JPH08323351A - Method for cleaning membrane of membrane-incorporated water treating device and membrane cleaning device - Google Patents
Method for cleaning membrane of membrane-incorporated water treating device and membrane cleaning deviceInfo
- Publication number
- JPH08323351A JPH08323351A JP7137595A JP13759595A JPH08323351A JP H08323351 A JPH08323351 A JP H08323351A JP 7137595 A JP7137595 A JP 7137595A JP 13759595 A JP13759595 A JP 13759595A JP H08323351 A JPH08323351 A JP H08323351A
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- Japan
- Prior art keywords
- membrane
- cleaning
- suction
- differential pressure
- set value
- 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.)
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水、産業排水、生活
排水などの有機性排水、無機性排水を処理するのに用い
られる膜組込型水処理装置に関し、より詳しくは、同装
置の膜洗浄方法および膜洗浄装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane-incorporated water treatment apparatus used for treating organic and inorganic wastewater such as sewage, industrial wastewater, domestic wastewater, and more particularly, The present invention relates to a film cleaning method and a film cleaning device.
【０００２】[0002]
【従来の技術】従来の膜洗浄方法では、膜透過操作に伴
って膜にスライムなどが付着し、膜の目詰まりにより水
透過が困難になって来ると、水処理装置から膜を取り出
し、別の槽で薬品洗浄やブラシ機などを使用し膜洗浄を
行っていた。2. Description of the Related Art In the conventional membrane cleaning method, when slime or the like adheres to the membrane during the membrane permeation operation and the water permeation becomes difficult due to the clogging of the membrane, the membrane is taken out of the water treatment device and separated. The membrane was washed with chemicals and a brush machine in the tank.
【０００３】[0003]
【発明が解決しようとする課題】従来の方法では、上記
のように別の槽を設けて膜洗浄を行っていたため、メン
テナンスの負担増、建設コスト増、人件費増などの問題
が避けられなかった。According to the conventional method, since another tank is provided for cleaning the membrane as described above, problems such as increased maintenance burden, increased construction cost and increased labor cost cannot be avoided. It was
【０００４】本発明は、このような点に鑑み、メンテン
スが容易であり、建設コスト、人件費などを軽減するこ
とができる膜組込型水処理装置の膜洗浄方法および膜洗
浄装置を提供することを目的とする。In view of the above points, the present invention provides a membrane cleaning method and a membrane cleaning apparatus for a membrane-incorporated water treatment apparatus, which is easy to maintain and can reduce construction costs, labor costs and the like. The purpose is to
【０００５】[0005]
【課題を解決するための手段】本発明による膜組込型水
処理装置の膜洗浄方法は、膜組込型水処理装置におい
て、膜透過水の吸引差圧および／または吸引流量がある
設定値に達したときに、膜洗浄装置を自動的に駆動させ
ることを企図したものである。Means for Solving the Problems A method for cleaning a membrane of a membrane-incorporated water treatment apparatus according to the present invention is a membrane-incorporated water treatment apparatus in which a suction differential pressure and / or a suction flow rate of membrane permeated water is set to a set value. It is intended that the membrane cleaning device be automatically driven when the temperature reaches.
【０００６】すなわち、この膜洗浄方法は、請求項１記
載の通り、膜組込型水処理装置において、膜透過水の吸
引差圧および／または吸引流量を検知し、上記吸引差圧
が設定値まで上がった場合および／または上記吸引流量
が設定値まで下がった場合に、膜洗浄装置に駆動信号を
与えて膜を洗浄させることを特徴とする方法である。That is, in this membrane cleaning method, as described in claim 1, in the membrane-incorporated water treatment device, the suction differential pressure and / or the suction flow rate of the membrane permeated water is detected, and the suction differential pressure is set to a set value. The method is characterized in that a drive signal is applied to the membrane cleaning device to clean the membrane when the suction flow rate has fallen to the set value and / or when the suction flow rate has fallen to the set value.
【０００７】また、本発明による膜組込型水処理装置の
膜洗浄装置は、上記洗浄方法を実施するのに好適に使用
されるものである。The membrane cleaning apparatus for a membrane-incorporated water treatment apparatus according to the present invention is preferably used for carrying out the above-mentioned cleaning method.
【０００８】すなわち、この膜洗浄装置は、請求項２記
載の通り、膜組込型水処理装置において、膜組込槽の頂
部に前後方向および左右方向に移動自在に設けられた移
動台と、該移動台に上下動自在に取付けられた洗浄ブラ
シと、該洗浄ブラシを回転させる回転駆動装置とを具備
したことを特徴とする装置である。That is, the membrane cleaning apparatus is, in the membrane-incorporated water treatment apparatus, as described in claim 2, a movable table provided at the top of the membrane-incorporated tank so as to be movable in the front-rear direction and in the left-right direction. It is an apparatus comprising a cleaning brush attached to the movable table so as to be vertically movable, and a rotary drive device for rotating the cleaning brush.
【０００９】本発明による膜洗浄装置の好適な実施形態
は、請求項３記載の通り、請求項２記載の膜洗浄装置に
おいて、さらに、膜透過水の吸引差圧および／または吸
引流量を検知し、かつ上記吸引差圧が設定値まで上がっ
た場合および／または上記吸引流量が設定値まで下がっ
た場合に、請求項２記載の膜洗浄装置に駆動信号を与え
る中央制御装置とを具備したことを特徴とする膜洗浄装
置である。A preferred embodiment of the membrane cleaning apparatus according to the present invention is, as described in claim 3, in the membrane cleaning apparatus according to claim 2, further detecting the suction differential pressure and / or the suction flow rate of the membrane permeated water. And a central controller that gives a drive signal to the membrane cleaning apparatus when the suction differential pressure rises to a set value and / or when the suction flow rate drops to a set value. It is a characteristic membrane cleaning device.
【００１０】[0010]
【作用】請求項１記載の膜洗浄方法によれば、排水処理
がある時間続いて、膜にスライムなどが付着し、膜の目
詰まりにより水透過が困難になり、膜透過水の吸引差圧
がある設定値まで上がると、この吸引差圧をモニターし
ている中央制御装置（ＣＰＵ）がそれを感知し、膜洗浄
装置に駆動信号を与えて膜を自動的に洗浄させるので、
膜へのスライムなどの付着を常に所定値以下に抑え、膜
透過水の吸引差圧を所要値以下に保持して、排水処理を
連続的に行うことができる。According to the membrane cleaning method of the first aspect, slime or the like adheres to the membrane after the drainage treatment for a certain period of time, which makes it difficult to permeate water due to clogging of the membrane. When it reaches a certain set value, the central control unit (CPU) that monitors this suction differential pressure senses it and gives a drive signal to the membrane cleaning device to automatically clean the membrane.
Adhesion of slime or the like to the membrane is always suppressed to a predetermined value or less, the suction differential pressure of the membrane permeate water is kept to a required value or less, and the wastewater treatment can be continuously performed.
【００１１】請求項２記載の膜洗浄装置によれば、洗浄
ブラシは前後動自在、左右動自在、かつ、上下動自在に
なされているので、洗浄すべき膜の全面に渡って洗浄ブ
ラシを接触状態で移動させることができる。しかも洗浄
ブラシは回転するようになされているので、上記のよう
に同ブラシを膜面に接触させた状態で同ブラシを回転さ
せ、膜全面を洗浄することができる。According to the membrane cleaning apparatus of the second aspect, since the cleaning brush is movable back and forth, left and right, and vertically movable, the cleaning brush is contacted over the entire surface of the film to be cleaned. It can be moved in a state. Moreover, since the cleaning brush is adapted to rotate, the entire surface of the film can be cleaned by rotating the brush with the brush in contact with the film surface as described above.
【００１２】請求項３記載の膜洗浄方法によれば、洗浄
ブラシを洗浄すべき膜面に接触させた状態で回転させ、
膜全面を洗浄することができると共に、膜へのスライム
などの付着を常に所定値以下に抑え、膜透過水の吸引差
圧を所要値以下に保持して、排水処理を連続的に行うこ
とができる。According to the film cleaning method of the third aspect, the cleaning brush is rotated while being in contact with the film surface to be cleaned,
The entire membrane can be washed, the adhesion of slime etc. to the membrane is always kept below a predetermined value, the suction differential pressure of the permeated water of the membrane is kept below a required value, and the wastewater treatment can be performed continuously. it can.
【００１３】[0013]
【実施例】実施例に基き、本発明を詳しく説明する。EXAMPLES The present invention will be described in detail based on examples.
【００１４】実施例１（全膜洗浄） 図１および図２を参照して、まず、膜組込型水処理装置
における洗浄装置について説明する。Example 1 (Washing of All Membranes) With reference to FIGS. 1 and 2, first, a washing apparatus in a membrane-incorporated water treatment apparatus will be described.
【００１５】本明細書全体を通して、膜組込型水処理装
置の左右関係は図１を基準とする。また、膜組込型水処
理装置の前後関係は図２を基準とし、図２の左方を前
方、右方を後方とする。Throughout the specification, the left-right relationship of the membrane-incorporated water treatment device is based on FIG. Further, the front-back relationship of the membrane-incorporated water treatment device is based on FIG. 2, with the left side of FIG. 2 as the front and the right side as the rear.
【００１６】複数の浸漬型平膜(2) を組込んだ膜組込槽
(1) は、縦３０ｍｍ、横３８０ｍｍ、高さ３３０ｍｍ、
全有効容量２．７リットルのものであり、浸漬型平膜
(2) は、縦２０ｍｍ、横３２０ｍｍ、高さ２５０ｍｍの
直方形をなし、最大フラックス０．５ｍ3 ／ｍ2 ・ｄ
（汚泥濃度８０００ｍｇ／リットル・時）のものであ
る。膜組込槽(1) は、必要に応じて底部に曝気装置を備
えている。A membrane-incorporating tank incorporating a plurality of immersion flat membranes (2)
(1) is 30 mm long, 380 mm wide, 330 mm high,
Immersion type flat membrane with a total effective volume of 2.7 liters
(2) has a rectangular shape with a length of 20 mm, a width of 320 mm, and a height of 250 mm, and the maximum flux is 0.5 m 3 / m 2 · d.
(Sludge concentration 8000 mg / liter · hour). The membrane-incorporating tank (1) is equipped with an aerator at the bottom, if necessary.
【００１７】膜組込槽(1) には送水ポンプ(33)を備えた
排水供給管(34)が配され、複数の浸漬型平膜(2) にはそ
れぞれ処理水排出管(35)が配され、同排出管(35)には圧
力計(36)および吸引ポンプ(37)が設けられている。A drainage supply pipe (34) equipped with a water feed pump (33) is arranged in the membrane-incorporated tank (1), and a treated water discharge pipe (35) is provided in each of the plurality of submerged flat membranes (2). The discharge pipe (35) is provided with a pressure gauge (36) and a suction pump (37).
【００１８】膜組込槽(1) の頂部において左右両側にそ
れぞれ前後方向に伸びる側枠部材(11)(12)が設けられて
いる。Side frame members (11) and (12) extending in the front-rear direction are provided on both the left and right sides at the top of the membrane assembly tank (1).
【００１９】左側の側枠部材(11)の上面には長さ方向に
前後動案内レール(13)が設けられ、また下面には長さ方
向にラック(14)が設けられている。左右一対の側枠部材
(11)(12)には可動ビーム(15)が架け渡され、同ビーム(1
5)の左端部下面には前後摺動片(16)が前後動案内レール
(13)の頭部を抱き込むように設けられている。また、可
動ビーム(15)の左端面にはＬ字状の左側支持片(17)が垂
下状に設けられ、同支持片(17)の水平部下面に第１モー
タ(18)が設けられている。第１モータ(18)の上方突状の
駆動軸にはピニオン(19)が取り付けられ、これが上記ラ
ック(14)と噛み合っている。A longitudinal guide rail (13) is provided on the upper surface of the left side frame member (11) in the longitudinal direction, and a rack (14) is provided on the lower surface in the longitudinal direction. Left and right pair of side frame members
A movable beam (15) is bridged over (11) and (12), and the same beam (1
On the lower surface of the left end of 5), the front and rear sliding pieces (16) are
It is provided so as to hold the head of (13). An L-shaped left side support piece (17) is provided on the left end surface of the movable beam (15) in a hanging shape, and a first motor (18) is provided on the lower surface of the horizontal portion of the support piece (17). There is. A pinion (19) is attached to the upper protruding drive shaft of the first motor (18) and meshes with the rack (14).
【００２０】また、可動ビーム(15)の右端面には右側支
持片(20)が設けられ、同支持片(20)の内面に上下一対の
転動ローラ(21)(22)が右側の側枠部材(12)を上下から挟
むように設けられている。A right side support piece (20) is provided on the right end surface of the movable beam (15), and a pair of upper and lower rolling rollers (21) (22) are provided on the right side of the inner surface of the support piece (20). The frame member (12) is provided so as to sandwich it from above and below.
【００２１】こうして、可動ビーム(15)は左右側枠部材
(11)(12)に支持され、かつその第１モータ(18)のピニオ
ン(19)と側枠部材(11)のラック(14)との噛合いによって
前後動自在になされている。Thus, the movable beam (15) is the left and right side frame members.
The pinions (19) of the first motor (18) and the racks (14) of the side frame members (11) are supported by (11) and (12), and can be moved back and forth.
【００２２】他方、可動ビーム(15)の前側面には長さ方
向にラック(23)が設けられ、後側面には長さ方向に左右
動案内レール(24)が設けられている。可動ビーム(15)の
上方には移動体(25)が配置され、その前側下端に第２モ
ータ(26)が設けられている。第２モータ(26)の後方突状
の駆動軸にはピニオン(27)が取り付けられ、これが上記
ラック(23)と噛み合っている。On the other hand, a rack (23) is provided in the longitudinal direction on the front side surface of the movable beam (15), and a left and right guide rail (24) is provided in the longitudinal direction on the rear side surface. The movable body (25) is arranged above the movable beam (15), and the second motor (26) is provided at the lower end on the front side thereof. A pinion (27) is attached to the rear projection drive shaft of the second motor (26), and this pinion (27) meshes with the rack (23).
【００２３】また、移動体(25)の後側下端にはその垂下
壁の前側面に左右摺動片(29)が左右動案内レール(24)の
頭部を抱き込むように設けられている。A left and right sliding piece (29) is provided at the lower end of the rear side of the moving body (25) on the front side surface of the hanging wall so as to embrace the head of the left and right guide rail (24). .
【００２４】こうして、移動体(25)は、その第２モータ
(26)のピニオン(27)とラック(23)との噛合い、および、
その左右摺動片(29)の左右動案内レール頭部抱込みによ
って、可動ビーム(15)に左右動自在に支持されている。
したがって、移動体(25)は、可動ビーム(15)が上記の如
く前後動自在であるので、結局前後方向および左右方向
に移動自在である。Thus, the moving body (25) has its second motor
The pinion (27) of (26) meshes with the rack (23), and
The left and right sliding pieces (29) are supported by the movable beam (15) so as to be able to move left and right by holding the left and right guide rail heads.
Therefore, since the movable beam (15) is movable back and forth as described above, the movable body (25) is eventually movable in the front-rear direction and the left-right direction.
【００２５】移動体(25)の後側面にはエアシリンダ(30)
が下向きに取り付けられ、そのシリンダロッドには第３
モータ(31)が設けられ、同モータ(31)の駆動軸には洗浄
ブラシ(32)がユニバーサルジョイント(4) を介して垂下
状に取り付けられている。An air cylinder (30) is provided on the rear side of the moving body (25).
Is mounted downwards and its cylinder rod has a third
A motor (31) is provided, and a cleaning brush (32) is attached to the drive shaft of the motor (31) in a hanging shape via a universal joint (4).
【００２６】こうして、洗浄ブラシ(32)は、可動ビーム
(15)の前後動、および移動体(25)の左右動によって、前
後および左右に移動自在になされ、かつ、エアシリンダ
(30)によって上下動自在になされ、第３モータ(31)で回
転するようになされている。Thus, the cleaning brush (32) is a movable beam.
The air cylinder can be moved back and forth and left and right by the back and forth movement of (15) and the left and right movement of the moving body (25).
It is movable up and down by (30) and is rotated by the third motor (31).
【００２７】つぎに、上記構成の洗浄装置を用いた膜洗
浄方法について説明する。Next, a film cleaning method using the cleaning apparatus having the above structure will be described.
【００２８】処理すべき排水は排水供給管(34)を経て、
活性汚泥１リットルを投入してある膜組込槽(1) に送り
込まれる。排水は、予めＴＯＣ（全有機炭素量）濃度を
５００ｍｇ／リットルに調製したものであり、排水の供
給流量は給水ポンプ(33)により３リットル／ｄに設定し
てある。この時のＴＯＣ容積負荷は、０．５５ｇ／リッ
トル・ｄ、水処理学的滞留時間は２１．６ｈである。ま
た、吸引ポンプ(37)の吸引流量は０〜４８０リットル／
ｄであり、圧力計(36)は０〜−１（ｋｇ／ｃｍ2 ）の範
囲で測定を行うものである。Wastewater to be treated passes through the wastewater supply pipe (34),
1 liter of activated sludge is sent to the membrane built-in tank (1). The waste water was prepared in advance to have a TOC (total organic carbon content) concentration of 500 mg / liter, and the supply flow rate of the waste water was set to 3 liter / d by the water supply pump (33). At this time, the TOC volumetric load was 0.55 g / liter · d, and the water treatment retention time was 21.6 h. The suction flow rate of the suction pump (37) is 0 to 480 liters /
d, and the pressure gauge (36) measures in the range of 0 to -1 (kg / cm 2 ).
【００２９】膜組込槽(1) では、排水が活性汚泥によっ
て生物学的に浄化処理され、処理水は吸引ポンプ(37)に
よって浸漬型平膜(2) を透過させられて同膜(2) の内部
へ入り、さらに吸引ポンプ(37)によって各浸漬型平膜
(2) の内部から処理水排出管(35)で系外へ送り出され
る。In the membrane-incorporating tank (1), the wastewater is biologically purified by activated sludge, and the treated water is permeated through the submerged flat membrane (2) by the suction pump (37) and the same membrane (2 ) Inside, and then by suction pump (37), each submerged flat membrane
It is sent out of the system through the treated water discharge pipe (35) from inside (2).
【００３０】上記排水処理がある時間続くと、膜にスラ
イムなどが付着し、膜の目詰まりにより水透過が困難に
なり、圧力計(36)で測定した膜透過水の吸引差圧が徐々
に上昇して来る。この吸引差圧がある設定値まで上がる
と、この吸引差圧をモニターしている中央制御装置（Ｃ
ＰＵ）がそれを感知し、第１モータ(18)、第２モータ(2
6)、第３モータ(31)およびエアシリンダ(30)に駆動信号
を発する。When the above wastewater treatment is continued for a certain period of time, slime or the like adheres to the membrane and clogging of the membrane makes water permeation difficult, and the suction differential pressure of the membrane permeate water measured by the pressure gauge (36) gradually increases. Come up. When this suction differential pressure rises to a certain set value, a central control unit (C
PU) senses it, and the first motor (18) and the second motor (2
6) The drive signal is sent to the third motor (31) and the air cylinder (30).
【００３１】洗浄ブラシ(32)は、上記構成の如く、第１
モータ(18)によって前後動自在になされ、第２モータ(2
6)によって左右動自在になされ、かつ、エアシリンダ(3
0)によって上下動自在になされているので、浸漬型平膜
(2) の前後両外面を左右および上下方向に、左右両側外
面を前後および上下方向に、それぞれ接触状態で移動
し、かつ洗浄ブラシ(32)は第３モータ(31)で回転するよ
うになされているので、上記のように各面に接触した状
態で回転し、外面全面を洗浄する。The cleaning brush (32) has the first structure as described above.
The motor (18) makes it possible to move back and forth, and the second motor (2
It can be moved to the left and right by 6) and the air cylinder (3
It can be moved up and down by (0), so it is an immersion type flat membrane.
The front and rear outer surfaces of (2) are moved in the left and right and up and down directions, and the left and right outer surfaces are moved in the front and back and up and down directions, respectively, and the cleaning brush (32) is rotated by the third motor (31). Therefore, as described above, the outer surface is washed by rotating while contacting each surface.
【００３２】上記のようにある１枚の膜が洗浄され、圧
力計(36)による吸引差圧が設定値まで下がると、洗浄ブ
ラシ(32)はつぎの膜に移動し、この膜について上記と同
じ操作を繰り返す。When one sheet of membrane is washed as described above and the suction differential pressure by the pressure gauge (36) falls to the set value, the washing brush (32) moves to the next membrane, and this membrane is the same as above. Repeat the operation.
【００３３】この実施例では、圧力計(36)で測定した吸
引差圧は、最大値０．２５ｋｇ／ｃｍ2 、最小値０．０
５ｋｇ／ｃｍ2 に設定されている。時間と吸引差圧の関
係を図３のグラフに示す。In this embodiment, the suction differential pressure measured by the pressure gauge (36) has a maximum value of 0.25 kg / cm 2 and a minimum value of 0.0
It is set to 5 kg / cm 2 . The relationship between time and suction differential pressure is shown in the graph of FIG.
【００３４】送水ポンプ(33)の稼働および停止、吸引ポ
ンプ(37)の稼働および停止、洗浄ブラシ(32)の位置決
め、膜洗浄の順序はいずれも予め決められており、ＣＰ
Ｕによって順次命令される。The order of operation and stop of the water supply pump (33), operation and stop of the suction pump (37), positioning of the cleaning brush (32), and membrane cleaning are all predetermined.
Sequentially ordered by U.
【００３５】こうして全部の膜の洗浄が終了した後、吸
引ポンプ(37)が稼働させられ、吸引差圧が設定値以下で
あれば、そのまま処理水の吸引が続けられる。これと同
時に、送水ポンプ(33)が稼働させられ、排水が槽内に送
り込まれる。After the cleaning of all the membranes is completed in this way, the suction pump (37) is operated, and if the suction differential pressure is equal to or lower than the set value, the suction of the treated water is continued. At the same time, the water supply pump (33) is operated and the waste water is sent into the tank.
【００３６】実施例２（各膜洗浄） 図４を参照して、この実施例では、処理水排出管(35)の
各分枝部(35a) にはそれぞれ流量計(38)および電磁弁(3
9)が設けられている。その他の構成は実施例１のものと
同じである。Embodiment 2 (Washing of Membranes) Referring to FIG. 4, in this embodiment, a flowmeter (38) and a solenoid valve (38) are provided in each branch portion (35a) of the treated water discharge pipe (35). 3
9) is provided. The other structure is the same as that of the first embodiment.
【００３７】上記構成では、排水処理がある時間続い
て、ある膜膜にスライムなどが付着し、その膜における
処理水の透過が困難になって来ると、この膜の処理水排
出管分枝部(35a) において流量計(38)で測定される流量
が低下する。この流量低下がある設定値まで下がると、
この流量をモニターしているＣＰＵがそれを感知し、第
１モータ(18)、第２モータ(26)、第３モータ(31)および
エアシリンダ(30)に駆動信号を発する。これと同時に、
ＣＰＵがその膜の電磁弁(39)を閉じ、洗浄ブラシ(32)を
洗浄位置へ移動し、その膜を洗浄させる。この洗浄の
間、その他の膜では排水処理が継続される。この膜の洗
浄終了後、ＣＰＵによって電磁弁(39)が開かれ、通常の
膜処理が行われる。In the above structure, when the wastewater treatment is continued for a certain period of time and slime or the like adheres to a certain membrane, and the permeation of the treated water through the membrane becomes difficult, the treated water discharge pipe branch portion of this membrane becomes. At (35a), the flow rate measured by the flow meter (38) decreases. When the flow rate drops to a set value,
The CPU monitoring this flow rate detects it and issues a drive signal to the first motor (18), the second motor (26), the third motor (31) and the air cylinder (30). At the same time,
The CPU closes the solenoid valve (39) of the film and moves the cleaning brush (32) to the cleaning position to clean the film. During this cleaning, wastewater treatment is continued for the other membranes. After the cleaning of the film is completed, the solenoid valve (39) is opened by the CPU and the normal film processing is performed.
【００３８】[0038]
【発明の効果】請求項１記載の膜洗浄方法によれば、膜
へのスライムなどの付着を常に所定値以下に抑え、膜透
過水の吸引差圧を所要値以下に保持して、排水処理を連
続的に行うことができる。According to the membrane cleaning method of the first aspect, the adhesion of slime or the like to the membrane is always suppressed to a predetermined value or less, and the suction differential pressure of the permeated water of the membrane is maintained to be the required value or less to perform wastewater treatment. Can be performed continuously.
【００３９】請求項２記載の膜洗浄装置によれば、洗浄
ブラシを膜全面に接触させた状態で移動させると同時に
回転させ、膜全面を洗浄することができる。According to the film cleaning apparatus of the second aspect, the cleaning brush can be moved while being in contact with the entire surface of the film and rotated at the same time to clean the entire surface of the film.
【００４０】請求項３記載の膜洗浄装置によれば、洗浄
ブラシを洗浄すべき膜面に接触させた状態で同ブラシを
回転させ、膜全面を洗浄することができると共に、膜透
過水の吸引差圧を所要値以下に保持して排水処理を連続
的に行うことができる。According to the membrane cleaning apparatus of the third aspect, the brush can be rotated while the cleaning brush is in contact with the surface of the membrane to be cleaned, and the entire surface of the membrane can be cleaned. Wastewater treatment can be performed continuously while maintaining the differential pressure below a required value.
【００４１】このように、本発明によって、別の洗浄槽
を設ける必要のないコンパクトな膜洗浄装置を提供する
ことができ、建設コスト、人件費などの軽減を達成する
ことができる。また、装置のメンテナンスが容易である
ので、ランニングコストも軽減することができる。As described above, according to the present invention, it is possible to provide a compact membrane cleaning apparatus which does not require a separate cleaning tank, and it is possible to reduce the construction cost and labor cost. In addition, since maintenance of the device is easy, running costs can be reduced.
【図１】実施例１の膜組込型水処理装置の垂直縦断面図
である。FIG. 1 is a vertical longitudinal sectional view of a membrane-incorporated water treatment device according to a first embodiment.
【図２】実施例１の膜組込型水処理装置の垂直横断面図
である。FIG. 2 is a vertical cross-sectional view of the membrane-incorporated water treatment device according to the first embodiment.
【図３】実施例による吸引差圧の経時変化を示すグラフ
である。FIG. 3 is a graph showing changes with time in suction differential pressure according to an example.
【図４】実施例２の膜組込型水処理装置の垂直横断面図
である。FIG. 4 is a vertical cross-sectional view of a membrane-incorporated water treatment device according to a second embodiment.
１：膜組込槽 ２：浸漬型平膜 15：可動ビーム 18：第１モータ 25：移動体 26：第２モータ 30：エアシリンダ 31：第３モータ 32：洗浄ブラシ 36：圧力計 37：吸引ポンプ 38：流量計 39：電磁弁 1: Membrane assembly tank 2: Immersion type flat membrane 15: Movable beam 18: First motor 25: Moving body 26: Second motor 30: Air cylinder 31: Third motor 32: Cleaning brush 36: Pressure gauge 37: Suction Pump 38: Flow meter 39: Solenoid valve
Claims (3)
の吸引差圧および／または吸引流量を検知し、上記吸引
差圧が設定値まで上がった場合および／または上記吸引
流量が設定値まで下がった場合に、膜洗浄装置に駆動信
号を与えて膜を洗浄させることを特徴とする、膜組込型
水処理装置の膜洗浄方法。1. In a membrane-incorporated water treatment device, a suction differential pressure and / or a suction flow rate of membrane permeated water is detected, and when the suction differential pressure rises to a set value and / or the suction flow rate is a set value. A method for cleaning a membrane in a membrane-incorporated water treatment device, characterized in that a drive signal is applied to the membrane cleaning device to clean the membrane when the temperature falls.
の頂部に前後方向および左右方向に移動自在に設けられ
た移動台と、該移動台に上下動自在に取付けられた洗浄
ブラシと、該洗浄ブラシを回転させる回転駆動装置とを
具備したことを特徴とする、膜組込型水処理装置の膜洗
浄装置。2. In a membrane-incorporated water treatment device, a movable table provided at the top of a membrane-incorporated tank so as to be movable in the front-rear direction and in the left-right direction, and a cleaning brush attached to the movable table so as to be vertically movable. And a rotation drive device for rotating the cleaning brush, the film cleaning device for a membrane-incorporated water treatment device.
らに、膜透過水の吸引差圧および／または吸引流量を検
知し、かつ上記吸引差圧が設定値まで上がった場合およ
び／または上記吸引流量が設定値まで下がった場合に、
請求項２記載の膜洗浄装置に駆動信号を与える中央制御
装置とを具備したことを特徴とする膜洗浄装置。3. The membrane cleaning apparatus according to claim 2, further detecting the suction differential pressure and / or the suction flow rate of the permeated water of the membrane, and when the suction differential pressure has risen to a set value and / or the suction. If the flow rate drops to the set value,
A central cleaning device for applying a drive signal to the film cleaning device according to claim 2, comprising a film cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7137595A JPH08323351A (en) | 1995-06-05 | 1995-06-05 | Method for cleaning membrane of membrane-incorporated water treating device and membrane cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7137595A JPH08323351A (en) | 1995-06-05 | 1995-06-05 | Method for cleaning membrane of membrane-incorporated water treating device and membrane cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08323351A true JPH08323351A (en) | 1996-12-10 |
Family
ID=15202381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7137595A Pending JPH08323351A (en) | 1995-06-05 | 1995-06-05 | Method for cleaning membrane of membrane-incorporated water treating device and membrane cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08323351A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012528717A (en) * | 2009-06-02 | 2012-11-15 | シーメンス インダストリー インコーポレイテッド | Membrane cleaning with pulsed gas slag and global aeration |
| WO2014171400A1 (en) * | 2013-04-17 | 2014-10-23 | 栗田工業株式会社 | Method and device for monitoring slime-adhesion status of water system |
| CN110130260A (en) * | 2019-06-14 | 2019-08-16 | 阿克苏浩瀚工程咨询有限公司 | A kind of construction site de-watering apparatus preventing blocking |
| CN113522034A (en) * | 2021-06-24 | 2021-10-22 | 合肥云雀智能科技有限公司 | Fault judging mechanism and ultrafiltration equipment based on same |
| CN113663525A (en) * | 2021-09-06 | 2021-11-19 | 青岛理工大学 | Mobile shearing film device capable of effectively controlling film pollution and control method |
| CN114832632A (en) * | 2022-04-25 | 2022-08-02 | 北京华宇辉煌生态环保科技股份有限公司 | Sewage dynamic membrane cleaning device |
-
1995
- 1995-06-05 JP JP7137595A patent/JPH08323351A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012528717A (en) * | 2009-06-02 | 2012-11-15 | シーメンス インダストリー インコーポレイテッド | Membrane cleaning with pulsed gas slag and global aeration |
| WO2014171400A1 (en) * | 2013-04-17 | 2014-10-23 | 栗田工業株式会社 | Method and device for monitoring slime-adhesion status of water system |
| CN110130260A (en) * | 2019-06-14 | 2019-08-16 | 阿克苏浩瀚工程咨询有限公司 | A kind of construction site de-watering apparatus preventing blocking |
| CN113522034A (en) * | 2021-06-24 | 2021-10-22 | 合肥云雀智能科技有限公司 | Fault judging mechanism and ultrafiltration equipment based on same |
| CN113663525A (en) * | 2021-09-06 | 2021-11-19 | 青岛理工大学 | Mobile shearing film device capable of effectively controlling film pollution and control method |
| CN114832632A (en) * | 2022-04-25 | 2022-08-02 | 北京华宇辉煌生态环保科技股份有限公司 | Sewage dynamic membrane cleaning device |
| CN114832632B (en) * | 2022-04-25 | 2023-08-15 | 北京华宇辉煌生态环保科技股份有限公司 | Sewage dynamic membrane cleaning device |
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