Solid materials for removing arsenic and method thereof

Patent · Tue Sep 28 00:00:00 EDT 2010

OSTI ID:1014556

Coronado, Paul R ^[1]; Coleman, Sabre J ^[2]; Sanner, Robert D ^[1]; Dias, Victoria L ^[1]; Reynolds, John G ^[3]

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1. Livermore, CA
2. Oakland, CA
3. San Ramon, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA)
• Patent Number(s): 7,803,737
• Application Number: US Patent Application 12/134,700
• OSTI ID: 1014556
• Country of Publication: United States
• Language: English