Patent ID: 7501065
Filing Date: 2009-03-10
Classification: B01D,C01D,C02F,F24S,Y02A,Y02E

Abstract:
1. A method for producing sodium sulfate and sodium chloride from saline water, said method comprising the steps of: (a) removing sulfate scale and impurities from said saline water by (b) removing sodium sulfate from said intermediate saline water by (c) recycling said sodium chloride rich water through said method to depress the solubility limits of said sodium sulfate; or (d) using said sodium chloride rich water to irrigate salt tolerant crops; or (e) blending said sodium chloride rich water with irrigation water to irrigate low salt tolerant crops; or (f) using said sodium chloride rich water to construct salt gradient solar ponds to produce energy; or (g) evaporating said sodium chloride rich water in solar stills to produce sodium chloride.