| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric regeneration type desalting apparatus made operable by low interpole voltage and capable of selecting the optimum arrangement on the basis of the quality of water to be treated. SOLUTION: In the electric regeneration type desalting apparatus wherein a desalting chamber 5 and a concentration chamber 3 are arranged between electrode chambers and the desalting chamber is filled with an ion exchanger and anion and cation exchange membranes are arranged between the chambers, the ion exchanger of the desalting chamber is constituted of a plurality of fibrous sheet or mesh layers from the anion exchange membranes 2 toward the cation exchange membranes 4 and one layer 6 among them is constituted of anion and cation exchange fibers 6b, 6a and the layer being in contact with the anion exchange membranes is constituted of anion exchange fibers 7 and the layer being in contact with the cation exchange membranes is constituted of anion and cation exchange fibers 6b, 6a or the layer being in contact with the anion exchange membranes is constituted of anion and cation exchange fibers and the layer being in contact with the cation exchange membranes is constituted of cation exchange fibers.
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