METHOD FOR PREVENTING ADHESION OF MICROORGANISM-DERIVED CONTAMINANT TO ELECTRODIALYSIS VESSEL AND ELECTRODIALYSIS APPARATUS

摘要

PROBLEM TO BE SOLVED: To prevent the adhesion of microorganism-derived contaminants to an electrodialysis vessel and prevent the damage of an ion-exchange membrane. SOLUTION: A water treatment is conducted while a chlorine-based oxidizing agent is injected only into concentrated circulation water circulated and supplied to a concentration chamber 55 of an electrodialysis vessel 5; and the adhesion of the microorganism-derived contaminants to the electrodialysis vessel is prevented by using the chlorine-based oxidizing agent, and the damage of an ion-exchange membrane is prevented by chlorine without using a reducing agent. COPYRIGHT: (C)2004,JPO