JPS5771607A - Cleaning of osmotic membrane - Google Patents
Cleaning of osmotic membraneInfo
- Publication number
- JPS5771607A JPS5771607A JP14870680A JP14870680A JPS5771607A JP S5771607 A JPS5771607 A JP S5771607A JP 14870680 A JP14870680 A JP 14870680A JP 14870680 A JP14870680 A JP 14870680A JP S5771607 A JPS5771607 A JP S5771607A
- Authority
- JP
- Japan
- Prior art keywords
- water
- osmotic membrane
- flashed
- dipped
- cleaning
- 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
PURPOSE: To raise the efficiency of cleaning of osmotic membrane by a method in which the osmotic membrane is dipped in water, flashed by pressurized water, washed with an aqueous sodium hypochlorite solution, again flashed by pressurized water, again dipped in water, and lastly washed with a surfactant solution.
CONSTITUTION: In cleaning foulness caused by impurities in water on an osmotic membrane of cellulose acetate, etc., when being used for the manufacture of pure water, the osmotic membrane is dipped in water for 20hr or more, flashed by a pressurized water of 2W4kg/cm2, and then washed with a 10W30% sodium hypochlorite aqueous solution. Again, the osmotic membrane is flashed by the pressurized water, dipped in water for 20hr or more, and then washed with a surfactant solution. Thus, as well as inorganics, e.g., Fe, Ca, SiO2, etc., foulness caused by water organisms, e.g., moss, etc., can be cleaned with high cleaning efficiency.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14870680A JPS5771607A (en) | 1980-10-23 | 1980-10-23 | Cleaning of osmotic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14870680A JPS5771607A (en) | 1980-10-23 | 1980-10-23 | Cleaning of osmotic membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771607A true JPS5771607A (en) | 1982-05-04 |
Family
ID=15458768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14870680A Pending JPS5771607A (en) | 1980-10-23 | 1980-10-23 | Cleaning of osmotic membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771607A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141375A (en) * | 1994-11-22 | 1996-06-04 | Daicel Chem Ind Ltd | Cleaning method for filtration film module |
| CN107511081A (en) * | 2017-10-13 | 2017-12-26 | 中国科学院生态环境研究中心 | A kind of preparation method of antipollution PTFE CA/SiNPs composite membranes |
| CN107737529A (en) * | 2017-10-13 | 2018-02-27 | 中国科学院生态环境研究中心 | A kind of preparation method of super-hydrophobic oleophobic composite membrane |
| CN110624419A (en) * | 2019-11-04 | 2019-12-31 | 山东鲁东环保科技有限公司 | Reverse osmosis membrane environment-friendly recycling method |
-
1980
- 1980-10-23 JP JP14870680A patent/JPS5771607A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141375A (en) * | 1994-11-22 | 1996-06-04 | Daicel Chem Ind Ltd | Cleaning method for filtration film module |
| CN107511081A (en) * | 2017-10-13 | 2017-12-26 | 中国科学院生态环境研究中心 | A kind of preparation method of antipollution PTFE CA/SiNPs composite membranes |
| CN107737529A (en) * | 2017-10-13 | 2018-02-27 | 中国科学院生态环境研究中心 | A kind of preparation method of super-hydrophobic oleophobic composite membrane |
| CN107737529B (en) * | 2017-10-13 | 2021-06-01 | 中国科学院生态环境研究中心 | A kind of preparation method of superhydrophobic and oleophobic composite membrane |
| CN110624419A (en) * | 2019-11-04 | 2019-12-31 | 山东鲁东环保科技有限公司 | Reverse osmosis membrane environment-friendly recycling method |
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