Effects of High Spinel and Chromium Oxide Crystal Contents on Simulated HLW Vitrification in DM100 Melter Tests (Final Report)

Technical Report · Wed Nov 13 04:00:00 EST 2013

DOI:https://doi.org/10.2172/1105976· OSTI ID:1105976

Kruger, Albert A. ^[1]; Matlack, K. S. ^[1]; Kot, W. K. ^[1]; Gong, W. ^[1]; Lutze, W. ^[1]; Pegg, I. L. ^[1]; Joseph, I. ^[1]

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1. Hanford Site (HNF), Richland, WA (United States)

The principal objective of the work was to evaluate the effects of spinel and chromium oxide particles on WTP HLW melter operations and potential impacts on melter life. This was accomplished through a combination of crucible-scale tests, settling and rheological tests, and tests on the DM100 melter system. Crucible testing was designed to develop and identify HLW glass compositions with high waste loadings that exhibit formation of crystalline spinel and/or chromium oxide phases up to relatively high crystal contents (i.e., > 1 vol%). Characterization of crystal settling and the effects on melt rheology was performed on the HLW glass formulations. Appropriate candidate HLW glass formulations were selected, based on characterization results, to support subsequent melter tests. In the present work, crucible melts were formulated that exhibit up to about 4.4 vol% crystallization.

• Research Organization: Hanford Site (HNF), Richland, WA (United States); USDOE Office of River Protection (ORP), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM)
• Contributing Organization: Department of Energy - Office of River Protection, The Catholic University of America
• DOE Contract Number: AC27-08RV14800
• OSTI ID: 1105976
• Report Number(s): ORP-56294 Rev 0; VSL-09R1520-1 Rev 0
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES