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ORGANO-MODIFIED CLAYS FOR REMOVAL OF AQUEOUS RADIOACTIVE ANIONS

United States Patent Application

20150129504
A1
View the Complete Application at the US Patent & Trademark Office
Savannah River National Laboratory - Visit the Technology Transfer Website
Methods are described for the removal of highly soluble radioactive anions, e.g., radioactive technetium and/or radioiodide, from an aqueous solution. The methods utilize a sequestering agent that includes an organoclay, i.e., a clay with an intercalated cationic quaternary amine, as a sorbent for highly soluble radioactive anions that are present within an aqueous solution. In exemplary embodiments, the method can be utilized to treat aqueous waste at a nuclear power facility or to treat a groundwater contamination site or a soil or sediment contaminated site.
Kaplan, Daniel I. (Aiken, SC), Knox, Anna S. (Evans, GA), Crapse, Kimberly P. (Aiken, SC), Li, Dien (Buffalo Grove, IL), DiPrete, David P. (Evans, GA)
Savannah River Nuclear Solutions, LLC (Aiken SC)
14/ 080,311
November 14, 2013
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH [0001] This invention was made with Government support under Contract No. DE-AC09-08SR22470 awarded by the United States Department of Energy. The Government has certain rights in the invention.