METHOD AND DEVICE FOR WATER DELSALINIZATION

摘要

The invention relates to a method and device for water desalinization. During the regeneration in water purification electrolysis cells, the regeneration water flows through a brine compartment in which ions from the ion exchangers are introduced by means of an electric field. If the water to be desalinized contains too much carbonate, it is frequently subjected to sedimentation in the brine compartment. According to the inventive electrolysis cell (1), the regeneration solution exiting the brine compartment (14) is fed to a degassing chamber (19) where an extensive decarbonization occurs. The decarbonized water is fed to a cathode compartment (20) and anionic components thereof are partially introduced again into the brine compartment (14) via an anion exchanger compartment (7). The ratio OH<->/X<-> changes to smaller values, whereby resulting in an acidification of the brine compartment (14). As a result, a liming of the brine compartment is prevented.