Coolside waste management research. Quarterly report, October 1994--December 1994
The objective of this project is to investigate chemical, mineralogical, and physical changes in Coolside waste materials to determine suitability for environmentally safe disposal. A compilation of the field lysimeter leachate data from the lowest leachate transport tubes indicates a major shift in the solution mineral equilibria regime. The pH of the L3 lysimeter ({approximately}12.2) and elemental concentrations in the leachates is grossly different from L2 and L1 (e.g., pH {approximately}10.5). Sulfate averaged to date {approximately}10,000 to 12,000 ppm in L1 and L2 compared to {approximately}1,700 ppm in L3. As the materials have the same composition, the preconditioning regime of the materials appears to have a major influence on the leachate chemistry. Soil gas measurements have now been completed for most of a growing season. C0{sub 2} concentrations as high as >26,000 pm were found in the soil gas. The distribution of the gas in the soil indicates that the FGD material is a major sink for the gas and that carbonation reactions are a major force in the geochemical regime for these materials.
- Research Organization:
- Kentucky Univ., Lexington, KY (United States). Center for Applied Energy Research
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC21-91MC28162
- OSTI ID:
- 82420
- Report Number(s):
- DOE/MC/28162-4015; ON: DE95000085; TRN: 95:005167
- Resource Relation:
- Other Information: PBD: Feb 1995
- Country of Publication:
- United States
- Language:
- English
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