Solid materials for removing arsenic and method thereof
AssigneeLawrence Livermore National Security, LLC
InventorsPaul R. Coronado, Sabre J. Coleman, Robert D. Sanner, Victoria L. Dias, John G. Reynolds
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Abstract
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.
Claims5
A composition comprising a dried hydrophobic sol-gel on a solid support structure, wherein said dried hydrophobic sol-gel is functionalized with at least one arsenic-removing constituent comprising a manganese and iron mixture, wherein said iron mixture comprises ferric chloride.
Dependencies are inferred from the claim text.