Abstract

Numerous bench-scale and pilot-scale tests have been conducted to support high-level waste vitrification projects within DOE. These projects include the Hanford Waste Vitrification Plant (HWP), the Defense Waste Processing Facility (DWPF), and the West Valley Demonstration Project (MNDP). Testing for these projects has investigated aspects of the vitrification process such as the pumpability of the slurry feed, melter processing rates, melter scale-up, and off-gas decontamination factors for feed constituents. The high costs for testing have generated interest in using modeling to predict major processing impacts on the vitrification systems from any given feed material. Important components required for such modeling include feed composition, feed rheology, melter glass temperature, melter geometry, and melter power configurations. I Some work has already been performed in modeling glass melters, but little attention has been given to feed composition (Routt 1982).

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