Impact of Small Column Ion Exchange Streams on DWPF Glass Formulation: Melt Rate Studies

摘要

This study was undertaken to evaluate the potential impacts of the Small Column Ion Exchange (SCIX) streams--particularly the addition of Monosodium Titanate (MST) and Crystalline Silicotitanate (CST)--on the melt rate of simulated feed for the Defense Waste Processing Facility (DWPF). Additional MST was added to account for contributions from the Salt Waste Processing Facility (SWPF). The Savannah River National Laboratory (SRNL) Melt Rate Furnace (MRF) was used to evaluate four melter feed compositions: two with simulated SCIX and SWPF material and two without. The Slurry-fed Melt Rate Furnace (SMRF) was then used to compare two different feeds: one with and one without bounding concentrations of simulated SCIX and SWPF material. Analyses of the melter feed materials confirmed that they met their targeted compositions.