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The Great Lakes National Program Office (GLNPO) of the U.S. Environmental Protection Agency (USEPA) has established the Assessment and Remediation of Contaminated Sediments (ARCS) Program in response to the Water Quality Act of 1987. The ARCS Program was charged with assessing and demonstrating remedial options for contaminated sediment problems in the Great Lakes. A set of technologies was identified, through a literature survey, for laboratory and field testing with sediment samples collected from five Great Lakes Areas of concern. Laboratory tests were conducted using nine processes, and pilot-scale (field-based) demonstrations of bioremediation, sediment washing, solvent extraction, and low-temperature thermal desorption were conducted at five sites. Analyses were performed on feed materials and all process residues showing polychlorinated biphenyl (PCB), polynuclear aromatic hydrocarbon (PAH), and heavy metals removal efficiencies ranging from > 6% to 99%. This paper presents the results of the five pilot-scale demonstrations conducted by the ARCS Program.
sediment, Assessment and Remediation of Contaminated Sediments (ARCS) Program, treatment technology, pilot-scale demonstration, solvent extraction, sediment washing, thermal desorption, biodegradation
Environmental engineer, U.S. Environmental Protection Agency, Great Lakes National Program Office, Chicago, IL
Environmental engineer, U.S. Army Engineer Division, North Central, Chicago, IL