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BIOASSAY-DIRECTED CHEMICAL ANALYSIS OF ORGANIC EXTRACTS OF EMISSIONS FROM A LABORATORY-SCALE INCINERATOR: COMBUSTION OF SURROGATE COMPOUNDS
Citation:
DeMarini, D.M., R. Williams, E. Perry, P. Lemieux, AND W. Linak. BIOASSAY-DIRECTED CHEMICAL ANALYSIS OF ORGANIC EXTRACTS OF EMISSIONS FROM A LABORATORY-SCALE INCINERATOR: COMBUSTION OF SURROGATE COMPOUNDS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-93/247.
Description:
The paper describes using a prototype/pilot-scale rotary kiln (73 kill) to examine the chemical composition and biological effect's of emissions produced when operating the kiln under suboptimal conditions resulting from batch charging. he surrogate wastes evaluated included combinations of solid or liquid, chlorinated or nonchlorinated compounds: polyethylene (PE), polyvinylchloride (PVC), toluene (TOL), carbon tetrachloride (CC14), PE + PVC, and TOL + CC14. he dichloromethane-extractable organics from particles and semivolatiles were evaluated for mutagenic activity. he mutagenic potencies of the emissions ranked: PE > TOL > PE + PVC > TOL + CC14. he organic extracts from the PVC and CC14 emissions were not mutagenic. he high mutagenic potency of the nonchlorinated compounds relative to the chlorinated appeared to be due to (1) the greater presence of polycyclic aromatic hydrocarbons (PAHS) relative to chlorinated organics in the former compared to the latter emissions, and (2) the greater sensitivity of the Salmonella assay to PAHs relative to chlorinated organics. he mutagenic emission factors for the TOL or PE emissions were similar to those of municipal waste combustors; those for PE + PVC or TOL + CC14 were similar to those of oil or coal burned in industrial and utility boilers and power plants.