Patent ID: 6110375
Filing Date: 2000-08-29
Classification: B01D,C02F,Y10S

Abstract:
A system for purifying impure water which comprises means for effecting reverse osmosis of water including a reverse osmosis membrane, an inlet to said reverse osmosis membrane, a first outlet from said reverse osmosis membrane for purifed water passed through said reverse osmosis membrane, and a second outlet from said reverse osmosis membrane for waste water not passed through said reverse osmosis membrane,means for passing said waste water from said means for effecting reverse osmosis to a means for deionizing said waste water to produce a stream of purified deionized water,means for recycling said purified deionized water to said inlet to said reverse osmosis membrane and means for recovering a stream of purified water including said purified deionized water from said reverse osmosis membrane wherein said stream of purified water is passed through said reverse osmosis step only once.