METHOD AND INSTALLATION FOR TREATING AN AQUEOUS SOLUTION BY ION EXCHANGE

摘要

The invention concerns a method of treating an aqueous solution by ion exchange and an installation for carrying out the method. The method is intended for the desalination and softening of water. The solution to be treated passes through a space partioned off by a wall which is permeable to ions. Formed between an anode and a cathode is an electrochemical cell in which ion migration can be initiated, the outside of the partition wall, i.e. the side remote from the space through which the solution is flowing, being surrounded by a scavenging liquid. During treatment of the solution by ion exchange, the cations or anions stripped from the solution pass for analytical purposes through the ion-exchange membrane formed by the partition wall into the scavenging liquid which flows continuously past the ion-exchange membrane to carry away the ions.