Patent ID: 7754071

Claim:
A system for continuously removing perchlorate contaminant from perchlorate contaminated water comprising: a plurality of immobile vessels, each containing a resin bed capable of binding perchlorate contaminant from said perchlorate contaminated water and yielding purified water and a perchlorate contaminated resin bed; a plurality of electronically controlled valves fitted to each one of the immobile vessels, one of said valves admitting contaminated water to the vessel, one removing purified water, one admitting regenerant, one admitting rinse liquid and one or more removing regenerant rinse liquid; and an electrical controller directing the plurality of electrically controlled valves so that when the system is in operation continuously removing perchlorate contaminant, perchlorate contaminated water is flowed to a first subset of vessels, regenerant is flowed to a second subset of vessels containing the most highly perchlorate contaminated resin bed and rinse liquid is flowed to a third subset of vessels containing the least contaminated resin bed.