Chemical durability of Savannah River Plant waste glass as a function of waste loading
The leachability of Savannah River Plant (SRP) waste forms was assessed for glass containing up to 50 wt % simulated waste oxides. Leach tests included standard MCC-1 static tests and pH-buffered solution experiments. An integrated approach combining leachate solution analysis with both bulk and surface analyses was used to study waste glass corrosion as a function of waste loading. Leachate solutions were analyzed by inductively coupled plasma spectroscopy and atomic absorption. Bulk and surface analyses were performed using optical microscopy, wide angle x-ray diffraction, scanning electron microscopy, x-ray energy spectroscopy, and electron microprobe analysis. Scouting tests on key processing and product parameters, such as viscosity, electrical resistivity, and density were also performed. Results of this study show that the durability of SRP waste glass improves due to the presence of the waste, for waste loadings up to 50 wt % because of the formation of protective surface layers. In addition, the data indicate that the practical limit of waste loading will be determined not by chemical durability of the product, but by processing considerations.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 5258618
- Report Number(s):
- DP-MS-81-105; CONF-820547-3; ON: DE82014175; TRN: 82-012919
- Resource Relation:
- Conference: 84. annual meeting of the American Ceramic Society, Cincinnati, OH, USA, 2 May 1982
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
GLASS
CHEMICAL COMPOSITION
DENSITY
ELECTRIC CONDUCTIVITY
LEACHING
VISCOSITY
RADIOACTIVE WASTE PROCESSING
VITRIFICATION
SAVANNAH RIVER PLANT
ABSORPTION SPECTROSCOPY
COMPARATIVE EVALUATIONS
CORROSION
ELECTRON MICROPROBE ANALYSIS
EXPERIMENTAL DATA
OPTICAL MICROSCOPY
PH VALUE
PLASMA
SCANNING ELECTRON MICROSCOPY
SIMULATION
SOLIDIFICATION
SPECTROSCOPY
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DIFFRACTION
DISSOLUTION
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
INFORMATION
MANAGEMENT
MICROANALYSIS
MICROSCOPY
NATIONAL ORGANIZATIONS
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROCESSING
SCATTERING
SEPARATION PROCESSES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE PROCESSING
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