Patent ID: 7771600
Filing Date: 2010-08-10
Classification: B01J,C02F

Abstract:
1. A method of treating water comprising the steps of: providing moderately saline water having substantially 0.05% or more by weight and having less than 1.00% by weight of the salts of Na, K, Ca, Mg, Fe, Cl, SO providing an ion exchange media saturated with a multivalent cation; passing the moderately saline water through the ion exchange media to produce an effluent having more multivalent cations and less sodium than the moderately saline water; providing a brine solution having more than 1.00% by weight of the salts of Na, K, Ca, Mg, Fe, Cl, SO passing the brine solution through the ion exchange media until the ion exchange media is sufficiently saturated with multivalent cations to again process moderately saline water having high sodium content; and utilizing the effluent.