JPS5573388A - Regenerating method for photographic bleaching and fixing waste water - Google Patents

Regenerating method for photographic bleaching and fixing waste water

Info

Publication number
JPS5573388A
JPS5573388A JP14602878A JP14602878A JPS5573388A JP S5573388 A JPS5573388 A JP S5573388A JP 14602878 A JP14602878 A JP 14602878A JP 14602878 A JP14602878 A JP 14602878A JP S5573388 A JPS5573388 A JP S5573388A
Authority
JP
Japan
Prior art keywords
waste water
sulfite
compartment
fixing waste
exchange membrane
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
JP14602878A
Other languages
Japanese (ja)
Inventor
Takezo Ono
Mineo Watanabe
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.)
Teijin Engineering Ltd
Original Assignee
Teijin Engineering 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 Teijin Engineering Ltd filed Critical Teijin Engineering Ltd
Priority to JP14602878A priority Critical patent/JPS5573388A/en
Publication of JPS5573388A publication Critical patent/JPS5573388A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

PURPOSE: To recover silver from bleaching and fixing waste water effectively by a waste water regenerating method in which a sulfite is added to the waste water before or during electric dialysis.
CONSTITUTION: The ion exchange membrane electric dialyzer 21 is made up by arranging alternately the anion exchange membrane 24 and the cation exchange membrane 25 between the cathode 22 and the anode 23 to form the cathodic compartment 26, the plural concentration compartments 28, the plural desalination compartments 29, and the anodic compartment 27. The regeneration of the fixing waste water for recovery of pure silver is carried out by flowing the photographic bleaching and fixing waste water to which is added a sulfite to the desalination compartment 29 and by flowing the silver-dissolved aqueous solution to the concentration compartment 28 for performing electric dialysis. The addition of a sulfite to the photographic bleaching and fixing waste water is made before or during electric dialysis, and the sulfite used includeds sodium sulfite, sodium hydrogen sulfite, etc., in either solids or aqueous solution.
COPYRIGHT: (C)1980,JPO&Japio
JP14602878A 1978-11-28 1978-11-28 Regenerating method for photographic bleaching and fixing waste water Pending JPS5573388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14602878A JPS5573388A (en) 1978-11-28 1978-11-28 Regenerating method for photographic bleaching and fixing waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14602878A JPS5573388A (en) 1978-11-28 1978-11-28 Regenerating method for photographic bleaching and fixing waste water

Publications (1)

Publication Number Publication Date
JPS5573388A true JPS5573388A (en) 1980-06-03

Family

ID=15398465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14602878A Pending JPS5573388A (en) 1978-11-28 1978-11-28 Regenerating method for photographic bleaching and fixing waste water

Country Status (1)

Country Link
JP (1) JPS5573388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105936530A (en) * 2016-06-15 2016-09-14 江门市江海区炜洁净水材料有限公司 Water purifying agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105936530A (en) * 2016-06-15 2016-09-14 江门市江海区炜洁净水材料有限公司 Water purifying agent

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