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Show WASTE CHARACTERISTICS The liquid used in the incineration tests is a waste product that contains 50 percent dissolved solids with a higher heating value (HHV) of approximately 3270 Btu/lb. IGT's analysis of the waste consisted of 1) performing a proximate and ultimate analysis, 2) determination of ash/ fusion temperature characteristics of the inorganics within the waste, and 3) chemical compositional analysis of ash and slag generated from combustion of the waste. These analyses are described below. Proximate and Ultimate Analyses The chemical composition of one of the "as-received" powdered waste samples was determined. Shown in Table 5, results indicate that the "raw" waste contains approximately 37% carbon, by weight. Fusion Temperature Characteristics of Inorganics in the Waste The melting/fusion characteristics of the inorganics in the liquid waste were determined to better predict the combustion conditions within the incinerator during firing. These characteristics were determined at IGT's Analytical Lab using a modified American Society of Testing Materials (ASTM) ashing test procedure in which the organics in the waste were first burned out (i.e., ashed): the remaining inorganics were powdered and formed into cones prior to the actual deformation, softening, hemispherical, and fluid (fusion) temperature tests utilized in this type of analysis. The temperatures used to "burn out" or "ash" the organic material in the powdered samples were, in the sequence they were performed, 1600°, 1900°, 1300° and 1000°F. The ashing tests were conducted in both oxidizing and reducing atmospheres: results are presented in Table 6. The data in Table 6 show that the fluid temperature is approximately 2750° to 2800°F, regardless of the ashing temperature. In addition, the fluid temperatures are very similar for both oxidizing and reducing conditions. Chemical Analysis of Ash/Slag The chemical composition of the slag generated from one of the powdered liquid waste samples was determined by Harbison-Walker during their testing in preparation for making refractory recommendations. Table 7 summarizes the H-W findings. The chemical constituents of the 1000° to 1900°F ash samples presented in Table 6 were determined and indicate that the major oxides in the ash are P20 5 , Na20, K20, and Can. The test results are shown in Table 8. The 1900°F ash sample was analyzed for chloride content and contained less than 0.01% chloride by weight (dry basis). 23 |