JPS55109408A - Membrane separating method - Google Patents

Membrane separating method

Info

Publication number
JPS55109408A
JPS55109408A JP1810579A JP1810579A JPS55109408A JP S55109408 A JPS55109408 A JP S55109408A JP 1810579 A JP1810579 A JP 1810579A JP 1810579 A JP1810579 A JP 1810579A JP S55109408 A JPS55109408 A JP S55109408A
Authority
JP
Japan
Prior art keywords
precipitate
water
treated
treatment
stage
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
JP1810579A
Other languages
Japanese (ja)
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 JP1810579A priority Critical patent/JPS55109408A/en
Publication of JPS55109408A publication Critical patent/JPS55109408A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make possible the removal of ultrafine precipitate and perform high- degree treatment of water by letting the inorganic matter in the water to be treated precipitate and deposit in the fore-stage and subjecting this precipitate-contained slurry to pressure treatment by using permeable membranes in the post-stage.
CONSTITUTION: In the treatment method of the water to be treated containing organic and inorganic substances such as sewer and river water, the inorganic substances in the water to be treated are let to deposit as insoluble or hard-to-dissolve precipitate through addition of precpitate formers and coagulant aids or electrolysis in the fore-stage. Next, this precipitate-containing slurry is subjected to pressure treatment by using either organic or inorganic permeable membranes of fine pores from 2.5μ to 50W60Å to concentrate the liquid containing precipitation deposits on the high-pressure side of the membrane surfaces. The highly treated membrane- permeated-liquid is obtained on the other side. In this way, the removal of ultrafine precipitate may be accomplished and the high-degree water treatment performed.
COPYRIGHT: (C)1980,JPO&Japio
JP1810579A 1979-02-17 1979-02-17 Membrane separating method Pending JPS55109408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1810579A JPS55109408A (en) 1979-02-17 1979-02-17 Membrane separating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1810579A JPS55109408A (en) 1979-02-17 1979-02-17 Membrane separating method

Publications (1)

Publication Number Publication Date
JPS55109408A true JPS55109408A (en) 1980-08-22

Family

ID=11962337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1810579A Pending JPS55109408A (en) 1979-02-17 1979-02-17 Membrane separating method

Country Status (1)

Country Link
JP (1) JPS55109408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048195A (en) * 1983-05-27 1985-03-15 シー．ピー．シー．エンジニアリング　コーポレイション Method and device for softening fluid containing hard component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048195A (en) * 1983-05-27 1985-03-15 シー．ピー．シー．エンジニアリング　コーポレイション Method and device for softening fluid containing hard component
JPH0555199B2 (en) * 1983-05-27 1993-08-16 Cpc Eng Corp

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