Defense waste processing facility precipitate hydrolysis process
Sodium tetraphenylborate and sodium titanate are used to assist in the concentration of soluble radionuclide in the Savannah River Plant's high-level waste. In the Defense Waste Processing Facility, concentrated tetraphenylborate/sodium titanate slurry containing cesium-137, strontium-90 and traces of plutonium from the waste tank farm is hydrolyzed in the Salt Processing Cell forming organic and aqueous phases. The two phases are then separated and the organic phase is decontaminated for incineration outside the DWPF building. The aqueous phase, containing the radionuclides and less than 10% of the original organic, is blended with the insoluble radionuclides in the high-level waste sludge and is fed to the glass melter for vitrification into borosilicate glass. During the Savannah River Laboratory's development of this process, copper (II) was found to act as a catalyst during the hydrolysis reactions, which improved the organic removal and simplified the design of the reactor.
- Research Organization:
- Savannah River Lab., Aiken, SC (USA)
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 5429795
- Report Number(s):
- DP-MS-85-132; CONF-860317-55; ON: DE86015677
- Resource Relation:
- Conference: Waste management '86, Tucson, AZ, USA, 2 Mar 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Processing of tetraphenylborate precipitates in the Savannah River Site Defense Waste Processing Facility
Processing of tetraphenylborate precipitates in the Savannah River Site Defense Waste Processing Facility
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HIGH-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
CESIUM 137
HYDROLYSIS
ORGANIC BORON COMPOUNDS
PLUTONIUM
PRECIPITATION
SODIUM COMPOUNDS
STRONTIUM 90
TITANATES
VITRIFICATION
ACTINIDES
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
EVEN-EVEN NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
LYSIS
MANAGEMENT
MATERIALS
METALS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
SEPARATION PROCESSES
SOLVOLYSIS
STRONTIUM ISOTOPES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSURANIUM ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YEARS LIVING RADIOISOTOPES
052001* - Nuclear Fuels- Waste Processing