Title:
水処理装置および水処理方法
Document Type and Number:
Japanese Patent JP6752932
Kind Code:
B2
Abstract:
To provide a water treatment device capable of suppressing a deterioration of quality of treated water while suppressing a decrease in the amount of treated water and generation of scale.SOLUTION: A plurality of electric deionized water production apparatuses each have include, between an anode and a cathode: a demineralized chamber which is partitioned by a first anion exchange membrane located on the anode side and a cation exchange membrane located on the cathode side and filled with an ion exchanger; a first concentration chamber adjacent to the demineralized chamber via the cation exchange membrane and having a cathode side partitioned by a second anion exchange membrane; and a second concentration chamber adjacent to the demineralized chamber via the first anion exchange membrane. The demineralization chambers of the respective electric deionized water production apparatuses communicate in series, and treating target water is passed therethrough and flowed out as treated water. The anion exchanger is charged into the first concentration chamber adjacent to the first-stage demineralizing chamber through which the treating target water is first passed, and in the first concentration chamber adjacent to the last stage demineralizing chamber through which the treated water flows out via the cation exchange membrane, the cation exchanger is charged alone into the cathode side of the cation exchange membrane, and the anion exchanger is charged alone into the other regions.SELECTED DRAWING: Figure 1
Inventors:
Kenji Shibasaki
Mao Hidaka
Keisuke Sasaki
Mao Hidaka
Keisuke Sasaki
Application Number:
JP2019096072A
Publication Date:
September 09, 2020
Filing Date:
May 22, 2019
Export Citation:
Assignee:
Organo Corporation
International Classes:
C02F1/469; B01D61/48; B01D61/54; B01D61/58
Domestic Patent References:
| JP2015083287A | ||||
| JP2012239965A | ||||
| JP2004033977A |
Foreign References:
| WO2011152226A1 | ||||
| US2694680 |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata