JPS56111006A - Method for utilization of back pressure in membrane separating process - Google Patents

Method for utilization of back pressure in membrane separating process

Info

Publication number
JPS56111006A
JPS56111006A JP1391880A JP1391880A JPS56111006A JP S56111006 A JPS56111006 A JP S56111006A JP 1391880 A JP1391880 A JP 1391880A JP 1391880 A JP1391880 A JP 1391880A JP S56111006 A JPS56111006 A JP S56111006A
Authority
JP
Japan
Prior art keywords
liquid
pressure
membrane
backwashing
discharged
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.)
Granted
Application number
JP1391880A
Other languages
Japanese (ja)
Other versions
JPS644802B2 (en
Inventor
Teruyoshi Tsukamoto
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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP1391880A priority Critical patent/JPS56111006A/en
Publication of JPS56111006A publication Critical patent/JPS56111006A/en
Publication of JPS644802B2 publication Critical patent/JPS644802B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/04—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment

Abstract

PURPOSE:To perform the pretreatment of the liquid to be treated smoothly and maintain the effect of permeable membrane treatment at a high level by making use of the pressure of the membrane side residual liquid discharged from a membrane separating process for backwashing of fielter media in desalting treatment, etc. CONSTITUTION:The water to be treated enters a precision filter device C-1 through a sand filter device A, whereby it is further filtered. This filtrate is boosted by a boosting pump P-2, and is fed and pressured to a permeable membrane device D, by which it is separated to membrane permeated liquid I and membrane side residual liquid II. This liquid II is clear liquid of high pressure and is reduced of pressure by a pressure regulating valve (j), thence it is discharged to the outside of the system. When the device C-1 clogs, it is changed over to a stand-by precision filter device C-2, and after the liquid II of high pressure is reduced of pressure, it is passed through piplines 15, 6 and is discharged to the outside of the system after backwashing the media in the device C-1. By this method, the need for the clear filter water for backwashing is eliminated and the running costs are saved.
JP1391880A 1980-02-07 1980-02-07 Method for utilization of back pressure in membrane separating process Granted JPS56111006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1391880A JPS56111006A (en) 1980-02-07 1980-02-07 Method for utilization of back pressure in membrane separating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1391880A JPS56111006A (en) 1980-02-07 1980-02-07 Method for utilization of back pressure in membrane separating process

Publications (2)

Publication Number Publication Date
JPS56111006A true JPS56111006A (en) 1981-09-02
JPS644802B2 JPS644802B2 (en) 1989-01-26

Family

ID=11846544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1391880A Granted JPS56111006A (en) 1980-02-07 1980-02-07 Method for utilization of back pressure in membrane separating process

Country Status (1)

Country Link
JP (1) JPS56111006A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942011A (en) * 1982-09-02 1984-03-08 Mitsui Eng & Shipbuild Co Ltd Washing method of pretreatment filter in water making device with reverse osmotic membrane
JPS61139702U (en) * 1985-02-19 1986-08-29
JPS6295702U (en) * 1985-12-02 1987-06-18
JPS6443398A (en) * 1987-08-11 1989-02-15 S I Ii Kk Waste water regenerating apparatus
WO1996041674A1 (en) * 1995-06-08 1996-12-27 Schael Wilfried Method and device for treating water according to the principle of reversed osmosis
WO1998037950A1 (en) * 1997-02-25 1998-09-03 Zenon Environmental, Inc. Portable reverse osmosis unit for producing drinking water
FR2781168A1 (en) * 1998-07-17 2000-01-21 Polymem Production of two qualities of water using a combination of membrane filtration and reverse osmosis, with washing of the osmosis membrane by filtered water
JP2013163141A (en) * 2012-02-09 2013-08-22 Toshiba Corp Membrane filtration system
WO2014007262A1 (en) * 2012-07-02 2014-01-09 東レ株式会社 Fresh-water manufacturing device and fresh-water manufacturing method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942011A (en) * 1982-09-02 1984-03-08 Mitsui Eng & Shipbuild Co Ltd Washing method of pretreatment filter in water making device with reverse osmotic membrane
JPS61139702U (en) * 1985-02-19 1986-08-29
JPS6295702U (en) * 1985-12-02 1987-06-18
JPS6443398A (en) * 1987-08-11 1989-02-15 S I Ii Kk Waste water regenerating apparatus
WO1996041674A1 (en) * 1995-06-08 1996-12-27 Schael Wilfried Method and device for treating water according to the principle of reversed osmosis
WO1998037950A1 (en) * 1997-02-25 1998-09-03 Zenon Environmental, Inc. Portable reverse osmosis unit for producing drinking water
FR2781168A1 (en) * 1998-07-17 2000-01-21 Polymem Production of two qualities of water using a combination of membrane filtration and reverse osmosis, with washing of the osmosis membrane by filtered water
WO2000003792A1 (en) * 1998-07-17 2000-01-27 Polymem Method and installation for water treatment
US6349835B1 (en) 1998-07-17 2002-02-26 Polymem Water treatment installation
JP2013163141A (en) * 2012-02-09 2013-08-22 Toshiba Corp Membrane filtration system
WO2014007262A1 (en) * 2012-07-02 2014-01-09 東レ株式会社 Fresh-water manufacturing device and fresh-water manufacturing method

Also Published As

Publication number Publication date
JPS644802B2 (en) 1989-01-26

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