Patent ID: 9186665
Filing Date: 2015-11-17
Classification: B01J,C02F,Y02W

Abstract:
1. A resin regeneration system comprising: (a) a regeneration vat for holding spent cation exchange resin; (b) a regenerant solution tank for holding fresh regenerant solution, the regenerant solution tank being connected to the regeneration vat to allow transfer of the regenerant solution into the regeneration vat to regenerate the spent cation exchange resin to form fresh cation exchange resin and spent regenerant solution; (c) a regenerant recovery tank comprising (i) a fluid inlet to receive the spent regenerant solution, and (ii) a fluid outlet to release treated regenerant liquid; (d) a chemical dispenser to dispense a regenerant treatment composition into the spent regenerant solution in the regenerant recovery tank to form a treated regenerant liquid and precipitate flocs; (e) a solids separator to receive the treated regenerant liquid and separate the precipitate flocs from the treated regenerant liquid to form a separated regenerant solution; (f) a pH adjuster to adjust the concentration of chloride ions in the separated regenerant solution to form fresh regenerant solution; and (g) a pump to pump the fresh regenerant solution to the regenerant solution tank to regenerate additional spent cation exchange resin.