Patent ID: 7540965
Filing Date: 2009-06-02
Classification: B01J,C02F

Abstract:
1. A process for the removal of DOC from water containing DOC, said process comprising: (i) contacting the water with ion-exchange resin to enable adsorption of DOC on the resin; (ii) separating the resin loaded with DOC from the water; (iii) regenerating at least a portion of the separated resin by contacting it with a concentrated inorganic salt solution containing a source of anions such that the anions exchange with DOC adsorbed on the resin; (iv) separating the regenerated resin from the concentrated salt solution containing DOC; (v) contacting the solution from step (iv) with a coagulant and/or flocculant such that the DOC becomes insoluble in the salt solution; and (vi) removing the insoluble DOC of step (v) from the salt solution.