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Solid materials for removing arsenic and method thereof

United States Patent

July 1, 2008
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Solid materials have been developed to remove arsenic compounds from aqueous media. The arsenic is removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The solid materials adsorb the arsenic leaving a purified aqueous stream. The materials are aerogels or xerogels and aerogels or xerogels and solid support structure, e.g., granulated activated carbon (GAC), mixtures. The species-specific adsorption occurs through specific chemical modifications of the solids tailored towards arsenic.
Coronado; Paul R. (Livermore, CA), Coleman; Sabre J. (Oakland, CA), Sanner; Robert D. (Livermore, CA), Dias; Victoria L. (Livermore, CA), Reynolds; John G. (San Ramon, CA)
Lawrence Livermore National Security, LLC (Livermore, CA)
10/ 728,568
December 4, 2003
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.