Addition of finely divided BaSO{HD 4 {B particles to sea water for removal of scale components

摘要

A process of reclaiming drinking and industrial water from sea water, according to which the sea water to be processed is subjected to a pretreatment, comprising filtering, acidifying and degassing said sea water. To the thus treated sea water there is then added in suspension finely divided barium sulphate to provide nuclei for the crystal growth of calcium sulphate on the barium sulphate. The thus obtained suspension is then in a continuous process heated and partly evaporated, during which process, temperatures of supersaturation, with respect to calcium sulphate are reached, the water which is evaporated being collected as condensate and distillate.