HIGH PRESSURE TYPE ELECTRIC TYPE DEIONIZATION DEVICE, HIGH PRESSURE TYPE ELECTRIC TYPE DEIONIZATION SYSTEM, AND METHOD FOR PRODUCING HIGH PURITY WATER

摘要

PPROBLEM TO BE SOLVED: To provide an electric type deionization device suitable for a high purity water production system, even in the waste water to be treated under high pressure from nuclear installations or the like, which can reutilize the same as high purity water. PSOLUTION: An electric type deionization stack 10 is composed of a plurality of chambers divided with a chamber frame 11 and an ion exchange membrane 12, respectively. The chambers on both the edge parts compose an anode chamber 13 and a cathode chamber 14, and the chambers arranged between the anode chamber 13 and the cathode chamber 14 compose at least one concentrating chamber 15 and at least one desalination chamber 16. Each chamber frame 11a composing the concentrating chamber 15 is provided with a concentrated water outlet 17, and each chamber frame 11b composing the desalination chamber 16 is provided with a treated water outlet 18. The inside of a pressure vessel 20 is provided with: a concentrated water chamber 24 in which concentrated water flows out from each concentrated water outlet 17 in the electrolytic type ionization stack 10; and a water treatment chamber 25 in which treated water flow out from each treated water outlet 18 so as to be partitioned by a partition plate 23. PCOPYRIGHT: (C)2009,JPO&INPIT