Full-scale evaluation of the thermal stability-based hazardous organic waste incinerability ranking.

The results of a full-scale evaluation of the thermal stability-based hazardous organic waste incinerability ranking are presented. Tests were conducted for a surrogate mixture consisting of sulfur hexafluoride, chlorobenzene, toluene, tetrachloroethene, methylene chloride, 2-chloropropene and 1,1,1-trichloroethane under nominal incinerator operating conditions. Based on median surrogate DREs, the results indicated that the pyrolytic ranking was statistically significant at the 90 percent confidence level while the oxidative ranking was statistically significant at the 97.5 percent confidence level. The heat of combustion ranking failed to give a statistically significant correlation at the 90 percent confidence level. The statistical success of the thermal stability rankings and statistical failure of the heat of combustion ranking suggest that chemical reaction kinetics controlled the relative emission rates of the surrogate compounds during these tests.