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REMOVING INORGANICS
Citation:
Sorg, T. REMOVING INORGANICS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-91/129 (NTIS PB91211524), 1991.
Description:
When EPA sets a regulation ( a maxim contaminant level) for a contaminant, it must also specify the "best available technology" (BAT) that can be used to remove the contaminant. ecause the regulations apply to community water systems, the technologies selected are ones that are commonly used to treat community size water Systems. hus, EPA R&D program has focused its efforts on evaluating primarily community applied technologies such as conventional coagulation-filtration, lime softening, ion exchange, adsorption, and membrane process. hen BAT is identified for a specific contaminant, frequently the BAT will be listed with its limitations because the process is often not effective under all water quality conditions. hese same limitations would also apply to POU/POE treatment. This paper discusses EPA's regulations on inorganic contaminants, the best available technologies cited by EPA, and the limitations of these processes. sing arsenic as an example, the impact of the contaminant chemistry and water-quality on removals is presented.
