| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To produce high-purity deionized water while inhibiting the generation of a scale. <P>SOLUTION: In an electric deionized water production apparatus provided with at least one desalting unit between a cathode and an anode facing each other, the desalting unit comprises a desalting chamber D and a pair of concentration chambers C1, C2 provided on both adjacent sides of the desalting chamber D, the desalting chamber D is partitioned into a first small desalting chamber D-1 and a second small desalting chamber D-2, the first small desalting chamber D-1 is filled with an anion exchanger, the second small desalting chamber D-2 is filled with an anion exchanger and a cation exchanger in such order that the anion exchanger is the last ion exchanger through which water to be treated passes, the first concentration chamber C1 is filled with one or both of an anion exchanger and a cation exchanger, and the concentration chamber C2 is filled with an anion exchanger and a cation exchanger in a double bed form. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
