JPS54125188A - Electrodialyzing method - Google Patents
Electrodialyzing methodInfo
- Publication number
- JPS54125188A JPS54125188A JP3297878A JP3297878A JPS54125188A JP S54125188 A JPS54125188 A JP S54125188A JP 3297878 A JP3297878 A JP 3297878A JP 3297878 A JP3297878 A JP 3297878A JP S54125188 A JPS54125188 A JP S54125188A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- soln
- plated
- substrate
- current density
- 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
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
-
- 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
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PURPOSE: To concentrate or desalt an aq. soln. of an electrolyte without adding any acid and forming scale on a cathode by electrodialyzing the soln. by an ion exchange membrane method using a Ni-plated cathode at a current density above a specific value.
CONSTITUTION: Using an electrically conductive cathode substrate such as iron or stainless steel as a cathode and Ni or its alloy as an anode, the substrate is plated with Ni in a Ni bath based on a Ni salt, etc. at a current density of 9W30 A/dm3. Using the resulting Ni-plated cathode substrate as a cathode, an aq. soln. of an electrolyte contg. dissolved ions easy to form insol. salts is electrodialyzed in a known electrodialyzer divided into dilution and concn. chambers with cation and anion exchange membranes alternately arranged between cathode and anode chambers. Thus, little scale is deposited on the cathode in electrodialysis and hence operation can be continued over a long term at a low voltage.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3297878A JPS54125188A (en) | 1978-03-24 | 1978-03-24 | Electrodialyzing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3297878A JPS54125188A (en) | 1978-03-24 | 1978-03-24 | Electrodialyzing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54125188A true JPS54125188A (en) | 1979-09-28 |
Family
ID=12373967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3297878A Pending JPS54125188A (en) | 1978-03-24 | 1978-03-24 | Electrodialyzing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54125188A (en) |
-
1978
- 1978-03-24 JP JP3297878A patent/JPS54125188A/en active Pending
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