| OCR Text |
Show CONCLUSIONS The conc 1 us ions 1 i sted be low are based on resu 1 ts obta i ned from tests at one incineration facility burning one mix of hazardous waste. The facility was reasonably representative of a larger, well operated incinerator; however, previous tests at hazardous waste incinerators have shown that the specific compounds emitted and their levels in stack gases can vary considerably. The conclusions should be viewed in this context. 1. The percent of the total hydrocarbon (THC) emissions that were detected as specific compounds ranged from 50 to 67 percent for five of the six test runs; 91 percent was detected in one run. A very 1 arge number of constituents were separated by the analytical methods, however, a much smaller number could be specifically identified. Thus, many of the detected organic compounds could be identified only by class. The fraction of the THC that was not detected is most likely explained by uncertainty in the measurements, compounds that were not chromatographable by the analytical conditions, GC columns that would not effectively separate the compounds, or aldehydes that could not be quantitated. 2. Methane accounted for the largest fraction of the THC. 3. Oxygenated aliphatic compounds were the largest class of compounds among the semivolatiles, both in total mass and number of compounds. 4. The transient upsets during Runs 4 to 6 did not cause significant increases in the concentrations of semivolatile compounds or most volatile compounds. A few volatile compounds did increase with methane, ethylene, benzene, and isooctane showing the largest increases. REFERENCES 1. Federal Register, Volume 46, No. 15, January 23, 1981. 2. Incineration of Liquid Hazardous Wastes" Final Report to the Environmental Protection Agency by the Environmental Effects, Transport and Fate Committee of the Science Advisory Board, April 1985. 3. Trenholm, A. R., and C. C. Lee, "Analysis of PIC and Total Mass Emissions from an I nci nerator, II Proceed i ngs of the Twe 1 fth Annua 1 Research Symposium, EPA/600/9-86/022, August 1986. 4. Total Mass Emissions from a Hazardous Waste Incinerator, Final Report by Midwest Research Institute to the U.S. Environmental Protection Agency, Hazardous Waste Engineering Research Laboratory, June 12, 1987. 6 |
