| 摘要 |
<P>PROBLEM TO BE SOLVED: To produce high-purity deionized water while preventing scale generation. <P>SOLUTION: This electric device for producing deionized water is provided with at least one desalination treatment unit, the desalination treatment unit being provided between a cathode chamber E1 and an anode chamber E2, and being formed from a desalination chamber D and a pair of concentration chambers C1, C2 which are adjacently provided on both sides of the desalination chamber D and into which an anion exchanger is filled. The desalination chamber D is partitioned, by an ion exchange membrane, into a first small desalination chamber D-1 which is adjacent to one side of the concentration chamber C1, and a second small desalination chamber D-2 which is adjacent to the concentration chamber C2; the anion exchanger is filled into the first small desalination chamber D-1, and the anion exchanger and a cation exchanger are filled into the second small desalination chamber D-2 in an order such that the last ion exchanger through which the water which is undergoing treatment passes is the anion exchanger; and on the cathode side of the anion exchanger filled into the second small desalination chamber D-2, a bipolar membrane 4a is arranged in an orientation such that the anion exchange membrane surface thereof faces the anion exchanger. <P>COPYRIGHT: (C)2012,JPO&INPIT |
