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JPS5621615A - Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device - Google Patents

Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device

Info

Publication number
JPS5621615A
JPS5621615A JP9518379A JP9518379A JPS5621615A JP S5621615 A JPS5621615 A JP S5621615A JP 9518379 A JP9518379 A JP 9518379A JP 9518379 A JP9518379 A JP 9518379A JP S5621615 A JPS5621615 A JP S5621615A
Authority
JP
Japan
Prior art keywords
membrane
liquid
type ultrafiltration
gel layer
compressed air
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
JP9518379A
Other languages
Japanese (ja)
Inventor
Tomohiro Akiyama
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.)
Iwai Kikai Kogyo Co Ltd
Original Assignee
Iwai Kikai Kogyo Co Ltd
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 Iwai Kikai Kogyo Co Ltd filed Critical Iwai Kikai Kogyo Co Ltd
Priority to JP9518379A priority Critical patent/JPS5621615A/en
Publication of JPS5621615A publication Critical patent/JPS5621615A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To prevent the formation of the gel layer on the surface of the membrane and keep the filtration capability of the filter device for a long period of time by strikingly applying a liquid to be supplied in which compressed air or a gas, e.g., CO2, N2, etc., is mixed in fine pubbles onto the surface of the membrane of the flat membrane type ultrafiltration device being operated.
CONSTITUTION: A liquid to be treated is introduced from a liquid supply inlet 4, passed through the prefilter 2 by the pump P, and then directed to the flat membrane type ultrafiltration device 1, and at the same time compressed air is sent into the device 1 from the compressed air supply inlet 7 and mixed in the liquid in the form of bubbles through the inlet 4. In this case, when the liquid for which oxidation must be avoided is treated, CO2 or N2 gas is mixed instead of the compressed air. By strikingly applying the bubbles of the gas onto the surface of the membrane of the flat membrane type ultrafiltration device 1 all the time, the lowering of the filtering capability of the device due to the formation of gel layer of condensates on the surface of the membrane can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP9518379A 1979-07-26 1979-07-26 Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device Pending JPS5621615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9518379A JPS5621615A (en) 1979-07-26 1979-07-26 Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9518379A JPS5621615A (en) 1979-07-26 1979-07-26 Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device

Publications (1)

Publication Number Publication Date
JPS5621615A true JPS5621615A (en) 1981-02-28

Family

ID=14130630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9518379A Pending JPS5621615A (en) 1979-07-26 1979-07-26 Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device

Country Status (1)

Country Link
JP (1) JPS5621615A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63104609A (en) * 1986-10-20 1988-05-10 Akua Runesansu Gijutsu Kenkyu Kumiai Method and device for treating membrane
JP2011062632A (en) * 2009-09-16 2011-03-31 Kobelco Eco-Solutions Co Ltd Method and apparatus for treating water using fine air bubbles
JP2016016397A (en) * 2014-07-11 2016-02-01 水ｉｎｇ株式会社 Filtration membrane cleaning method and membrane filtration apparatus
CN105536542A (en) * 2015-12-14 2016-05-04 广东创源节能环保有限公司 Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109178A (en) * 1974-02-07 1975-08-28
JPS5113389A (en) * 1974-07-24 1976-02-02 Ebara Infilco Shintomakuhonyoru bunrihoho
JPS5190984A (en) * 1975-02-04 1976-08-10 Gyakushintokinoyona makubunrikyojidofuratsushingushisutemu

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109178A (en) * 1974-02-07 1975-08-28
JPS5113389A (en) * 1974-07-24 1976-02-02 Ebara Infilco Shintomakuhonyoru bunrihoho
JPS5190984A (en) * 1975-02-04 1976-08-10 Gyakushintokinoyona makubunrikyojidofuratsushingushisutemu

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63104609A (en) * 1986-10-20 1988-05-10 Akua Runesansu Gijutsu Kenkyu Kumiai Method and device for treating membrane
JPH0580247B2 (en) * 1986-10-20 1993-11-08 Toto Ltd
JP2011062632A (en) * 2009-09-16 2011-03-31 Kobelco Eco-Solutions Co Ltd Method and apparatus for treating water using fine air bubbles
JP2016016397A (en) * 2014-07-11 2016-02-01 水ｉｎｇ株式会社 Filtration membrane cleaning method and membrane filtration apparatus
CN105536542A (en) * 2015-12-14 2016-05-04 广东创源节能环保有限公司 Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus

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