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Radionuclide sorption and desorption reactions with interbed materials from the Columbia River basalt formation

Conference ·
OSTI ID:7171290
The sorption and desorption behavior of radionuclides in groundwater-interbed systems of the Columbia River basalt formation was investigated. Radionuclides chosen for study were those of concern in assessing the safety of a high-level radioactive waste repository in basalt (isotopes of technetium, neptunium, plutonium, uranium, americium, cesium, strontium, and radium). Sandstone and tuff materials from selected interbed layers between basalt flows were used in these experiments. Effects of groundwater composition and redox potential (Eh) on radionuclide sorption and desorption on the geologic solids were studied. Sorption and desorption isotherms were obtained for sorption of radionuclides under oxidizing and reducing conditions. The Freundlich equation accurately describes most of these isotherms. 10 refs., 4 figs., 7 tabs.
Research Organization:
Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
Sponsoring Organization:
DOE/RW
DOE Contract Number:
AC06-77RL01030
OSTI ID:
7171290
Report Number(s):
RHO-BW-SA-291; CONF-830303--18; ON: TI90006858
Country of Publication:
United States
Language:
English

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ACTINIDE ISOTOPES
ALKALI METAL ISOTOPES
ALKALI METALS
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
AMERICIUM ISOTOPES
BASALT
CALCIUM
CESIUM ISOTOPES
COLUMBIA RIVER BASIN
DESORPTION
ELEMENTS
ENVIRONMENTAL TRANSPORT
EQUATIONS
GROUND WATER
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
ION EXCHANGE
ISOTHERMS
ISOTOPES
MANAGEMENT
MASS TRANSFER
METALS
NEPTUNIUM ISOTOPES
OXYGEN COMPOUNDS
PLUTONIUM ISOTOPES
POTASSIUM
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION
RADIUM ISOTOPES
REDOX POTENTIAL
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SODIUM
SORPTION
STRONTIUM ISOTOPES
TECHNETIUM ISOTOPES
TEMPERATURE EFFECTS
TUFF
URANIUM ISOTOPES
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
WATER