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Method for the removal and recovery of mercury

United States Patent

5,597,729
January 28, 1997
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The present invention is an enhanced method for the removal and recovery of mercury from mercury-contaminated matrices. The method involves contacting a mercury-contaminated matrix with an aqueous dispersant solution derived from specific intra-amoebic isolates to release the mercury from the mercury-contaminated matrix and emulsify the mercury; then, contacting the matrix with an amalgamating metal from a metal source to amalgamate the mercury to the amalgamating metal; removing the metallic source from the mercury-contaminated matrix; and heating the metallic source to vaporize the mercury in a closed system to capture the mercury vapors.
Easterly; Clay E. (Knoxville, TN), Vass; Arpad A. (Oak Ridge, TN), Tyndall; Richard L. (Clinton, TN)
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
08/ 422,028
April 13, 1995
This invention was made with Government support under contract DE-AC05-OR21400 awarded by the U.S. Department of Energy to Martin Marietta Energy Systems, Inc., and the Government has certain rights in this invention.