Slag-based materials for toxic metal and radioactive waste stabilization
The salt solution produced at the Defense Waste Processing Facility (DWPF) is a low-level hazardous waste and has both corrosive and metal toxicity characteristics. A wasteform was designed to stabilize this solution. The objectives were: to eliminate the hazardous characteristics of the waste; and to minimize the release of potential contaminants, such as NO{sub 3}{sup {minus}}, so that drinking water standards would be maintained for groundwater at the perimeter of the disposal site. The ability to produce the wasteform in high volumes and emplace it in an engineered landfill was also necessary for treating and disposing of the large amount of waste. EP toxicity and TCLP testing was conducted to determine whether various saltstone mixes qualified as nonhazardous according to EPA guidelines. Impact of the design landfill on the groundwater was modeled by numeric methods. Data from laboratory leaching studies, large-scale saltstone lysimeter experiments, and disposal site characterization studies were used in the performance assessment. 9 refs., 3 figs., 3 tabs.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 7203420
- Report Number(s):
- DP-MS-87-95-Rev.2; CONF-890607-2-Rev.2; ON: DE90009251
- Resource Relation:
- Conference: 3. international conference on fly ash, silica fume, slag, and natural pozzolans in concrete, Trondheim (Norway), 19-26 Jun 1989
- Country of Publication:
- United States
- Language:
- English
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RADIOACTIVE WASTE PROCESSING
WASTE FORMS
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BLAST FURNACES
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CHROMIUM HYDROXIDES
CHROMIUM IONS
FLY ASH
LEACHING
METALS
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SAVANNAH RIVER PLANT
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CHROMIUM COMPOUNDS
DISSOLUTION
ELEMENTS
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INTERMEDIATE MASS NUCLEI
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NATIONAL ORGANIZATIONS
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TECHNETIUM ISOTOPES
TRANSITION ELEMENT COMPOUNDS
US AEC
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WASTE PROCESSING
WASTES
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