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ARSENIC REMOVAL FROM DRINKING WATER BY PROCESS MODIFICATION TO COAGULATION/FILTRATION. USEPA DEMONSTRATION PROJECT AT LIDGERWOOD, ND. FINAL PERFORMANCE EVALUATION REPORT
Citation:
CONDIT, W. E. AND A. S. CHEN. ARSENIC REMOVAL FROM DRINKING WATER BY PROCESS MODIFICATION TO COAGULATION/FILTRATION. USEPA DEMONSTRATION PROJECT AT LIDGERWOOD, ND. FINAL PERFORMANCE EVALUATION REPORT. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-06/159, 2006.
Impact/Purpose:
to inform the public
Description:
This report documents the activities performed and the results obtained for the arsenic removal treatment technology demonstration project at the Lidgerwood, North Dakota site. The objectives of the project were to evaluate: (1) the effectiveness of process modifications to an existing coagulation/gravity filtration plant in removing arsenic to meet the new arsenic maximum contaminant level (MCL) of 10 ug/L, (2) the reliability of the treatment system, (3) the required system operation and maintenance (O&M) and operator skills, and (4) the capital and O&M cost of the technology. The project also characterized water in the distribution system and process residuals produced by the treatment system.