Title:
ELECTRODIALYSIS DEVICE, AND SYSTEM AND METHOD FOR TREATING WATER
Document Type and Number:
WIPO Patent Application WO/2022/130782
Kind Code:
A1
Abstract:
An electrodialysis device is provided with: bipolar membranes and anion exchange membranes which are arranged alternatively between a positive electrode and a negative electrode; a positive electrode chamber which is defined by the positive electrode and the bipolar membrane; a negative electrode chamber which is defined by the negative electrode and the bipolar membrane; and at least one (acid chamber)-(alkali chamber) set which is arranged between the positive electrode chamber and the negative electrode chamber and in which an acid chamber and an alkali chamber are arranged adjacently to each other with the anion exchange membrane interposed therebetween. The acid chamber is defined by the anion exchange membrane and the bipolar membrane arranged on the positive electrode chamber side and produces an acid solution by electrodialysis upon the supply of water, and the alkali chamber is defined by the anion exchange membrane and the bipolar membrane arranged on the negative electrode chamber side and produces an alkali solution by electrodialysis upon the supply of a solution to be treated which contains an acid and an alkali.
Inventors:
TAKADA AKIHIRO (JP)
NAKANO TORU (JP)
NAKANO TORU (JP)
Application Number:
PCT/JP2021/039051
Publication Date:
June 23, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
ORGANO CORP (JP)
International Classes:
B01D61/44; B01D61/46; B01D63/08; C02F1/469
Foreign References:
| JP2007222779A | 2007-09-06 | |||
| JP2009241024A | 2009-10-22 | |||
| JP2019072677A | 2019-05-16 | |||
| JPH0824587A | 1996-01-30 | |||
| JP2014161794A | 2014-09-08 |
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
Download PDF:
Previous Patent: ELECTRIC CIRCUIT-BREAKER DEVICE
Next Patent: POLISHING HEAD AND SUBSTRATE PROCESSING DEVICE
Next Patent: POLISHING HEAD AND SUBSTRATE PROCESSING DEVICE