Title:
A desalting method and a desalination device
Document Type and Number:
Japanese Patent JP6001400
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a desalination method in which when water is desalinated by using a pair of electrodes and a bipolar membrane disposed between the pair of electrodes, an exchange capacity of the bipolar membrane can be utilized satisfactorily and it is made unnecessary that the regenerated water, that is generated, when the bipolar membrane is regenerated, and is to be recycled, is neutralized.SOLUTION: The bipolar membrane comprises a weakly-acidic cation exchange membrane and a strongly-basic anion exchange membrane or a strongly-acidic cation exchange membrane and a weakly-acidic anion exchange membrane. An ion exchange capacity of the cation exchange membrane and that of the anion exchange membrane are determined so that the relatively-smaller one becomes 90% or larger than the relatively-larger one.
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Inventors:
Yasumitsu Sumita
Koji Yamanaka
Koji Yamanaka
Application Number:
JP2012216425A
Publication Date:
October 05, 2016
Filing Date:
September 28, 2012
Export Citation:
Assignee:
Organo Corporation
International Classes:
C02F1/469; B01D61/46
Domestic Patent References:
| JP60001234A | ||||
| JP2010029753A | ||||
| JP8143659A |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata
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