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AWWA WQTC58881
- Removal of Organic CCL Contaminants from Drinking Waters by Membrane and GAC Processes
- Conference Proceeding by American Water Works Association, 11/02/2003
- Publisher: AWWA
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Bench-scale treatment data for membrane and granular activated carbon technologies arepresented for the organic contaminants on the U.S. Environmental Protection Agency'sContaminant Candidate List (CCL). For granular activated carbon (GAC), isotherm results arepresented and quantitative structure property relationships are used in conjunction with existingcolumn models to calculate carbon use rates that account for the deleterious effects of naturalorganic matter fouling. For membrane processes, the screening-level experiments wereconducted with a spiral-wound membrane that treated a spiked groundwater. The mean bulkrejections for the CCL contaminants are presented for multiple pressures and recoveries.Judging from the results, both GAC and membrane technologies are expected to be highlysuccessful in removing many of the organic contaminants on the CCL. Additional studies willbe needed to develop full-scale cost information. Includes 20 references, tables, figure.
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