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JPS5624005A - Washing article for tubular membrane - Google Patents

Washing article for tubular membrane

Info

Publication number
JPS5624005A
JPS5624005A JP9960279A JP9960279A JPS5624005A JP S5624005 A JPS5624005 A JP S5624005A JP 9960279 A JP9960279 A JP 9960279A JP 9960279 A JP9960279 A JP 9960279A JP S5624005 A JPS5624005 A JP S5624005A
Authority
JP
Japan
Prior art keywords
washing
article
molded article
tubular membrane
washing article
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
Application number
JP9960279A
Other languages
Japanese (ja)
Inventor
Katsuji Matsuzaki
Atsushi Iwabuchi
Kazushige Okauchi
Chota Yanagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KANEBO GOSEI KAGAKU
Kanebo Ltd
Kobe Steel Ltd
Kanebo Kasei KK
Original Assignee
KANEBO GOSEI KAGAKU
Kanebo Ltd
Kobe Steel Ltd
Kanebo Kasei KK
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 KANEBO GOSEI KAGAKU, Kanebo Ltd, Kobe Steel Ltd, Kanebo Kasei KK filed Critical KANEBO GOSEI KAGAKU
Priority to JP9960279A priority Critical patent/JPS5624005A/en
Publication of JPS5624005A publication Critical patent/JPS5624005A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To reduce the damage of an inner surface of a pipe to be washed as well as to impart excellent durability to a washing article by using a molded article of of polyvinyl formal sponge with specified resilience as a washing article.
CONSTITUTION: As the washing article of substances adhering to an inner surface of a tubular membrance used in reverse osmosis or ultrafiltration, a molded article of polyvinyl formal sponge with resilience of 30% or more and a formylation degree of about 55W75mol% is used. Because this molded article is excellent in chemical resistance and durability and has little danger of damaging a surface of a tubular membrane, the washing can be carried out well over a prolonged period.
COPYRIGHT: (C)1981,JPO&Japio
JP9960279A 1979-08-03 1979-08-03 Washing article for tubular membrane Pending JPS5624005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9960279A JPS5624005A (en) 1979-08-03 1979-08-03 Washing article for tubular membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9960279A JPS5624005A (en) 1979-08-03 1979-08-03 Washing article for tubular membrane

Publications (1)

Publication Number Publication Date
JPS5624005A true JPS5624005A (en) 1981-03-07

Family

ID=14251633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9960279A Pending JPS5624005A (en) 1979-08-03 1979-08-03 Washing article for tubular membrane

Country Status (1)

Country Link
JP (1) JPS5624005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006090469A1 (en) * 2005-02-25 2006-08-31 Ngk Insulators, Ltd. Method of cleaning membrane in membrane separation activated-sludge process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006090469A1 (en) * 2005-02-25 2006-08-31 Ngk Insulators, Ltd. Method of cleaning membrane in membrane separation activated-sludge process
US7422689B2 (en) 2005-02-25 2008-09-09 Ngk Insulators, Ltd. Membrane-cleaning method for membrane bioreactor process

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