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Bench-Scale Testing of Selected Remediation Alternatives for Contaminated Sediments
The Assessment and Remediation of Contaminated Sediments (ARCS) Program within the U.S. Environmental Protection Agency’s Great Lakes National Program Office (GLNPO) contained a component for demonstrating and evaluating sediment remediation technologies. Toward this end, bench-scale tests of solvent extraction, thermal desorption, and wet air oxidation technologies were conducted. Contaminated sediments were tested from the Grand Calumet River, Indiana; Buffalo River, New York; Saginaw River, Michigan; and Ashtabula River, Ohio. The primary contaminants of concern in these sediments were polychlorinated biphenyls (PCBs) and polynuclear aromatic hydrocarbons (PAHs). The solvent extraction tests were conducted with sediments from the Grand Calumet, Buffalo, and Saginaw rivers. The thermal desorption studies were conducted with sediments from the Grand Calumet, Buffalo, and Ashtabula rivers. The wet air oxidation testing was performed with the Grand Calumet River sediment. Raw sediment contaminant concentrations ranged from 0.32-21.9 mg/kg dry mass for PCBs and 2.70-266 mg/kg dry mass for PAHs. PCB removal or destruction efficiencies ranged from approximately 6-99%. PAH removal or destruction efficiencies ranged from 65-99%. Mass balance closures ranged from 40-99% for solids; 59-139% for water; 29-3500% for oil; 16-129% for PCBs; and 69-3170% for PAHs.
Bench-Scale Testing of Selected Remediation Alternatives for Contaminated Sediments
The Assessment and Remediation of Contaminated Sediments (ARCS) Program within the U.S. Environmental Protection Agency’s Great Lakes National Program Office (GLNPO) contained a component for demonstrating and evaluating sediment remediation technologies. Toward this end, bench-scale tests of solvent extraction, thermal desorption, and wet air oxidation technologies were conducted. Contaminated sediments were tested from the Grand Calumet River, Indiana; Buffalo River, New York; Saginaw River, Michigan; and Ashtabula River, Ohio. The primary contaminants of concern in these sediments were polychlorinated biphenyls (PCBs) and polynuclear aromatic hydrocarbons (PAHs). The solvent extraction tests were conducted with sediments from the Grand Calumet, Buffalo, and Saginaw rivers. The thermal desorption studies were conducted with sediments from the Grand Calumet, Buffalo, and Ashtabula rivers. The wet air oxidation testing was performed with the Grand Calumet River sediment. Raw sediment contaminant concentrations ranged from 0.32-21.9 mg/kg dry mass for PCBs and 2.70-266 mg/kg dry mass for PAHs. PCB removal or destruction efficiencies ranged from approximately 6-99%. PAH removal or destruction efficiencies ranged from 65-99%. Mass balance closures ranged from 40-99% for solids; 59-139% for water; 29-3500% for oil; 16-129% for PCBs; and 69-3170% for PAHs.
Bench-Scale Testing of Selected Remediation Alternatives for Contaminated Sediments
Timberlake, Dennis L. (author) / Garbaciak, StephenJr. (author)
Journal of the Air & Waste Management Association ; 45 ; 52-56
1995-01-01
5 pages
Article (Journal)
Electronic Resource
Unknown
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