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 method

Info

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
Application number
TW092130005A
Other languages
Chinese (zh)
Other versions
TWI239872B (en
Inventor
Kai-Yi Liu
Qua-Lin Chen
Kuo-Min Hsu
Original Assignee
Winbond Electronics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Winbond Electronics Corp filed Critical Winbond Electronics Corp
Priority to TW92130005A priority Critical patent/TWI239872B/en
Priority to JP2004154708A priority patent/JP4180019B2/en
Publication of TW200514629A publication Critical patent/TW200514629A/en
Application granted granted Critical
Publication of TWI239872B publication Critical patent/TWI239872B/en

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  • 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.
TW92130005A 2003-10-29 2003-10-29 Method for washing reverse osmosis membrane, and waste water recovering method using this method TWI239872B (en)

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)

* Cited by examiner, † Cited by third party
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

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

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MM4A Annulment or lapse of patent due to non-payment of fees