JPS5667504A - Repairing method of membrane for separation - Google Patents
Repairing method of membrane for separationInfo
- Publication number
- JPS5667504A JPS5667504A JP14477079A JP14477079A JPS5667504A JP S5667504 A JPS5667504 A JP S5667504A JP 14477079 A JP14477079 A JP 14477079A JP 14477079 A JP14477079 A JP 14477079A JP S5667504 A JPS5667504 A JP S5667504A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- filter
- compatibility
- cellulose acetate
- repair
- 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
PURPOSE: To easily repair the damaged parts of the filter membrane set to a module simply by coating a liquid material of specific temp. having compatibility and plasticizing action upon cellulose acetate etc. used as a separating membrane on the defect part.
CONSTITUTION: A liquid meterial of ≥70°C having compatibility and plasticizing action to a cellulose acetate- or acrylonitrile copolymer used as a separating membrane is coated on the defect part and its peripheral part by means of a writing brush, brush, or the like, and is made smooth in appearance, after which the membrane is left standing. This makes the loss of the filter effective area slight and enables the filter characteristic to be recovered nearly to a normal value. Particularly this is effective for repair and restoration of small defects that are found after the membrane have been set in the module.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14477079A JPS5667504A (en) | 1979-11-08 | 1979-11-08 | Repairing method of membrane for separation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14477079A JPS5667504A (en) | 1979-11-08 | 1979-11-08 | Repairing method of membrane for separation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5667504A true JPS5667504A (en) | 1981-06-06 |
JPS618723B2 JPS618723B2 (en) | 1986-03-17 |
Family
ID=15370006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14477079A Granted JPS5667504A (en) | 1979-11-08 | 1979-11-08 | Repairing method of membrane for separation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667504A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2243543A1 (en) | 2004-10-18 | 2010-10-27 | Kurita Water Industries Ltd. | Agent for increasing rejection with a permeable membrane, process for increasing the rejection, permeable membrane and process for water treatment |
JP2021512784A (en) * | 2018-05-10 | 2021-05-20 | エルジー・ケム・リミテッド | Reverse osmosis membrane, its manufacturing method and water treatment module |
-
1979
- 1979-11-08 JP JP14477079A patent/JPS5667504A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2243543A1 (en) | 2004-10-18 | 2010-10-27 | Kurita Water Industries Ltd. | Agent for increasing rejection with a permeable membrane, process for increasing the rejection, permeable membrane and process for water treatment |
US8025159B2 (en) | 2004-10-18 | 2011-09-27 | Kurita Water Industries Ltd. | Agent for increasing rejection with a permeable membrane, process for increasing the rejection, permeable membrane and process for water treatment |
JP2021512784A (en) * | 2018-05-10 | 2021-05-20 | エルジー・ケム・リミテッド | Reverse osmosis membrane, its manufacturing method and water treatment module |
Also Published As
Publication number | Publication date |
---|---|
JPS618723B2 (en) | 1986-03-17 |
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