなり、散気に偏りが生じ易く
なるとともに、気泡の調節が困難であるので平膜m表面
の良好な洗浄が行い難くあまり好ましいものではなかっ
た。そこで、本発明の目的は、上記の問題点を解決し、
散気装置Sの点検及びメンテナンスが容易に行えるとと
もに、膜分離ユニットYに対して偏りのない気泡の供給
を可能にする散気装置Sを提供するところにある。However, since the air diffusers So each having a length substantially equal to the entire width of the membrane separation unit Y are attached and fixed to the stays U provided below the membrane separation unit Y, the air diffuser S is provided. If inspection and maintenance of the
After taking out the membrane separation unit Y from the membrane separation tank E2, the fixture G has to be removed from the stay U to separate the air diffuser So, which is very troublesome. In addition, since the air diffuser So is long, the pressure becomes lower toward the lower side from the air supply unit, uneven distribution is likely to occur, and air bubbles are difficult to control, so that the surface of the flat membrane m is excellent. It was difficult to wash and was not very preferable. Therefore, an object of the present invention is to solve the above problems,
An object of the present invention is to provide an air diffusing device S that allows easy inspection and maintenance of the air diffusing device S, and that enables uniform supply of bubbles to the membrane separation unit Y.
【0005】[0005]
【課題を解決するための手段】 〔特徴構成1〕上記目的を達成するための本発明の特徴
構成は、膜分離ユニット下方の巾方向両端側から各別に
中央部に延出させた第1散気具と第2散気具を設けて前
記散気装置を構成し、前記第1散気具と前記第2散気具
の夫々に給気管を連通接続すると共に、各々の前記給気
管が着脱自在に前記膜分離ユニットのフレームに取付て
ある点にある。Means for Solving the Problems [Characteristic Configuration 1] The characteristic configuration of the present invention for achieving the above-mentioned object is to provide a first dispersion separately extending to the central portion from both ends in the width direction below the membrane separation unit. An air diffuser and a second air diffuser are provided to configure the air diffuser, and an air supply pipe is communicatively connected to each of the first air diffuser and the second air diffuser, and each air supply pipe is detachable. The point is that it is freely attached to the frame of the membrane separation unit.
【0006】〔特徴構成1の作用〕つまり、第1散気具
と第2散気具を巾方向両端部から中央部に延出させる構
成にしてあるので、前記各散気具を比較的短いものにで
き、夫々の前記散気具に連通接続してある給気管を膜分
離ユニットのフレームから取り外すことにより容易に散
気装置を膜分離槽外へ取り出すことが出来る。[Operation of Characteristic Configuration 1] That is, since the first air diffuser and the second air diffuser are configured to extend from both ends in the width direction to the central portion, each air diffuser is relatively short. The air diffuser can be easily taken out of the membrane separation tank by removing the air supply pipe connected to each of the air diffusers from the frame of the membrane separation unit.
【0007】[0007]
【発明の実施の形態】以下に本発明の実施の形態を図面
に基づいて説明する。図1に示すように、上流から順
に、沈澱分離槽N1、嫌気濾床槽N2、脱窒槽E1、膜
分離槽E2、消毒槽Q、処理水槽Tを被処理水が移流す
るように設けて浄化槽を構成してある。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, in order from the upstream side, a precipitation separation tank N1, an anaerobic filter bed tank N2, a denitrification tank E1, a membrane separation tank E2, a disinfection tank Q, and a treated water tank T are installed so that the water to be treated is advected and a septic tank Is configured.
【0008】前記沈澱分離槽N1は、流入口Iから浄化
槽に流入した被処理水の原水を受けて、その被処理水の
夾雑物を沈澱除去しつつ、内部に生息する嫌気性菌によ
り、被処理水を嫌気処理し、嫌気濾床槽N2に移流自在
に構成してある。前記嫌気濾床槽N2は、流入した被処
理水を嫌気処理する嫌気性菌を育成しうる嫌気濾床Fを
内装してあり、前記沈澱分離槽N1から移流してきた被
処理水を嫌気処理して前記脱窒槽E1に移流するように
構成してある。The sedimentation separation tank N1 receives the raw water of the water to be treated which has flowed into the septic tank from the inflow port I, precipitates and removes the impurities in the water to be treated, and at the same time, the anaerobic bacteria living inside the The treated water is anaerobically treated, and can be freely transferred to the anaerobic filter bed tank N2. The anaerobic filter bed N2 is internally provided with an anaerobic filter bed F capable of growing anaerobic bacteria that anaerobically treat the inflowing treated water, and anaerobically treats the treated water advancing from the precipitation separation tank N1. And is admitted to the denitrification tank E1.
【0009】前記脱窒槽E1は、前記嫌気濾床槽N2か
ら流入した比較的固形成分濃度の低い被処理水を一次貯
留しつつ、被処理水を主に脱窒処理する脱窒菌を内部に
育成する構成にしてある。また、前記脱窒槽E1にはエ
アリフト作用で被処理水を汲みあげて膜分離槽に移送さ
せる移送ポンプAを内装してあり、定常的に被処理水を
膜分離槽E2に移送する構成にしてある。The denitrification tank E1 primarily stores therein the water to be treated having a relatively low solid component concentration that has flowed in from the anaerobic filter bed tank N2, while growing denitrifying bacteria, which mainly denitrify the water to be treated, inside. It is configured to Further, the denitrification tank E1 is internally provided with a transfer pump A for pumping the water to be treated by an air lift action and transferring it to the membrane separation tank, and is configured to constantly transfer the water to be treated to the membrane separation tank E2. is there.
【0010】前記膜分離槽E2は、図2に示すように、
多数の平膜mを並設してなる膜分離ユニットYとその前
記膜分離ユニットYの下方に設けた前記膜分離ユニット
Yに対して気泡を供給する散気装置Sよりなる膜分離装
置Mを内装している。前記散気装置Mは、前記膜分離ユ
ニットYの巾方向両端側から各別に中央部に延出させた
第一散気具S1と第二散気具S2とで構成し、前記第一
散気具S1と第二散気具S2の夫々に連通接続した給気
管Kを膜分離ユニットYのフレームYaに設けてある係
止アームYbに着脱自在に取付固定して、第一散気具S
1及び第二散気具S2の支持をすると共にブロワBから
の空気供給によって、前記膜分離装置Mに気泡を供給
し、前記平膜mの膜面に汚泥等の付着しすぎるのを防止
し、かつ、膜分離槽E2内に被処理水の上昇流を形成し
ながら被処理水に酸素を供給可能に構成してある。The membrane separation tank E2 is, as shown in FIG.
A membrane separation device M including a membrane separation unit Y formed by arranging a number of flat membranes m in parallel and an air diffuser S for supplying bubbles to the membrane separation unit Y provided below the membrane separation unit Y. It is decorated. The air diffuser M is composed of a first air diffuser S1 and a second air diffuser S2, which are individually extended from the both ends in the width direction of the membrane separation unit Y to the center, and the first air diffuser is used. The air supply pipe K connected to each of the tool S1 and the second air diffuser S2 is detachably attached and fixed to the locking arm Yb provided on the frame Ya of the membrane separation unit Y, and the first air diffuser S is attached.
1 and the second air diffuser S2 are supported, and air is supplied from the blower B to supply air bubbles to the membrane separation device M to prevent excessive deposition of sludge or the like on the membrane surface of the flat membrane m. In addition, oxygen can be supplied to the water to be treated while forming an upward flow of the water to be treated in the membrane separation tank E2.
【0011】前記各散気具は、図3及び図4に示すよう
に、下部が開放された箱型形状の散気具本体Saに給気
管Kを接続して形成されており、前記散気具本体Saの
長手方向左右の両側板には複数個の散気のための散気孔
Shが設けられてある。尚、前記第一、第二散気具S
1,S2への空気供給は、一つのブロワBからの空気供
給を配管により分配し、その各分配量をバルブVで調節
可能にして、夫々の給気管Kを介して夫々の散気具へ供
給される。このとき、第一散気具S1、第二散気具S2
を巾方向両端部から中央部に延出させる構成にしてある
ので、前記各散気具を比較的短いものにでき、各散気具
毎の散気の偏りを少くできながら、並設する複数の散気
具相互間の散気の偏りに対してバルブVの調節でコント
ロールできるようになる。また、散気部の下部が開放さ
れているので例え詰まりが生じたとしても開放部Cから
余剰の気泡が放出されるので、散気不能になるような最
悪の事態を防ぐことができる。As shown in FIGS. 3 and 4, each of the air diffusers is formed by connecting an air supply pipe K to a box-shaped air diffuser body Sa whose lower portion is opened. A plurality of air diffusion holes Sh for air diffusion are provided on both left and right side plates of the ingredient body Sa in the longitudinal direction. Incidentally, the first and second air diffusers S
The air supply to S1 and S2 is made by distributing the air supply from one blower B through a pipe, and adjusting the distribution amount of each by a valve V, and to each air diffuser via each air supply pipe K. Supplied. At this time, the first air diffuser S1 and the second air diffuser S2
Since it is configured to extend from both ends in the width direction to the central part, each of the air diffusers can be made relatively short, and a plurality of air diffusers arranged in parallel can be arranged while reducing the deviation of air diffuser for each air diffuser. It becomes possible to control the deviation of air diffusion between the air diffusers by adjusting the valve V. Further, since the lower part of the air diffuser is open, even if clogging occurs, excess air bubbles are released from the open part C, so that it is possible to prevent the worst situation in which the air cannot be diffused.
【0012】前記膜分離装置E2のそれぞれの平膜mに
は、集水管m1を連設するとともに、前記集水管m1か
らの濾過水を合流させて膜分離槽外へ導く取水管m2を
接続してあり、前記膜分離槽E2の水面よりも下方で前
記膜分離槽E2に隣接して設けてある消毒槽Qに連通接
続してある。前記処理水槽Tは、水中ポンプPを内装し
てあり、前記処理水を貯留したのち、水中ポンプAで処
理水を汲み上げ、排出管Oを介して放流口Zから浄化槽
外へ放流可能に構成してある。A water collecting pipe m1 is connected to each of the flat membranes m of the membrane separating device E2, and a water collecting pipe m2 for joining the filtered water from the water collecting pipe m1 and guiding it to the outside of the membrane separating tank is connected. It is connected to a disinfection tank Q provided adjacent to the membrane separation tank E2 below the water surface of the membrane separation tank E2. The treated water tank T is internally provided with an underwater pump P. After the treated water is stored, the treated water is pumped up by the submersible pump A and can be discharged from the discharge port Z to the outside of the septic tank through the discharge pipe O. There is.
【0013】このような浄化槽においては、前記流入口
Iから流入した被処理水は、前記沈澱分離槽N1、前記
嫌気濾床槽N2を経て嫌気処理されつつ前記脱窒槽E1
に流入し、前記移送ポンプAで前記膜分離槽E2に流入
したのち、前記膜分離装置Mで膜分離処理され、膜分離
処理された濾過水は、消毒槽Qにおいて消毒処理された
のち処理水槽Tで一時貯留され、水中ポンプPで排出管
Oを介して放流口Zから浄化槽外へ放流される。In such a septic tank, the water to be treated flowing in through the inflow port I is anaerobically treated through the precipitation separation tank N1 and the anaerobic filter bed tank N2, and the denitrification tank E1.
Flow into the membrane separation tank E2 by the transfer pump A, and then the membrane-separated device M performs membrane separation treatment, and the membrane-separated filtered water is sterilized in the disinfection tank Q and then treated water tank. The water is temporarily stored at T and is discharged from the discharge port Z to the outside of the septic tank by the submersible pump P via the discharge pipe O.
【0014】上記浄化槽で第一、第二散気具S1,S2
よりなる散気装置Sの点検及びメンテナンスが必要な場
合には、まず、膜分離槽E2上部にあるマンホールHを
開放し、膜分離ユニットYのフレームYaに設けてある
係止アームYbに取付固定してある給気管Kの係止を解
除して、給気管Kを回転揺動させることによって散気具
を膜分離ユニットY下方より退避させ、上部に引き上げ
ることにより浄化槽外にとりだせる。そして、点検及び
メンテナンスが終わったあとはその逆の工程をおこなう
ことで散気装置Sである第一、第二散気具S1,S2の
夫々を膜分離ユニットYの下方に容易にセットすること
ができる。このとき、前記給気管Kの係止アームYbの
取付部位には、高さ確認用の表示線Lが記してあるの
で、取付の際膜分離ユニットYのフレームYaに設けて
ある係止アームYbに給気管Kに設けた前記表示線Lを
合わせることで膜分離装置Mに対する散気具の気泡供給
の高さを調節することが容易にできる。In the above septic tank, the first and second air diffusers S1 and S2
When inspection and maintenance of the air diffuser S is required, first, the manhole H above the membrane separation tank E2 is opened and fixed to the locking arm Yb provided in the frame Ya of the membrane separation unit Y. The air supply pipe K is unlocked, and the air supply pipe K is rotated and rocked to retract the air diffuser from below the membrane separation unit Y, and by pulling it up, it can be taken out of the septic tank. After the inspection and maintenance are completed, the reverse process is performed to easily set the first and second air diffusers S1 and S2, which are the air diffusers S, below the membrane separation unit Y. You can At this time, since a display line L for height confirmation is written on the mounting portion of the locking arm Yb of the air supply pipe K, the locking arm Yb provided on the frame Ya of the membrane separation unit Y at the time of mounting. By adjusting the above-mentioned display line L provided on the air supply pipe K, it is possible to easily adjust the height of bubble supply of the air diffuser to the membrane separation device M.
【0015】〔別実施形態〕先の実施例においては、膜
分離ユニットY下方の巾方向両端部から各別に中央部に
延出させた第一散気具S1と第二散気具S2の夫々を各
給気管Kにつき一つの散気具を接続する構成にしていた
が、これに限らず、図5に示すように、二本の給気管K
に対して一つのU字状に曲げた散気具を接続した構成の
ものであってもよい。[Other Embodiments] In the previous embodiment, the first air diffuser S1 and the second air diffuser S2 are respectively extended from the widthwise both ends below the membrane separation unit Y to the central portion. Although one air diffuser is connected to each air supply pipe K, the present invention is not limited to this, and as shown in FIG.
Alternatively, a single air diffuser bent in a U shape may be connected.
【0016】散気具の形状も先の実施例に限定されず、
図6に示すように、散気具本体Saをパイプ材で構成
し、パイプの側面には山形形状の複数個の散気孔Shを
設けるとともにパイプ先端には下向きの開放部Cを設け
てある。散気孔Shを山形形状に形成することにより詰
まりが生じにくくなり、例え詰まりが生じたとしても開
放部Cから余剰の気泡が放出されるので散気不能になる
ことがない。また、係止部位も前記膜分離ユニットYの
上部にある係止アームYbだけでなく、図7及び図8に
示すように前記膜分離ユニットYの下方に設けたステー
Uaに各々一対づつの係止アームUbを設け、さらに、
前記膜分離ユニットのフレームの下方にある開口部Rの
形状を上方程狭くなる台形形状に構成することによっ
て、前記開口部Rの側面の傾斜が、前記散気具S1,S
2を係止アームUbに係止するための案内面Raとな
る。つまり、前記開口部Rに前記散気具S1,S2を挿
入し、前記散気具S1,S2に連通接続した給気管Kの
上昇操作にともない散気具本体Saが前記開口部Rの側
面の案内面Raに摺接案内されて係止アームUbに係合
する。以上の構成により、散気具S1,S2の位置合わ
せが行い易くなるだけでなく、前記上部の係止部位だけ
のものに較べて散気具S1,S2の位置ずれを防止する
ことができる。The shape of the air diffuser is not limited to the above embodiment, either.
As shown in FIG. 6, the air diffuser body Sa is made of a pipe material, and a plurality of mountain-shaped air diffusion holes Sh are provided on the side surface of the pipe, and a downward opening portion C is provided at the tip of the pipe. Since the air diffuser Sh is formed in a chevron shape, clogging is less likely to occur, and even if clogging occurs, excess air bubbles are released from the open portion C, so that air diffusion is not impossible. Further, not only the locking arm Yb at the upper part of the membrane separation unit Y but also the locking portions are provided in pairs at the stays Ua provided below the film separation unit Y as shown in FIGS. 7 and 8. A stop arm Ub is provided, and further,
By forming the shape of the opening R below the frame of the membrane separation unit into a trapezoidal shape that becomes narrower toward the top, the inclination of the side surface of the opening R is such that the air diffusers S1 and S.
It serves as a guide surface Ra for locking 2 to the locking arm Ub. That is, by inserting the air diffusers S1 and S2 into the opening R and raising the air supply pipe K connected in communication with the air diffusers S1 and S2, the air diffuser body Sa moves to the side surface of the opening R. It is slidably guided by the guide surface Ra and engages with the locking arm Ub. With the above configuration, not only the position of the air diffusers S1 and S2 can be easily aligned, but also the displacement of the air diffusers S1 and S2 can be prevented as compared with the case where only the locking portion of the upper portion is provided.
【0017】尚、特許請求の項に図面との対照を便利に
するために符号を記すが、該記入により本発明は添付図
面に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the accompanying drawings by the description.
【0018】[0018]
【発明の効果】以上説明したように、本発明によって少
ないスペースでも第一、第二散気具を夫々給気管を軸と
して回転揺動させてから引き出すことができ、そのため
に膜分離槽から膜分離ユニットを取り出す必要がなくな
り、前記散気装置の点検及びメンテナンスが容易におこ
なえる。その結果、散気装置のつまりを未然に防止した
り、つまりの洗浄も簡単に行えるので、散気孔を比較的
小さな孔にして酸素溶解効率をあげることが可能にな
り、高い水処理性能を維持できるようになった。また、
散気具を比較的短いものにできるので、全体として散気
に偏りが生じにくくしやすくなった。As described above, according to the present invention, the first and second air diffusers can be rotated and oscillated around the air supply pipes and then withdrawn even in a small space. Therefore, the membrane can be removed from the membrane separation tank. Since it is not necessary to take out the separation unit, the air diffuser can be easily inspected and maintained. As a result, it is possible to prevent clogging of the air diffuser and to easily clean the clogging, making it possible to increase the oxygen dissolution efficiency by making the diffusing holes relatively small and maintain high water treatment performance. I can do it now. Also,
Since the air diffuser can be made relatively short, it is easy to make the air diffuser less biased as a whole.
【図1】浄化槽の縦断側面図FIG. 1 is a vertical side view of a septic tank.
【図2】膜分離槽における横断側面図FIG. 2 is a cross-sectional side view of the membrane separation tank.
【図3】膜分離槽における平面図FIG. 3 is a plan view of the membrane separation tank.
【図4】散気具における斜視図FIG. 4 is a perspective view of the air diffuser.
【図5】別実施例の膜分離槽における平面図FIG. 5 is a plan view of a membrane separation tank according to another embodiment.
【図6】散気具における別形態の斜視図FIG. 6 is a perspective view of another form of the air diffuser.
【図7】別実施例の要部正面図FIG. 7 is a front view of a main part of another embodiment.
【図8】別実施例の要部作用説明図FIG. 8 is an explanatory view of the operation of main parts of another embodiment.
【図9】従来例の膜分離槽における横断側面図FIG. 9 is a cross-sectional side view of a conventional membrane separation tank.
【図10】従来例の膜分離槽における平面図FIG. 10 is a plan view of a conventional membrane separation tank.
Y 膜分離ユニット S 散気装置 S1 第一散気具 S2 第二散気具 K 給気管 Ya フレーム Yb 係止アーム Sa 散気具本体 Sh 散気孔 C 開放部 Y Membrane separation unit S Air diffuser S1 First air diffuser S2 Second air diffuser K Air supply pipe Ya frame Yb Locking arm Sa Air diffuser body Sh Air diffuser C Opening part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩橋 正修 滋賀県甲賀郡甲西町高松2番地の1 株式 会社クボタ滋賀工場内 (72)発明者 浜田 勝己 滋賀県甲賀郡甲西町高松2番地の1 株式 会社クボタ滋賀工場内 (72)発明者 古瀬 真一 滋賀県甲賀郡甲西町高松2番地の1 株式 会社クボタ滋賀工場内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaharu Iwahashi 1 stock at 2 Takamatsu, Kosai-cho, Koga-gun, Shiga Prefecture Inside of Kubota Shiga Plant (72) Katsumi Hamada 2 stock, 2 Takamatsu, Kosai-cho, Koga-gun, Shiga Prefecture Inside the Kubota Shiga Plant (72) Inventor Shinichi Furuse 2 at Takamatsu, Kosai-cho, Koga-gun, Koga-gun, Shiga Prefecture Inside the Kubota Shiga Plant
Claims (1)
る散気装置Sを、前記膜分離ユニットYの略全巾にわた
って前記膜分離ユニットYの下方に設けてある膜分離装
置であって、前記膜分離ユニットY下方の巾方向両端側
から各別に中央部に延出させた第1散気具S1と第2散
気具S2を設けて前記散気装置Sを構成し、前記第1散
気具S1と前記第2散気具S2の夫々に給気管Kを連通
接続すると共に、各々の前記給気管Kが着脱自在に前記
膜分離ユニットYのフレームYaに取付てある膜分離装
置。1. A membrane separation device in which an air diffuser S for supplying bubbles to the membrane separation unit Y is provided below the membrane separation unit Y over substantially the entire width of the membrane separation unit Y. The first air diffuser S1 and the second air diffuser S2, which are separately extended to the central portion from both ends in the width direction below the membrane separation unit Y, are provided to configure the air diffuser S, and the first air diffuser S is formed. A membrane separation device in which an air supply pipe K is communicatively connected to each of the air implement S1 and the second air diffuser S2, and each of the air supply pipes K is detachably attached to the frame Ya of the membrane separation unit Y.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03641396A JP3258553B2 (en) | 1996-02-23 | 1996-02-23 | Membrane separation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03641396A JP3258553B2 (en) | 1996-02-23 | 1996-02-23 | Membrane separation device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09225272A true JPH09225272A (en) | 1997-09-02 |
JP3258553B2 JP3258553B2 (en) | 2002-02-18 |
Family
ID=12469149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP03641396A Expired - Fee Related JP3258553B2 (en) | 1996-02-23 | 1996-02-23 | Membrane separation device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3258553B2 (en) |
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US6708957B2 (en) | 1998-10-09 | 2004-03-23 | Zenon Environmental Inc. | Moving aerator for immersed membranes |
WO2008139836A1 (en) * | 2007-05-10 | 2008-11-20 | Toray Industries, Inc. | Immersion type membrane separation apparatus and method of operating the same |
JP2010194395A (en) * | 2009-02-23 | 2010-09-09 | Asahi Kasei Chemicals Corp | Air diffuser and immersed membrane unit |
JPWO2009047970A1 (en) * | 2007-10-10 | 2011-02-17 | 東レ株式会社 | Fine bubble diffuser, fine bubble diffuser, and submerged membrane separator |
WO2011137990A1 (en) * | 2010-05-06 | 2011-11-10 | Microdyn-Nadir Gmbh | Filtration device having internal recirculation |
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KR101435763B1 (en) * | 2014-02-20 | 2014-09-25 | (주)천마기술단 | Aeration apparatus |
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-
1996
- 1996-02-23 JP JP03641396A patent/JP3258553B2/en not_active Expired - Fee Related
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6708957B2 (en) | 1998-10-09 | 2004-03-23 | Zenon Environmental Inc. | Moving aerator for immersed membranes |
JP5304250B2 (en) * | 2007-05-10 | 2013-10-02 | 東レ株式会社 | Immersion membrane separation apparatus and operation method thereof |
WO2008139836A1 (en) * | 2007-05-10 | 2008-11-20 | Toray Industries, Inc. | Immersion type membrane separation apparatus and method of operating the same |
US20100213124A1 (en) * | 2007-05-10 | 2010-08-26 | Toray Industries, Inc | Submerged membrane separation apparatus and method for operation thereof |
TWI424969B (en) * | 2007-05-10 | 2014-02-01 | Toray Industries | Immersion membrane separation apparatus and operation method thereof |
JPWO2009047970A1 (en) * | 2007-10-10 | 2011-02-17 | 東レ株式会社 | Fine bubble diffuser, fine bubble diffuser, and submerged membrane separator |
JP2010194395A (en) * | 2009-02-23 | 2010-09-09 | Asahi Kasei Chemicals Corp | Air diffuser and immersed membrane unit |
WO2011137990A1 (en) * | 2010-05-06 | 2011-11-10 | Microdyn-Nadir Gmbh | Filtration device having internal recirculation |
US10040030B2 (en) | 2010-05-06 | 2018-08-07 | Microdyn-Nadir Gmbh | Filtration device having internal recirculation |
JP2012066180A (en) * | 2010-09-22 | 2012-04-05 | Asahi Kasei Chemicals Corp | Air diffusion pipe, air diffusion unit and immersion membrane unit |
JP2013017979A (en) * | 2011-07-14 | 2013-01-31 | Meidensha Corp | Air diffuser |
WO2014065268A1 (en) * | 2012-10-25 | 2014-05-01 | 三菱レイヨン株式会社 | Aeration device, operation method therefor, and water treatment apparatus |
JPWO2014065268A1 (en) * | 2012-10-25 | 2016-09-08 | 三菱レイヨン株式会社 | Air diffuser, operation method thereof, and water treatment apparatus |
JP2018027543A (en) * | 2012-10-25 | 2018-02-22 | 三菱ケミカル株式会社 | Air dispersion device, operation method thereof, and water treatment device |
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CN105314731A (en) * | 2014-07-15 | 2016-02-10 | 三菱丽阳株式会社 | Aeration device, water treatment apparatus, and operation method therefor |
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