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UTILITY OF ZEOLITES IN ARSENIC REMOVAL FROM WATER
Shevade, S. AND R G. Ford*. UTILITY OF ZEOLITES IN ARSENIC REMOVAL FROM WATER. Presented at 226th ACS Nat'l. Mtg, New York, NY, September 07 - 11, 2003.
To inform the public.
Zeolites are well known for their ion exchange and adsorption properties. So far the cation exchanger properties of zeolites have been extensively studied and utilized. The anion exchanger properties of zeolites are less studied. Zeolite Faujasite Y has been used to remove arsenic from water in continuous flow reactions below WHO's and EPA's maximum contamination limits. The zeolites showed a very good arsenic removal capacity with contact time less than 2 min. The arsenic removal capacity of the zeolites over a wide pH range may be useful in determining the next generation water treatment processes. The effect of various cationic, anionic and organic water pollutants has been studied on arsenic removal capacity of zeolites. In situ FTIR characterization has been carried out to find out the arsenic removal mechanisms.
Record Details:Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY
GROUND WATER AND ECOSYSTEMS RESTORATION DIVISION
TECHNICAL AND ADMINISTRATIVE SUPPORT STAFF