Conversion of Mixed Waste to LSA Waste—A Case Study

by M. J. Williams, Bechtel Natl Inc, United States,
M. E. Redmon, Bechtel Natl Inc, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering


This paper describes a treatment process that was successfully employed at the National Guard Armory in Chicago, Illinois, to convert sludge classified as hazardous chemical/radioactive mixed waste to low specific activity (LSA) radioactive waste. A two-phased thermal treatment process was selected to eliminate the ignitability characteristic. A ventilation system was utilized in both phases to prevent the release of radioactive and heavy metal particulates and volatile organic compounds into the environment. Post-treatment analytical results verified that the treatment substantially reduced the concentrations of volatiles and semi-volatiles and eliminated the ignitability characteristic. Disposal of the treated sludge as radioactive LSA waste was approved by the disposal site in February 1989.

Subject Headings: Waste management | Case studies | Chemical wastes | Radioactive wastes | Waste disposal | Chemical processes | Chemical treatment | Heat treatment | Illinois | United States | Chicago

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