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EXPERIMENTAL INVESTIGATION OF CRITICAL FUNDAMENTAL ISSUES IN HAZARDOUS WASTE INCINERATION
Kramlich, J., E. Poncelet, R. Charles, W. Seeker, G. Samuelsen, AND J. Cole. EXPERIMENTAL INVESTIGATION OF CRITICAL FUNDAMENTAL ISSUES IN HAZARDOUS WASTE INCINERATION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-89/048 (NTIS PB90-108507), 1989.
The report gives results of a laboratory-scale program investigating several fundamental issues involved in hazardous waste incineration. The key experiment for each study was the measurement of waste destruction behavior in a sub-scale turbulent spray flame. (1) Atomization Quality: The performance of subscale nozzles was directly measured in terms of droplet size by lazer diffraction. The large increase in time required to evaporate the substantially increased number of very large droplets resulted in penetration of unevaporated waste through the flame and to the wall. (2) Secondary Atomization. Test results showed that, when atomization quality was the limiting process, secondary atomization markedly improved both waste destruction efficiency and overall combustion efficiency, as measured by CO and total hydrocarbon emissions. (3) Compound Concentration. Test results support the hypothesis that varying secondary atomization intensity with compound concentration in the feed explains most of the variation in laboratory-scale studies. A mechanism involving mixing limited equilibrium chemistry is proposed to explain the field data. (4) Formation of Products of Incomplete Combustion. The broad spectrum of volatile organic compounds from a simplified flame were measured. Test results show that most of the organic compounds present were from the fuel.