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DRAW SOLUTES, METHODS OF FORMING DRAW SOLUTES, AND METHODS OF USING DRAW SOLUTES TO TREAT AN AQUEOUS LIQUID

United States Patent Application

20130048564
A1
View the Complete Application at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A method of treating an aqueous liquid. The method comprises providing an aqueous feed liquid comprising water and at least one solute to a first side of a membrane. A draw solution comprising water and a draw solute comprising at least one of a phosphazene compound and a triazine compound is provided to a second side of the membrane. At least a portion of the water of the aqueous feed liquid is osmosed across the membrane and into the draw solution to form a diluted draw solution comprising water and the draw solute. The water of the diluted draw solution is separated from the draw solute of the diluted draw solution to form a purified water product. Draw solutes comprising phosphazene compounds and draw solutes comprising triazine compounds are also disclosed, as are methods of forming the draw solutes.
Stewart, Frederick F. (Idaho Falls, ID), Benson, Michael T. (Idaho Falls, ID), Stone, Mark L. (Idaho Falls, ID)
BATTELLE ENERGY ALLIANCE, LLC (Idaho Falls ID)
13/ 479,726
May 24, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under Contract Number DE-AC07-05ID14517 awarded by the United States Department of Energy. The government has certain rights in the invention.