TW200514629A - Method for washing reverse osmosis membrane, and waste water recovering method using this method - Google Patents
Method for washing reverse osmosis membrane, and waste water recovering method using this methodInfo
- Publication number
- TW200514629A TW200514629A TW092130005A TW92130005A TW200514629A TW 200514629 A TW200514629 A TW 200514629A TW 092130005 A TW092130005 A TW 092130005A TW 92130005 A TW92130005 A TW 92130005A TW 200514629 A TW200514629 A TW 200514629A
- Authority
- TW
- Taiwan
- Prior art keywords
- reverse osmosis
- osmosis membrane
- waste water
- washing
- membrane
- Prior art date
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
To prolong the service life of a membrane through a significant improvement in washing effect and, at the same time, to eliminate a troublesome process and cost involved in extension of other filtration means by providing a rapid and effective method for washing a reverse osmosis membrane. The method for washing the reverse osmosis membrane comprises the steps of: feeding a chemical into a reverse osmosis membrane 120; allowing the reverse osmosis membrane 120 containing the chemical to stand; conducting flushing the reverse osmosis membrane 120 at a low pressure and then at a high pressure; and causing a microvibrating phenomenon of the reverse osmosis membrane 120 while maintaining the high pressure state. A method for recovering waste water comprises the steps of: introducing process waste water 10 discharged from a filtration device 100 into the reverse osmosis membrane 120 treated by the method for washing the reverse osmosis membrane; and introducing recovered water, obtained by filtering the process waste water 10 through the filtration device 100 and the reverse osmosis membrane 120, into a product water column.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW92130005A TWI239872B (en) | 2003-10-29 | 2003-10-29 | Method for washing reverse osmosis membrane, and waste water recovering method using this method |
JP2004154708A JP4180019B2 (en) | 2003-10-29 | 2004-05-25 | Reverse osmosis membrane cleaning method and wastewater recovery method using this method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW92130005A TWI239872B (en) | 2003-10-29 | 2003-10-29 | Method for washing reverse osmosis membrane, and waste water recovering method using this method |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200514629A true TW200514629A (en) | 2005-05-01 |
TWI239872B TWI239872B (en) | 2005-09-21 |
Family
ID=34651789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW92130005A TWI239872B (en) | 2003-10-29 | 2003-10-29 | Method for washing reverse osmosis membrane, and waste water recovering method using this method |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4180019B2 (en) |
TW (1) | TWI239872B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007196158A (en) * | 2006-01-27 | 2007-08-09 | Kurita Water Ind Ltd | Membrane module washing method for membrane separation for fe-, cr-, and resist-containing water |
JP2007245051A (en) * | 2006-03-17 | 2007-09-27 | Fuji Electric Holdings Co Ltd | Method of cleaning filter membrane |
JP6105220B2 (en) * | 2011-07-12 | 2017-03-29 | 高砂熱学工業株式会社 | Treatment method of flushing waste water from piping system of equipment with galvanized steel pipes |
CN105688680B (en) * | 2016-04-08 | 2018-08-14 | 北京今大禹环境技术股份有限公司 | A kind of cleaning method of reverse-osmosis membrane element |
JP2021065845A (en) * | 2019-10-24 | 2021-04-30 | 栗田工業株式会社 | Wastewater recovery system |
CN111562351B (en) * | 2020-05-28 | 2022-11-22 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Automatic monitoring device and method for water quality pollution index of reverse osmosis equipment inlet water |
-
2003
- 2003-10-29 TW TW92130005A patent/TWI239872B/en not_active IP Right Cessation
-
2004
- 2004-05-25 JP JP2004154708A patent/JP4180019B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP4180019B2 (en) | 2008-11-12 |
TWI239872B (en) | 2005-09-21 |
JP2005131630A (en) | 2005-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |