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Title:
希釈室に混床および単一相のイオン交換材を使用する水の電気脱イオン方法および装置
Document Type and Number:
Japanese Patent JP4509386
Kind Code:
B2
Abstract:
The invention provides a method and apparatus for electrodeionizing water, whereby the water to be purified is passed through diluting compartments in an electrodeionization unit having an anode compartment at one end of the unit and a cathode compartment at the other end of the unit, and a plurality of diluting compartments alternating with concentrating compartments defined by anion and cation exchange membranes. Each of the diluting compartments contains ion exchange material. Importantly, the ion exchange material comprises at least one mixed bed phase of anion exchange material and cation exchange material and at least one single phase, adjacent to the mixed bed phase, of anion exchange material or cation exchange material, or anion exchange and cation exchange material.

Inventors:
Barber, john, h
Tessier, David, Florian
Application Number:
JP2000583625A
Publication Date:
July 21, 2010
Filing Date:
November 04, 1999
Export Citation:
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Assignee:
GE Water and Process Technologies Canada
International Classes:
C02F1/469; B01D61/48; B01J47/08; C02F1/42; C02F1/46
Domestic Patent References:
JP10277557A
JP10216729A
Foreign References:
WO1997275147A1
WO1998011987A1
WO1998020972A1
Attorney, Agent or Firm:
Arakawa Satoshi