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JPS55162391A - Membran filtering method - Google Patents

Membran filtering method

Info

Publication number
JPS55162391A
JPS55162391A JP7037079A JP7037079A JPS55162391A JP S55162391 A JPS55162391 A JP S55162391A JP 7037079 A JP7037079 A JP 7037079A JP 7037079 A JP7037079 A JP 7037079A JP S55162391 A JPS55162391 A JP S55162391A
Authority
JP
Japan
Prior art keywords
membrane
inflow water
scale
membran
voltage
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
JP7037079A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Katagai
Katsuhiko Hojo
Akira Kitamura
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.)
Resonac Corp
Original Assignee
Hitachi Chemical 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP7037079A priority Critical patent/JPS55162391A/en
Publication of JPS55162391A publication Critical patent/JPS55162391A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To detach the scale formed on a surface of a filter membrane or prevent the scale from being formed by applying electrostatic voltage to inflow water of a membrane filtering procedure preliminarily.
CONSTITUTION: Inflow water 2 is supplied to an electrostatic voltage applying apparatus 3 by a pressure pump 1 and, herein, passed through a space formed between a negative outer cylinder and a positive inner cylinder to which electric voltage is applied from an electric source 4 to change an ion structure of mineral components in the inflow water. Subsequently, said inflow water is entered into a tubular module 5 of a reverse osmosis membrane or an ultrafilter membrane and separated into a permeate 6 and a concentrate 7. Thereby, scale components generally deposited and formed on a membrane surface are not subjected to the concn. on a membran surface and apt to be precipitated out or the releasing and detaching are carried out gradually against an already scale deposited membrane. To the positive inner electrode, electric voltage of 20W5,000V is applied corresponding to the dissolved salt concn, within the inflow water.
COPYRIGHT: (C)1980,JPO&Japio
JP7037079A 1979-06-04 1979-06-04 Membran filtering method Pending JPS55162391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7037079A JPS55162391A (en) 1979-06-04 1979-06-04 Membran filtering method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7037079A JPS55162391A (en) 1979-06-04 1979-06-04 Membran filtering method

Publications (1)

Publication Number Publication Date
JPS55162391A true JPS55162391A (en) 1980-12-17

Family

ID=13429475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7037079A Pending JPS55162391A (en) 1979-06-04 1979-06-04 Membran filtering method

Country Status (1)

Country Link
JP (1) JPS55162391A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013059732A (en) * 2011-09-14 2013-04-04 Toshiba Corp Water treatment system using reverse osmosis membrane
JP2016155098A (en) * 2015-02-25 2016-09-01 三菱化学株式会社 Separation membrane module
CN106277476A (en) * 2016-10-11 2017-01-04 湛江电力有限公司 A kind of processing system of municipal middle water reuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013059732A (en) * 2011-09-14 2013-04-04 Toshiba Corp Water treatment system using reverse osmosis membrane
JP2016155098A (en) * 2015-02-25 2016-09-01 三菱化学株式会社 Separation membrane module
CN106277476A (en) * 2016-10-11 2017-01-04 湛江电力有限公司 A kind of processing system of municipal middle water reuse

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