JPH0351456B2 - - Google Patents
Info
- Publication number
- JPH0351456B2 JPH0351456B2 JP59019994A JP1999484A JPH0351456B2 JP H0351456 B2 JPH0351456 B2 JP H0351456B2 JP 59019994 A JP59019994 A JP 59019994A JP 1999484 A JP1999484 A JP 1999484A JP H0351456 B2 JPH0351456 B2 JP H0351456B2
- Authority
- JP
- Japan
- Prior art keywords
- membrane filter
- sample
- passage
- sample water
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Filtration Of Liquid (AREA)
Description
〔発明の利用分野〕
本発明は、メンブランフイルタを使用して、試
料液中の微粒子を除去する過装置に係り、特に
長時間連続使用可能にした過装置に関する。
〔発明の背景〕
試料液、たとえば上水、イオン交換水等に含ま
れる微粒子を除去するため、過材としてメンブ
ランフイルタを使用した過装置が提案されてい
る。このような過装置においては、過装置の
使用時間に比例してメンブランフイルタが目詰り
を起し、過流速が低下する。そして、過流速
が一定の値以下になると、過装置を分解してメ
ンブランフイルタを交換する。
したがつて、このような過装置において、試
料水を連続的に過し、その過水を水質検査装
置等へ連続的に供給する場合、メンブランフイル
タの交換周期（試料水に含まれる微粒子の量と、
要求される過流速によつて定まる）が短くな
り、過装置の保守が繁雑になるだけでなく、経
済性の面でも好ましくない欠点がある。
〔発明の目的〕
本発明の目的は、上記した従来技術の欠点をな
くし、長期間連続使用可能な過装置を提供する
にある。
〔発明の概要〕
前記目的を達成するため、本発明においては、
目詰りしたメンブランフイルタも、その表面に堆
積したケーキを取除くことにより、初期の過流
速に比べ大巾な低下があるにしても、過流速が
回復しメンブランフイルタの再生が可能であり、
かつその後のくり返し再生における過流速の回
復率が大きいことを実験で確認し、過装置の試
料水側に、メンブランフイルタに所定の圧力で接
する軟質弾性体を備えた払拭手段を設け、メンブ
ランフイルタに堆積したケーキを随時、あるいは
定期的に除去するようにしたことを特徴とする。
〔発明の実施例〕
以下、本発明の一実施例を図面にしたがつて説
明する。
図は、本発明の一実施例を示すもので、試料水
の供給口１と排水口２および過水の取手口３が
形成された本体４は、保持体５および保持体５に
保持されたメンブランフイルタ６によつて、試料
水の通路７と過水の通路８に仕切られている。
前記メンブランフイルタ６の上には、回転体９か
ら突出する一対のアーム１０に外嵌指示され、メ
ンブランフイルタ６に所定の圧力で接する筒状の
洗浄体１１からなる払拭手段が配置されている。
前記本体４の下には、前記回転体９に回転力を与
えるためのマグネチツク・スターラ１２が配置さ
れ、コントローラ１３の指令によつて作動する。
試料水の取水口１４に配置されたポンプ１５によ
つて供給口１に送り込まれた試料水は、メンブラ
ンフイルタ６に接する通路７、排水口２および
過圧調整用の弁１６を通り排出口１７から排出さ
れる。メンブランフイルタ６によつて過され通
路８に出た過水は、配管１８によつて検査、測
定のため、所定の位置へ導びかれる。
このような構成であるから、試料水を過して
いる間に、コントローラ１３の指命によつてマグ
ネチツク・スターラ１２が作動すると、回転体９
が回転し、洗浄体１１がメンブランフイルタ６の
表面に堆積したケーキを払拭する。すると、メン
ブランフイルタ６から剥離されたケーキは、試料
水と共に排出口２から排出される。回転体９が一
定時間回転すると、コントローラ１３の指令によ
つてマグネチツク・スターラが停止し、回転体９
も止まる。このようにして、メンブランフイルタ
６を再生している間も、試料水の過は行なわれ
る。
なお、前記洗浄体１１は、たとえばスポンジ等
のような軟質弾性体を用いる。
また、前記メンブランフイルタ６の孔径は、
0.05〜1μｍ適当であり、更に0.2〜0.4μｍの範囲の
ものが最も好ましい。何故なら、孔径が1μｍ以
上の場合には、試料水中の微粒子がメンブランフ
イルタ６の内部まで入り込んで、過流速の低下
が早くなるだけでなく、表面のケーキを払拭した
ときの再生率が低くなり、長期間の使用に耐えら
れない。また、孔径が0.05μｍ以下になると、メ
ンブランフイルタ６が半透膜になり、試料水中の
イオンや溶解高分子有機物まで除去することにな
り、試料水と過水の液組成が変化してしまうた
め、試料水の正確な検査、測定が行なえなくな
る。
前記実施例に示す過装置を用い、上水および
イオン交換水を試料水として、次の条件で実験を
行なつた。
メンブランフイルタは、孔径が0.22μｍのもの
と0.45μｍのもので、各過表面面積７／cm2、
過圧１Kg／cm2、過時間は連続300時間、フイル
タの再生は10分間隔で、１回に30秒ずつ払拭手段
を回転させる。なお、メンブランフイルタは使用
開始後急激に過流速が低下するため、使用開始
後10時間目の過流速を初期過流速とした。
実験の結果は下表の通りである。
[Field of Application of the Invention] The present invention relates to a filtration device that uses a membrane filter to remove particulates from a sample liquid, and particularly relates to a filtration device that can be used continuously for a long period of time. [Background of the Invention] A filtration device using a membrane filter as a filtration material has been proposed in order to remove particulates contained in a sample liquid, such as tap water or ion-exchanged water. In such a filtration device, the membrane filter becomes clogged in proportion to the usage time of the filtration device, and the filtration rate decreases. When the overflow rate falls below a certain value, the overflow device is disassembled and the membrane filter is replaced. Therefore, when using such a filtration device to continuously pass sample water and continuously supply the filtrated water to a water quality testing device, etc., the membrane filter replacement cycle (the amount of fine particles contained in the sample water) and,
(determined by the required overflow rate), which not only makes maintenance of the overflow device complicated, but also has disadvantages that are unfavorable from an economic point of view. [Object of the Invention] An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide a filtering device that can be used continuously for a long period of time. [Summary of the invention] In order to achieve the above object, the present invention includes the following:
By removing the cake deposited on the surface of a clogged membrane filter, the overflow speed can be restored and the membrane filter can be regenerated, even if the overflow speed is significantly lower than the initial overflow speed.
Moreover, it was confirmed through experiments that the recovery rate of excessive flow rate during subsequent repeated regeneration was high, and a wiping means equipped with a soft elastic body that contacts the membrane filter at a predetermined pressure was installed on the sample water side of the filtration device. The present invention is characterized in that the accumulated cake is removed at any time or periodically. [Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. The figure shows an embodiment of the present invention, in which a main body 4, in which a sample water supply port 1, a drain port 2, and a water handle port 3 are formed, is held by a holder 5 and a holder 5. A membrane filter 6 separates the sample water passage 7 and the overwater passage 8.
Disposed above the membrane filter 6 is a wiping means consisting of a cylindrical cleaning body 11 that is fitted onto a pair of arms 10 protruding from the rotating body 9 and contacts the membrane filter 6 with a predetermined pressure.
A magnetic stirrer 12 is disposed below the main body 4 for applying rotational force to the rotating body 9, and is operated by a command from a controller 13.
The sample water sent into the supply port 1 by the pump 15 disposed at the sample water intake port 14 passes through the passage 7 in contact with the membrane filter 6, the drain port 2, and the overpressure adjustment valve 16, and then reaches the discharge port 17. is discharged from. The excess water that has passed through the membrane filter 6 and exited into the passage 8 is guided by a pipe 18 to a predetermined position for inspection and measurement. With such a configuration, when the magnetic stirrer 12 is operated according to an instruction from the controller 13 while the sample water is being passed through, the rotating body 9 is activated.
rotates, and the cleaning body 11 wipes off the cake deposited on the surface of the membrane filter 6. Then, the cake peeled off from the membrane filter 6 is discharged from the discharge port 2 together with the sample water. When the rotating body 9 rotates for a certain period of time, the magnetic stirrer stops according to a command from the controller 13, and the rotating body 9
It also stops. In this way, the sample water is filtered even while the membrane filter 6 is being regenerated. Note that the cleaning body 11 is made of a soft elastic body such as a sponge. Moreover, the pore diameter of the membrane filter 6 is
A suitable thickness is 0.05 to 1 μm, and most preferably a range of 0.2 to 0.4 μm. This is because if the pore size is 1 μm or more, fine particles in the sample water will enter the membrane filter 6, which will not only cause the overflow rate to decrease quickly but also reduce the regeneration rate when the surface cake is wiped away. , cannot withstand long-term use. In addition, when the pore size becomes 0.05 μm or less, the membrane filter 6 becomes a semi-permeable membrane, which removes even ions and dissolved polymeric organic substances in the sample water, which changes the liquid composition of the sample water and perwater. , it becomes impossible to accurately test and measure sample water. Using the filtration apparatus shown in the above example, an experiment was conducted under the following conditions using tap water and ion-exchanged water as sample water. The membrane filters have pore diameters of 0.22 μm and 0.45 μm, each with a surface area of 7/cm 2 ,
The overpressure was 1 Kg/cm 2 , the overtime was 300 hours continuously, the filter was regenerated at 10 minute intervals, and the wiping means was rotated for 30 seconds at a time. In addition, since the overflow rate of the membrane filter decreases rapidly after the start of use, the overflow rate 10 hours after the start of use was defined as the initial overflow rate. The results of the experiment are shown in the table below.
以上述べた如く、本発明によれば、メンブラン
フイルタに堆積した微粒子のケーキを払拭手段に
より除去するようにしたので、メンブランフイル
タを用いた過装置の長時間連続使用が可能にな
つた。また、試料液中の微粒子を完全に除去する
ことが可能になるなどの効果がある。
As described above, according to the present invention, since the cake of fine particles deposited on the membrane filter is removed by the wiping means, the filter apparatus using the membrane filter can be used continuously for a long time. Further, there are effects such as making it possible to completely remove fine particles in the sample liquid.
図は、本発明による過装置の一実施例を示す
構成図である。
１……供給口、２……排水口、３……取出口、
４……本体、６……メンブランフイルタ、７，８
……通路、９……回転体、１０……アーム、１１
……洗浄体、１２……マグネチツク・スターラ。
FIG. 1 is a configuration diagram showing an embodiment of a filtering device according to the present invention. 1... Supply port, 2... Drain port, 3... Outlet port,
4... Main body, 6... Membrane filter, 7, 8
...Passway, 9...Rotating body, 10...Arm, 11
...Cleansed body, 12... Magnetic Stara.
Claims (1)
口および過液の取出口を形成した本体の内部
に、試料液の通路と過液の通路を仕切る円盤状
のメンブランフイルタを設置して成る過装置に
おいて、所定の間隔で突出する複数のアームに、
前記メンブランフイルタの試料液面側に所定の圧
力で接する軟質弾性体を備えた払拭手段と、この
払拭手段に回動力を付与する駆動手段とを設けた
ことを特徴とする過装置。1 A disc-shaped membrane filter is installed inside the main body of the cylindrical sealed container, which has a supply inlet and outlet for the sample solution, and an outlet for the excess liquid, to separate the passage for the sample liquid and the passage for the excess liquid. In a device consisting of a plurality of arms protruding at predetermined intervals,
A filtration device comprising: a wiping means including a soft elastic body that contacts the sample liquid surface side of the membrane filter with a predetermined pressure; and a driving means for applying rotational force to the wiping means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59019994A JPS60166014A (en) | 1984-02-08 | 1984-02-08 | Filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59019994A JPS60166014A (en) | 1984-02-08 | 1984-02-08 | Filtration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60166014A JPS60166014A (en) | 1985-08-29 |
| JPH0351456B2 true JPH0351456B2 (en) | 1991-08-06 |
Family
ID=12014712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59019994A Granted JPS60166014A (en) | 1984-02-08 | 1984-02-08 | Filtration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60166014A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE451429B (en) * | 1986-01-20 | 1987-10-12 | Asea Atom Ab | SET TO REGENATE A SEPARATION DEVICE FOR A LIQUID MEDIUM CONTAINING UNLOSTED INGREDIENTS |
| JPH0614807B2 (en) * | 1986-12-25 | 1994-03-02 | 株式会社クボタ | Lifting control device for ground work equipment |
| EP0438595A4 (en) * | 1989-07-12 | 1992-01-08 | Michiro Sibasaki | Jig and device for filtration |
| US8840849B2 (en) | 2004-06-01 | 2014-09-23 | Pion, Inc. | Permeation device and method for reducing aqueous boundary layer thicknesses |
| ATE533835T1 (en) * | 2007-03-05 | 2011-12-15 | Krones Ag | BEER FILTER |
| JP2008221058A (en) * | 2007-03-09 | 2008-09-25 | Metawater Co Ltd | Separation and concentration equipment for underwater microorganisms |
| EP2078556A3 (en) * | 2008-01-14 | 2009-08-19 | PS Prozesstechnik GmbH | Method and device for separating product mixtures |
| JP2009213402A (en) * | 2008-03-11 | 2009-09-24 | Metawater Co Ltd | Method for concentrating microorganism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243784A (en) * | 1975-10-02 | 1977-04-06 | Ebara Infilco Co Ltd | Water-making unit |
| JPS52133239U (en) * | 1976-04-06 | 1977-10-11 | ||
| JPS5334168A (en) * | 1976-09-13 | 1978-03-30 | Tomoegawa Paper Co Ltd | Stirrer |
-
1984
- 1984-02-08 JP JP59019994A patent/JPS60166014A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60166014A (en) | 1985-08-29 |
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