JPH09192459A - Immersion type membrane separator cleaning method - Google Patents
Immersion type membrane separator cleaning methodInfo
- Publication number
- JPH09192459A JPH09192459A JP529696A JP529696A JPH09192459A JP H09192459 A JPH09192459 A JP H09192459A JP 529696 A JP529696 A JP 529696A JP 529696 A JP529696 A JP 529696A JP H09192459 A JPH09192459 A JP H09192459A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- membrane separation
- cleaning
- water
- ozone
- 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
(57)【要約】
【課題】 薬品洗浄を低減しながら膜カートリッジの膜
面を効果的に洗浄できる浸漬型膜分離装置の洗浄方法を
提供する。
【解決手段】 膜分離槽１内の被処理水２中にオゾン含
有空気を供給して、膜カートリッジ５に付着した目詰ま
り物質をオゾンにより酸化分解する。目詰まり物質の
内、有機性物質などの被酸化性物質がオゾンにより酸化
分解される。
(57) Abstract: A cleaning method for an immersion type membrane separation device capable of effectively cleaning the membrane surface of a membrane cartridge while reducing chemical cleaning. SOLUTION: Ozone-containing air is supplied into water to be treated 2 in a membrane separation tank 1 to oxidize and decompose a clogging substance attached to a membrane cartridge 5 by ozone. Oxidizable substances such as organic substances among the clogging substances are oxidatively decomposed by ozone.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、膜分離槽内に設け
られた浸漬型膜分離装置の洗浄方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning an immersion type membrane separation device provided in a membrane separation tank.
【０００２】[0002]
【従来の技術】たとえば、し尿等の有機性排水を処理す
る水処理施設においては、硝化・脱窒素槽の下流に、図
２に示したような膜分離槽１を設けており、膜分離槽１
内において、硝化・脱窒素槽から送られた硝化・脱窒素
処理水である被処理水２を浸漬型膜分離装置３により固
液分離するようにしている。2. Description of the Related Art For example, in a water treatment facility for treating organic wastewater such as human waste, a membrane separation tank 1 as shown in FIG. 2 is provided downstream of a nitrification / denitrification tank. 1
In the inside, the water to be treated 2 which is the nitrification / denitrification treated water sent from the nitrification / denitrification tank is subjected to solid-liquid separation by the immersion type membrane separator 3.
【０００３】膜分離装置３は、図３に示したようなもの
であり、上下が開口した箱状の膜ケース４の内部に上下
方向に配置する平板状の膜カートリッジ５を一定間隔で
並列に配置し、同じく上下が開口した箱状の散気ケース
６の内部に、槽外のブロワ７などの空気供給源に連通し
た散気装置８を配置し、膜ケース４と散気ケース６とを
互いに上下に配置することにより構成されている。The membrane separation device 3 is as shown in FIG. 3, in which a flat plate-shaped membrane cartridge 5 vertically arranged inside a box-shaped membrane case 4 having an opening at the top and bottom is arranged in parallel at regular intervals. The diffusing device 8 communicating with an air supply source such as a blower 7 outside the tank is arranged inside the box-shaped diffusing case 6 which is also opened at the top and bottom, and the membrane case 4 and the diffusing case 6 are arranged. It is configured by arranging them one above the other.
【０００４】膜カートリッジ５は、濾板９の両表面に有
機濾過膜１０を配置し、濾板９と濾過膜１０との間に連
通する透過水流路（図示せず）を濾板９に形成し、透過
水流路に連通する吸引チューブ１１を設けることにより
構成されている。そして、各膜カートリッジ５の吸引チ
ューブ１１に連通して集水管１２が設けられ、集水管１
２に連通して透過水管１３や吸引ポンプ１４などの吸引
手段が設けられている。In the membrane cartridge 5, the organic filtration membranes 10 are arranged on both surfaces of the filter plate 9, and a permeate passage (not shown) communicating between the filter plates 9 and 10 is formed in the filter plate 9. However, the suction tube 11 communicating with the permeated water flow path is provided. A water collecting pipe 12 is provided so as to communicate with the suction tube 11 of each of the membrane cartridges 5.
A suction means such as a permeated water pipe 13 or a suction pump 14 is provided so as to communicate with 2.
【０００５】このような構成において、膜分離装置３に
より被処理水２を膜分離する際には、吸引ポンプ１４に
よって透過水管１３，集水管１２，吸引チューブ１１を
通じて膜カートリッジ５の透過水流路に吸引圧を負荷す
ることにより、あるいは膜カートリッジ５より上方の被
処理水２の水頭を濾過駆動圧とすることにより、被処理
水２中に含まれる活性汚泥などの懸濁物質を濾過膜１０
で捕捉し、濾過膜１０を透過して透過水流路内に流入し
た透過水を吸引チューブ１１，集水管１２，透過水管１
３を通じて膜分離槽１の外部へ取り出している。In such a structure, when the water to be treated 2 is separated by the membrane separator 3, the suction pump 14 passes through the permeated water pipe 13, the water collection pipe 12, and the suction tube 11 to the permeated water flow path of the membrane cartridge 5. Suspended substances such as activated sludge contained in the water to be treated 2 are filtered by applying suction pressure or by setting the head of the water to be treated 2 above the membrane cartridge 5 as a filtration driving pressure.
The permeated water that has been captured by the permeation filter 10 and permeated through the filtration membrane 10 and flowed into the permeated water channel is used as the suction tube 11, the water collection pipe 12, and the permeated water pipe 1.
It is taken out of the membrane separation tank 1 through 3.
【０００６】このとき、ブロワ７により散気装置８を通
じて曝気し、曝気空気の気泡およびそれにより生起され
る上昇水流によって、被処理水２を攪拌するとともに、
膜カートリッジ５の膜面全体を均一に洗浄するようにし
ている。At this time, the blower 7 performs aeration through the air diffuser 8, and the water to be treated 2 is agitated by the bubbles of the aerated air and the rising water flow generated thereby.
The entire membrane surface of the membrane cartridge 5 is uniformly washed.
【０００７】そして、長時間運転する間に濾過機能が低
下してきたときに、濾過運転を停止したうえで、ブロワ
７により散気装置８を通じて曝気することにより、曝気
空気の気泡および上昇水流によって膜カートリッジ５の
膜面を洗浄し、濾過機能を回復させるようにしている。[0007] When the filtration function deteriorates during long-term operation, the filtration operation is stopped and aeration is performed by the blower 7 through the air diffuser 8. The membrane surface of the cartridge 5 is washed to restore the filtration function.
【０００８】または、膜分離槽１内の被処理水２を洗浄
薬品液で置換するか、膜カートリッジ５を１枚ずつある
いは膜ケース４内に配列した状態で膜分離槽１から取り
出し、外部の薬品洗浄槽（図示せず）へ搬送して浸漬す
ることにより、膜カートリッジ５を薬品洗浄している。
洗浄薬品液は、目詰まり物質の質と量に応じて決定する
が、目詰まり物質が有機性物質であるときには次亜塩素
酸ソーダなどを使用し、無機性物質であるときにはシュ
ウ酸などを使用している。Alternatively, the water to be treated 2 in the membrane separation tank 1 is replaced with a cleaning chemical liquid, or the membrane cartridges 5 are taken out one by one or in the state of being arranged in the membrane case 4 and taken out from the membrane separation tank 1. The membrane cartridge 5 is cleaned with a chemical by being transported to a chemical cleaning tank (not shown) and immersed therein.
The cleaning chemical liquid is determined according to the quality and amount of the clogging substance.When the clogging substance is an organic substance, sodium hypochlorite is used, and when it is an inorganic substance, oxalic acid is used. doing.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、曝気の
みによる洗浄では洗浄力が不十分であり、薬品洗浄で
は、維持管理費が高くなり、装置の腐食や膜の劣化を招
くだけでなく、作業に危険が伴い、作業性も悪くなると
いう問題がある。However, cleaning by only aeration is insufficient in cleaning power, and chemical cleaning increases maintenance costs and causes not only corrosion of the apparatus and deterioration of the film but also work. There is a problem that workability is deteriorated with danger.
【００１０】本発明は上記課題を解決するもので、薬品
洗浄を低減しながら膜カートリッジの膜面を効果的に洗
浄できる浸漬型膜分離装置の洗浄方法を提供することを
目的とするものである。The present invention has been made to solve the above problems, and an object of the present invention is to provide a cleaning method for an immersion type membrane separation apparatus which can effectively clean the membrane surface of a membrane cartridge while reducing chemical cleaning. .
【００１１】[0011]
【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の洗浄方
法は、膜分離槽内に設けられた浸漬型膜分離装置の洗浄
方法であって、膜分離槽内の被処理水中にオゾン含有空
気を供給して、浸漬型膜分離装置を構成する膜カートリ
ッジに付着した目詰まり物質をオゾンにより酸化分解す
るようにしたものである。In order to solve the above problems, the method for cleaning an immersion type membrane separation apparatus according to claim 1 of the present invention is a method for cleaning an immersion type membrane separation apparatus provided in a membrane separation tank. In this method, ozone-containing air is supplied into the water to be treated in the membrane separation tank so that the clogging substances attached to the membrane cartridge constituting the immersion type membrane separation device are oxidatively decomposed by ozone. .
【００１２】請求項２記載の浸漬型膜分離装置の洗浄方
法は、上下が開口した箱状のケースの内部において散気
装置の上方に膜カートリッジを設置してなる浸漬型膜分
離装置では、前記散気装置によりオゾン含有空気を供給
するようにしたものである。According to a second aspect of the present invention, there is provided a method for cleaning an immersion type membrane separation apparatus, wherein the membrane cartridge is installed above the air diffuser inside a box-shaped case having upper and lower openings. The air containing ozone is supplied by an air diffuser.
【００１３】請求項３記載の浸漬型膜分離装置の洗浄方
法は、膜分離槽内の被処理水を清水または洗浄薬品液に
より置換するようにしたものである。上記した請求項１
記載の構成によれば、膜カートリッジは、被処理水中に
浸漬された状態において、目詰まり物質たる有機性物質
などの被酸化性物質がオゾンにより酸化分解され、その
目詰まりが解消される。According to a third aspect of the present invention, there is provided a cleaning method for an immersion type membrane separation apparatus in which the water to be treated in the membrane separation tank is replaced with fresh water or a cleaning chemical liquid. Claim 1 mentioned above
According to the configuration described above, in the state where the membrane cartridge is immersed in the water to be treated, the oxidizable substance such as the organic substance that is the clogging substance is oxidatively decomposed by ozone, and the clogging is eliminated.
【００１４】請求項２記載の構成によれば、上下が開口
した箱状のケースの内部において、散気装置より上方へ
膜カートリッジに向けて効率よくオゾン含有空気が供給
されるため、膜洗浄が効果的になされる。According to the second aspect of the present invention, the ozone-containing air is efficiently supplied toward the membrane cartridge upward from the air diffuser inside the box-shaped case whose upper and lower sides are opened. Done effectively.
【００１５】請求項３記載の構成によれば、膜分離槽内
には清水または洗浄薬品液が入れられているので、オゾ
ンは無駄に消費されることなく目詰まり物質たる被酸化
性物質の酸化分解に効率的に利用され、膜洗浄が効果的
になされる。洗浄薬品液が入れられている場合には、洗
浄薬品液によっても膜洗浄がなされるため、洗浄効果が
高くなる。According to the third aspect of the present invention, since the fresh water or the cleaning chemical liquid is contained in the membrane separation tank, ozone is not consumed wastefully and the oxidation of the oxidizable substance as the clogging substance is prevented. It is efficiently used for decomposition and membrane cleaning is effectively performed. When the cleaning chemical liquid is contained, the cleaning effect is enhanced because the cleaning film is also cleaned by the cleaning chemical liquid.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照しながら説明する。図１において、し尿等の有機
性排水を処理する硝化・脱窒素槽の下流に設けられた膜
分離槽は、図２および図３を用いて説明した従来のもの
とほぼ同様の構成を有しているので、従来のものと同様
の作用を有する部材に図２および図３と同じ符号を付し
て説明する。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the membrane separation tank provided downstream of the nitrification / denitrification tank for treating organic wastewater such as human waste has a configuration similar to that of the conventional one described with reference to FIGS. 2 and 3. Therefore, members having the same functions as those of the conventional one will be described with the same reference numerals as those in FIGS. 2 and 3.
【００１７】膜分離槽１は、硝化・脱窒素槽より送られ
る活性汚泥などの懸濁物質を含んだ硝化・脱窒素処理水
を被処理水２として、内部に設けた浸漬型膜分離装置３
により固液分離を行うものである。The membrane separation tank 1 is an immersion type membrane separation device 3 provided therein with nitrification / denitrification treated water containing suspended substances such as activated sludge sent from the nitrification / denitrification tank as treated water 2.
The solid-liquid separation is performed by.
【００１８】膜分離装置３は、膜ケース４の内部に上下
方向に配置する平板状の膜カートリッジ５を一定間隔で
配列し、膜ケース４の下方に配置した散気ケース６の内
部に、空気供給源７ａとオゾン含有空気供給源７ｂとに
連通した散気装置８を配置することにより構成されてい
る。In the membrane separation device 3, flat plate-shaped membrane cartridges 5 arranged vertically are arranged inside the membrane case 4 at regular intervals, and an air diffusion case 6 arranged below the membrane case 4 is filled with air. The air diffuser 8 is arranged in communication with the supply source 7a and the ozone-containing air supply source 7b.
【００１９】膜カートリッジ５は、図示を省略するが、
濾板の両表面に有機濾過膜を配置し、濾板と濾過膜との
間に連通する透過水流路を濾板に形成することにより構
成されており、膜カートリッジ５の透過水流路に連通す
るように吸引チューブ１１と集水管１２が設けられ、こ
の集水管１２に連通するように透過水管１３と吸引ポン
プ１４が設けられている。Although not shown, the membrane cartridge 5 is not shown.
It is configured by disposing organic filtration membranes on both surfaces of the filter plate and forming a permeate flow channel communicating between the filter plate and the filter membrane in the filter plate, and communicating with the permeate flow channel of the membrane cartridge 5. Thus, the suction tube 11 and the water collection pipe 12 are provided, and the permeated water pipe 13 and the suction pump 14 are provided so as to communicate with the water collection pipe 12.
【００２０】膜分離槽１の底部には、槽内底部に滞留す
る汚泥を適宜硝化・脱窒素槽へ返送する汚泥返送管１５
が開口しており、この汚泥返送管１５はポンプ１６を介
装している。At the bottom of the membrane separation tank 1, a sludge return pipe 15 for appropriately returning the sludge accumulated in the bottom of the tank to the nitrification / denitrification tank.
Is opened, and the sludge return pipe 15 is provided with a pump 16.
【００２１】以下、上記構成における作用を説明する。
被処理水２を固液分離する際には、吸引ポンプ１４によ
り透過水管１３，集水管１２，吸引チューブ１１を通じ
て膜カートリッジ５の透過水流路に吸引圧を負荷するこ
とにより、被処理水２中に含まれる活性汚泥などの懸濁
物質を濾過膜で捕捉し、濾過膜を透過して透過水流路内
に流入した透過水を吸引チューブ１１，集水管１２，透
過水管１３を通じて膜分離槽１の外部へ取り出す。The operation of the above configuration will be described below.
At the time of solid-liquid separation of the water to be treated 2, the suction pressure is applied to the permeated water flow path of the membrane cartridge 5 by the suction pump 14 through the permeated water pipe 13, the water collection pipe 12, and the suction tube 11 so that the treated water 2 Suspended substances such as activated sludge contained in the permeate are trapped by the filtration membrane, and the permeated water that permeates the filtration membrane and flows into the permeated water channel is passed through the suction tube 11, the water collection pipe 12, and the permeated water pipe 13 to Take it out.
【００２２】このとき、空気供給源７ａより散気装置８
を通じて曝気し、曝気空気の気泡およびそれにより生起
される上昇水流によって、被処理水２を攪拌するととも
に、膜カートリッジ５の膜面を洗浄する。At this time, the air diffuser 8 is supplied from the air supply source 7a.
The water to be treated is agitated by the bubbles of the aerated air and the rising water flow generated thereby, and the membrane surface of the membrane cartridge 5 is washed.
【００２３】そして、長時間濾過運転する間に膜カート
リッジ５に目詰まりが生じてきたときに、吸引ポンプ１
４を停止して濾過運転を停止したうえで、オゾン含有空
気供給源７ｂより散気装置８に向けてオゾン含有空気を
供給する。When the membrane cartridge 5 becomes clogged during the filtration operation for a long time, the suction pump 1
4 is stopped to stop the filtration operation, and then ozone-containing air is supplied from the ozone-containing air supply source 7b toward the air diffuser 8.
【００２４】これにより、散気ケース６と膜ケース４の
内部において、散気装置８より上方へ膜カートリッジ５
に向けて効率よくオゾン含有空気が供給されて、目詰ま
り物質たる有機性物質などの被酸化性物質はオゾンによ
り酸化分解され、膜カートリッジ５の目詰まりは解消さ
れる。As a result, inside the air diffuser case 6 and the membrane case 4, the membrane cartridge 5 moves upward from the air diffuser 8.
Ozone-containing air is efficiently supplied to the oxidant, and oxidizable substances such as organic substances that are clogging substances are oxidatively decomposed by ozone, and clogging of the membrane cartridge 5 is eliminated.
【００２５】（実施例）上記した膜分離槽１において、
空気１ｍ3 あたりオゾン１６ｇを含んだオゾン含有空気
を膜カートリッジ（膜面積０．８ｍ2 ）１枚につき０．
１ｍ3 ／分の曝気量で供給したところ、以下のような結
果が得られた。(Example) In the membrane separation tank 1 described above,
Ozone-containing air containing 16 g of ozone per 1 m 3 of air was supplied to a membrane cartridge (membrane area: 0.8 m 2 ) of 0.
When supplied with an aeration rate of 1 m 3 / min, the following results were obtained.
【００２６】 通常運転時のフラックス 0.4 〜0.5 （m3／m2 ・日） 洗浄前（目詰まり時）のフラックス 0.2 〜0.3 （m3／
m2 ・日） 洗浄後のフラックス 0.4 〜0.5 （m3／m2 ・日） なお、上記した構成に代えて、膜分離槽１内の被処理水
２を清水または洗浄薬品液で置換した後に、オゾン含有
空気供給源７ｂより散気装置８に向けてオゾン含有空気
を供給するようにすれば、オゾンは、被処理水中の懸濁
物質の酸化分解に無駄に消費されることなく、被酸化性
物質の酸化分解に有効に利用され、高い洗浄効果が得ら
れる。被処理水を洗浄薬品液で置換した場合には、洗浄
薬品液によっても膜洗浄がなされるので、より高い洗浄
効果が得られる。Flux in normal operation 0.4 to 0.5 (m 3 / m 2 · day) Flux before cleaning (when clogged) 0.2 to 0.3 (m 3 / m
m 2 · day) flux from 0.4 to 0.5 after washing (m 3 / m 2 · day) In place of the construction described above, after replacing the water to be treated 2 membrane separation tank 1 with fresh water or cleaning agent liquid By supplying the ozone-containing air from the ozone-containing air supply source 7b toward the air diffuser 8, the ozone is oxidized without being wastefully consumed for the oxidative decomposition of the suspended matter in the water to be treated. It is effectively used for the oxidative decomposition of organic substances and provides a high cleaning effect. When the water to be treated is replaced with the cleaning chemical liquid, the membrane cleaning is performed also with the cleaning chemical liquid, so that a higher cleaning effect can be obtained.
【００２７】[0027]
【発明の効果】以上のように本発明によれば、被処理水
中にオゾン含有空気を供給することによって、膜カート
リッジに付着した目詰まり物質たる被酸化性物質をオゾ
ンにより酸化分解することができるので、膜カートリッ
ジを被処理水に浸漬した状態において目詰まりを解消で
きる。As described above, according to the present invention, by supplying ozone-containing air into the water to be treated, it is possible to oxidize and decompose the oxidizable substance, which is the clogging substance attached to the membrane cartridge, by ozone. Therefore, the clogging can be eliminated in the state where the membrane cartridge is immersed in the water to be treated.
【００２８】膜カートリッジが、上下が開口した箱状の
ケースの内部において散気装置の上方に配列されたもの
である場合には、既設の散気装置を利用して膜カートリ
ッジに向けて効率よくオゾン含有空気を供給することが
できるので、高い洗浄効果を得ることができる。If the membrane cartridge is arranged above the air diffuser inside a box-shaped case having an opening at the top and bottom, the existing air diffuser can be used efficiently toward the membrane cartridge. Since ozone-containing air can be supplied, a high cleaning effect can be obtained.
【００２９】被処理水を清水または洗浄薬品液により置
換することによって、オゾンを無駄に消費することなく
目詰まり物質の酸化分解に有効に利用することができる
ので、高い洗浄効果を得ることができる。被処理水を洗
浄薬品液で置換した場合には、洗浄薬品液によっても膜
洗浄を行えるので、より高い洗浄効果を得ることができ
る。By substituting the water to be treated with fresh water or a cleaning chemical liquid, ozone can be effectively utilized for oxidative decomposition of the clogging substance without wasting it, so that a high cleaning effect can be obtained. . When the water to be treated is replaced with the cleaning chemical liquid, the membrane cleaning can be performed with the cleaning chemical liquid, so that a higher cleaning effect can be obtained.
【図１】本発明の浸漬型膜分離装置の洗浄方法が実施さ
れる膜分離槽の全体構成を示した説明図である。FIG. 1 is an explanatory diagram showing an overall configuration of a membrane separation tank in which a cleaning method for an immersion type membrane separation apparatus of the present invention is carried out.
【図２】従来の膜分離槽の全体構成を示した説明図であ
る。FIG. 2 is an explanatory diagram showing the overall configuration of a conventional membrane separation tank.
【図３】図２の膜分離槽に配置された浸漬型膜分離装置
の構成を示した説明図である。FIG. 3 is an explanatory diagram showing a configuration of an immersion type membrane separation device arranged in the membrane separation tank of FIG.
１ 膜分離槽 ２ 被処理水 ４ 膜ケース ５ 膜カートリッジ ６ 散気ケース ７ａ 空気供給源 ７ｂ オゾン含有空気供給源 ８ 散気装置 DESCRIPTION OF SYMBOLS 1 Membrane separation tank 2 Water to be treated 4 Membrane case 5 Membrane cartridge 6 Air diffuser case 7a Air supply source 7b Ozone-containing air supply source 8 Air diffuser
Claims (3)
置の洗浄方法であって、膜分離槽内の被処理水中にオゾ
ン含有空気を供給して、浸漬型膜分離装置を構成する膜
カートリッジに付着した目詰まり物質をオゾンにより酸
化分解することを特徴とする浸漬型膜分離装置の洗浄方
法。1. A method for cleaning an immersion type membrane separation device provided in a membrane separation tank, wherein ozone-containing air is supplied to the water to be treated in the membrane separation tank to constitute the immersion type membrane separation device. A method for cleaning an immersion type membrane separation device, which comprises oxidizing and decomposing clogging substances attached to a membrane cartridge with ozone.
状のケースの内部において散気装置の上方に膜カートリ
ッジを設置してなり、オゾン含有空気は前記散気装置に
より供給されることを特徴とする請求項１記載の浸漬型
膜分離装置の洗浄方法。2. The immersion type membrane separation device comprises a membrane cartridge installed above a diffuser inside a box-shaped case having openings at the top and bottom, and ozone-containing air is supplied by the diffuser. The cleaning method for an immersion type membrane separator according to claim 1.
薬品液により置換されたことを特徴とする請求項１また
は請求項２のいずれかに記載の浸漬型膜分離装置の洗浄
方法。3. The cleaning method for an immersion type membrane separation apparatus according to claim 1, wherein the water to be treated in the membrane separation tank is replaced with fresh water or a cleaning chemical liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP529696A JPH09192459A (en) | 1996-01-17 | 1996-01-17 | Immersion type membrane separator cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP529696A JPH09192459A (en) | 1996-01-17 | 1996-01-17 | Immersion type membrane separator cleaning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09192459A true JPH09192459A (en) | 1997-07-29 |
Family
ID=11607292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP529696A Pending JPH09192459A (en) | 1996-01-17 | 1996-01-17 | Immersion type membrane separator cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09192459A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000027510A1 (en) * | 1998-11-10 | 2000-05-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Method for filtration with membrane |
| CN106745701A (en) * | 2016-11-30 | 2017-05-31 | 华电水务工程有限公司 | Using the method and reaction unit of Membrane Bioreactor for Wastewater Treatment organic wastewater |
| CN107337326A (en) * | 2017-09-06 | 2017-11-10 | 江西博鑫精陶环保科技有限公司 | A kind of ceramic membrane aeration and pressure-fired ozone film reused water processing method and processing unit |
| JP6695515B1 (en) * | 2019-06-17 | 2020-05-20 | 三菱電機株式会社 | Filtration membrane cleaning device, filtration membrane cleaning method, and water treatment system |
-
1996
- 1996-01-17 JP JP529696A patent/JPH09192459A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000027510A1 (en) * | 1998-11-10 | 2000-05-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Method for filtration with membrane |
| CN106745701A (en) * | 2016-11-30 | 2017-05-31 | 华电水务工程有限公司 | Using the method and reaction unit of Membrane Bioreactor for Wastewater Treatment organic wastewater |
| CN107337326A (en) * | 2017-09-06 | 2017-11-10 | 江西博鑫精陶环保科技有限公司 | A kind of ceramic membrane aeration and pressure-fired ozone film reused water processing method and processing unit |
| JP6695515B1 (en) * | 2019-06-17 | 2020-05-20 | 三菱電機株式会社 | Filtration membrane cleaning device, filtration membrane cleaning method, and water treatment system |
| WO2020255201A1 (en) * | 2019-06-17 | 2020-12-24 | 三菱電機株式会社 | Filtration membrane cleaning apparatus, filtration membrane cleaning method and water treatment system |
| CN113966249A (en) * | 2019-06-17 | 2022-01-21 | 三菱电机株式会社 | Filtering membrane cleaning device, filtering membrane cleaning method and water treatment system |
| CN113966249B (en) * | 2019-06-17 | 2024-10-15 | 三菱电机株式会社 | Filter membrane cleaning device, filter membrane cleaning method and water treatment system |
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