PRESENT STATE OF SCALE CONTROL IN SEA WATER EVAPORATORS

The control of scale is important to the further development of evaporators for the desalination of sea water. The methods of scale control used at present are discussed, together with alternatives which are under study or have been proposed. Assuming that improved additives can be developed, the additive treatment is more attractive than alternative methods such as ion exchange or precipitation which significantly increase the capital cost of the evaporator. © 1969.