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UTILITY OF SYNTHETIC ZEOLITES IN REMOVAL OF INORGANIC AND ORGANIC WATER POLLUTANTS
Citation:
Shevade, S., R G. Ford*, P. M. Kaiser*, AND J T. Wilson*. UTILITY OF SYNTHETIC ZEOLITES IN REMOVAL OF INORGANIC AND ORGANIC WATER POLLUTANTS. Presented at 225th American Chemical Society Nat'l. Mtg, New Orleans, LA, 03/23-27/2003.
Description:
Zeolites are well known for their ion exchange and adsorption properties. Different inorganic and organic pollutants have been removed from water at room temperature using various zeolites. Synthetic zeolites like ZSM-5, Ferrierite, Beta and Faujasite Y have been used to remove inorganic pollutants including arsenic, cadmium and lead from water in continuous flow reactions. Successful removal of the gasoline additive MTBE has also been achieved using these zeolites. The zeolites showed a very good pollutant removal capacity with contact time less than 1 min. The pollutant removal capacity of the zeolites has been examined over a wide pH range. The apparent removal mechanisms for the various contaminants include ion and ligand exchange for the inorganic contaminants and acid-catalyzed hydrolysis for the organic contaminant.