Progress in evaluation of radionuclide geochemical information developed by DOE high-level nuclear waste repository site projects: report for April-June 1984. Volume 3
Geochemical information relevant to the retention of radionuclides by candidate high-level waste repositories being developed by Department of Energy (DOE) projects is being evaluated by Oak Ridge National Laboratory (ORNL) for the Nuclear Regulatory Commission (NRC). During this report period, the project has evaluated radionuclide sorption and solubility values applicable to the candidate repository site in the Columbia River basalts at the Hanford Reservation. The removal of technetium from pertechnetate-traced groundwater by McCoy Canyon basalt under anoxic redox conditions (air excluded) at 27/sup 0/C was found to be sensitive to the ground-water composition. Sorption of uranium from groundwater by McCoy Canyon basalt under oxic redox conditions at 60/sup 0/C showed low sorption ratios (1.8 to 2.4 L/kg) similar to those previously obtained at 27/sup 0/C. The average sorption ratio for strontium in groundwater onto McCoy Canyon basalt under oxic redox conditions at 27/sup 0/C was 225 L/kg. Column chromatographic experiments with neptunium in groundwater to measure retardation factors at temperatures from 25 to 80/sup 0/C gave calculated sorption ratio values that were in good agreement with the values previously obtained in batch contact tests. 27 references, 5 figures, 4 tables.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6135211
- Report Number(s):
- NUREG/CR-3851-Vol.3; ORNL/TM-9191/V3; ON: TI85003282
- Country of Publication:
- United States
- Language:
- English
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ACTINIDES
ADSORPTION
ALKALINE EARTH METALS
BASALT
CHEMISTRY
DATA
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVALUATED DATA
GEOCHEMISTRY
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INFORMATION
MASS TRANSFER
MATERIALS
METALS
NEPTUNIUM
NUMERICAL DATA
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
RESEARCH PROGRAMS
ROCKS
SOLUBILITY
SORPTION
SORPTIVE PROPERTIES
STRONTIUM
SURFACE PROPERTIES
TECHNETIUM
TRANSITION ELEMENTS
TRANSURANIUM ELEMENTS
URANIUM
VOLCANIC ROCKS
WASTES
WATER