Supernatant treatment of the final decontamination method for the supernatant treatment system: Progress report for the period March 1982-September 1987
As part of the West Valley Demonstration Project (WVDP), the PUREX supernatant sored in tank 8D-2 will be partially decontaminated before encapsulation in the final glass form. This report discusses selection of a method for removing Cs-137, the major radioactive ion in the supernatant. The methods considered were electrodialysis; hyperfiltration; precipitation with ferrocyanide, NATPB, and PTA; organic ion exchange using CS-100 and a biologically derived method; chelation using DeVoe/Holbein compositions; and inorganic ion exchange with Durasil, natural zeolites, IE-95 and IE-96 medias. After extensive evaluation of experimental data with process constraints taken into account, the inorganic ion exchange media IE-96 (Linde Ionsiv IE-96 synthetic zeolite) was chosen for cesium recovery. IE-96 was chosen because of high sorption rate, high decontamination factor, ion exchange capacity, and compatibility with the glass formers for borosilicate glass in direct melter feed. This report describes the principal design criteria and the process design developed for use in processing the high-level waste supernatant. 4 refs., 10 tabs.
- Research Organization:
- West Valley Nuclear Services Co., Inc., West Valley, NY (USA)
- DOE Contract Number:
- AC07-81NE44139
- OSTI ID:
- 6309190
- Report Number(s):
- DOE/NE/44139-35; ON: DE87014109
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM 137
CESIUM ISOTOPES
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DIALYSIS
ELECTRODIALYSIS
HIGH-LEVEL RADIOACTIVE WASTES
ION EXCHANGE CHROMATOGRAPHY
ISOTOPES
LIQUID WASTES
MANAGEMENT
MATERIALS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PRECIPITATION
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RADIOISOTOPES
REMOVAL
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLIDIFICATION
SULFATES
SULFUR COMPOUNDS
UNDERGROUND DISPOSAL
VITRIFICATION
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YEARS LIVING RADIOISOTOPES