Noble-metal testing results for the West Valley vitrification system
Conference
·
· Transactions of the American Nuclear Society; (USA)
OSTI ID:5235510
At the West Valley Demonstration Project (WVDP), the slurry-fed ceramic melter (SFCM) has been in test operation since December 1984 to vitrify simulated waste slurries. Over 4 yr, a moderate range of glass formulations, some containing RuO{sub 2}, have been processed. Since these noble-metal oxides not only have a limited solubility in the melt, and are also electrically conductive, their accumulation in large amounts on the floor of the SFCM poses a potential electrical hazard to the joule-heated SFCM. The design of the WVDP melter cavity and electrode configuration is specifically intended to allow modest noble-metal accumulation without compromise to melter life or performance. In this study, an attempt has been made to estimate the amount of RuO{sub 2} that has accumulated on the floor of the SFCM since initiation of the WVDP vitrification test program. The total amount of RuO{sub 2} that has been processed in the SFCM to date is shown. This preliminary study indicates that the West Valley SFCM displays a good capability for sweeping insoluble noble metals through and for tolerating the remaining fraction on the floor without compromising melter life or performance over the course of the WVDP radioactive vitrification campaign.
- OSTI ID:
- 5235510
- Report Number(s):
- CONF-890604--
- Conference Information:
- Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 59
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CERAMIC MELTERS
CHALCOGENIDES
DISPERSIONS
ELECTRIC FURNACES
FUEL REPROCESSING PLANTS
FURNACES
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MIXTURES
MODIFICATIONS
NUCLEAR FACILITIES
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PERFORMANCE
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REFRACTORY METAL COMPOUNDS
RHENIUM COMPOUNDS
RHENIUM OXIDES
RUTHENIUM COMPOUNDS
RUTHENIUM OXIDES
SIMULATION
SIZE
SLUDGES
SLURRIES
SUSPENSIONS
TRANSITION ELEMENT COMPOUNDS
VITRIFICATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WEST VALLEY PROCESSING PLANT
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CERAMIC MELTERS
CHALCOGENIDES
DISPERSIONS
ELECTRIC FURNACES
FUEL REPROCESSING PLANTS
FURNACES
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MIXTURES
MODIFICATIONS
NUCLEAR FACILITIES
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PERFORMANCE
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REFRACTORY METAL COMPOUNDS
RHENIUM COMPOUNDS
RHENIUM OXIDES
RUTHENIUM COMPOUNDS
RUTHENIUM OXIDES
SIMULATION
SIZE
SLUDGES
SLURRIES
SUSPENSIONS
TRANSITION ELEMENT COMPOUNDS
VITRIFICATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WEST VALLEY PROCESSING PLANT