| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolytic deionizing apparatus capable of sufficiently removing even weak electrolytes such as silica and boron and capable of obtaining high quality treated water having a high specific resistance by a single apparatus. SOLUTION: Raw water is introduced from raw water supply piping 5 into primary desalting chambers 1 and treated water (primarily desalted water) in the chambers 1 is introduced from piping 6 into secondary desalting chambers 2. Treated water (secondarily desalted water) in the chambers 2 is drawn as treated water. Part of the primarily desalted water is drawn by piping 8 from the piping 6 and fed to concentration chambers 3, 4, a cathode chamber 18 and an anode chamber 17, and waste water from the concentration chambers 3, 4, the cathode chamber 18 and the anode chamber 17 is drawn as concentrated waste water through piping 9.
|
