Effects of various calcined ash and sludge waste loadings on the durability of a soda-lime-silica glass
A commercially available joule-heated glass furnace system is currently being evaluated at Mound as a means of reducing the volume of low-level radioactive waste similar to that found in light water reactor facilities. The furnace utilizes molten soda-lime-silica to initiate and support combustion of the waste feed and to serve as an immobilization matrix. First, corrosion studies were performed to determine the result that various waste loadings of glass would have on the refractory lining the furnace. Second, the chemical durability of soda-lime-silica under various waste loadings was assessed to determine its resistance to leaching under conditions similar to those encountered at waste disposal sites. Results proved that, although corrosion was quite significant for pure soda-lime-silica and a 10% waste loading, by the time a waste loading of 40% was achieved, the effects of corrosion were virtually nil. The temperature dependence of the corrosion caused by a 0% waste loading of soda-lime-silica on the refractory was also investigated. With an increase in temperature to 2650/sup 0/F, corrosion more than tripled. As a result, incineration and idle temperature is being maintained at, or below, 2400/sup 0/F. In conclusion, from the fact that the higher waste loading of soda-lime glass produced both increased chemical durability and increased refractory life, waste loadings in excess of 40%, and as high as 80%, may be achieved without adverse effect to the glass furnace system or its effectiveness for immobilizing radioactive waste.
- Research Organization:
- Monsanto Research Corp., Miamisburg, OH (USA). Mound
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 6671157
- Report Number(s):
- MLM-3017(OP); CONF-821122-1; ON: DE83001537; TRN: 82-026817
- Resource Relation:
- Conference: Conference on glass and ceramic materials, Oak Ridge, TN, USA, 8 Nov 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FURNACES
CORROSION
MATERIALS
GLASS
LEACHING
STABILITY
RADIOACTIVE WASTE PROCESSING
COMBUSTION
EVALUATION
LOW-LEVEL RADIOACTIVE WASTES
SOLIDIFICATION
REFRACTORIES
BWR TYPE REACTORS
LIMESTONE
PWR TYPE REACTORS
SILICA
SODIUM CARBONATES
TEMPERATURE DEPENDENCE
VITRIFICATION
VOLUME
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
DISSOLUTION
MANAGEMENT
MINERALS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REACTORS
ROCKS
SEDIMENTARY ROCKS
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER COOLED REACTORS
WATER MODERATED REACTORS
052001* - Nuclear Fuels- Waste Processing