||Thin-Film Evaporation as a Pretreatment Technique for Removing Volatile Organics from Petroleum Refinery Wastes.
Northeim, C. M. ;
Allen, C. C. ;
Westfall, B. A. ;
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Cincinnati, OH. Hazardous Waste Engineering Research Lab.
Thin films ;
Petroleum refining ;
Waste disposal ;
Air pollution ;
Volatile organic compounds ;
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Oily wastes from petroleum refineries can result in air emissions during the land treatment of these wastes. A pilot-scale thin film evaporator (TFE) was used to remove volatile organics (VO) from refinery tank bottom sludge. Different TFE operating parameters were utilized to determine optimum process operating conditions and the percent removal of specific VO compounds was measured. Removal efficiencies of up to 99.9% were obtained, resulting in a 95% reduction in VO emissions from a land treatment test plot.