"This program was performed to generate fundamental flame-mode data on the incinerability of hazardous waste compounds. Other objectives included the comparison of flame and nonflame data, and the development of guidelines for future work on the development of an acceptable incinerability ranking methodology. Two reactor systems were selected to provide flexibility in simulating the failure conditions that can occur in liquid injection incinerators. In the microspray reactor the reaction characteristics of single droplets of waste compounds were studied. The turbulent flame reactor consisted of a swirl-stabilized turbulent spray flame in which the waste compounds were doped into an auxiliary fuel. In this reactor the effect of flame parameters such as stoichiometry, atomization quality, and quench phenomenon were studied. The approach was to establish conditions that yielded high destruction efficiencies, and then to perturb the flame by changing one or more flame parameters until incomplete destruction occurred. The waste compound concentration was then measured at the reader exit to establish the ranking. Five test compounds were utilized: acrylonitrile, benzene, chlorobenzene, chloroform, and 1,2-dichloroethane. The results indicated that when operated under conditions of optimal combustion efficiency flames were capable of high waste destruction efficiency. Under off-optimum conditions the destruction efficiencies were typically 90-99.9 percent. No single ranking procedure adequately described the rankings observed under all conditions. Rather, the flame rankings were condition-dependent. These data indicate that a realistic incinerability ranking methodology must be a synthesis of waste properties and system-dependent parameters."