Electrochemical influences of vitreous leached surfaces
Conference
·
OSTI ID:6242136
Correlation of leached layer surface composition and measured surface potentials for simple glasses and waste glasses indicate that the important components of the leached layers are bound to the surface by electrostatic interactions. Site-binding electrical double layer models can also be applied to radionuclide adsorption onto geologic media since any solid immersed in an electrolyte (simulated groundwater) has a surface charge. Since adsorption of multivalent elements such as Fe, Mn, Tc, Np, Pu, and U are redox sensitive, the surface chemistry and the leaching mechanisms of the waste form and the geologic media are sensitive to the oxygen content of the groundwater. 12 references, 16 figures, 2 tables.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 6242136
- Report Number(s):
- DP-MS-83-130; CONF-840440-7; ON: DE85000766
- 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
36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
ALKALI METALS
BASALT
BORON
BOROSILICATE GLASS
DATA
DISPERSIONS
DISSOLUTION
ELEMENTS
EXPERIMENTAL DATA
GLASS
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INFORMATION
IRON
LEACHATES
LEACHING
MATERIALS
METALS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
POTENTIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REDOX POTENTIAL
ROCK-FLUID INTERACTIONS
ROCKS
SEMIMETALS
SEPARATION PROCESSES
SILICON
SODIUM
SOLUTIONS
SURFACE POTENTIAL
TRANSITION ELEMENTS
VOLCANIC ROCKS
WASTES
WATER
053000* -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
ALKALI METALS
BASALT
BORON
BOROSILICATE GLASS
DATA
DISPERSIONS
DISSOLUTION
ELEMENTS
EXPERIMENTAL DATA
GLASS
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INFORMATION
IRON
LEACHATES
LEACHING
MATERIALS
METALS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
POTENTIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REDOX POTENTIAL
ROCK-FLUID INTERACTIONS
ROCKS
SEMIMETALS
SEPARATION PROCESSES
SILICON
SODIUM
SOLUTIONS
SURFACE POTENTIAL
TRANSITION ELEMENTS
VOLCANIC ROCKS
WASTES
WATER