To provide a method for electrodialysis and an apparatus therefor, both using an industrially excellent ion exchange membrane which is highly heat-resistant and excellent in a rate of a reaction, causes a slight amine odor and scarce elution from a polymer.
The electrodialysis method is characterized in using the electrodialysis apparatus body of a laminated construction comprising desalting chambers and ion thickening chambers having a cation exchange membrane and an anion exchange membrane which contains a repetition unit as a component having a specified chemical structure, a flow passage for first water, that is, water to be treated charged into each desalting chamber and treated water discharged therefrom, a flow passage for second water charged into each ion thickening chamber and discharged therefrom, an anode and a cathode disposed respectively on either side of the electrodialysis apparatus body perpendicularly to the direction of the lamination of the apparatus, and a voltage application means for applying voltage across the anode and cathode to place an electric field to move into the ion thickening chamber dissolved ions in the water to be treated flowing into the desalting chamber.
| JPS5417845 | ELECTROSTATIC PRINTING AND PRINTING HEAD |
KUDO KEIKO
TAKASAKI NAOKO
WATANABE JIYUNYA
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