Investigation of leachates and a geochemical barrier for the WSSRAP disposal cell
Conference
·
OSTI ID:469801
- Weldon Spring Site Remedial Action Project, St. Charls, MO (United States)
An on-site disposal cell is the selected alternative for sequestering contamination removed from the Weldon Spring Remedial Action Project (WSSRAP). This contamination comprises nitroaromatic and low-level radioactive wastes from the former Weldon Spring Ordinance Works and the former Weldon Spring Chemical Plant, respectively. The disposal cell is designed to prevent migration of contaminants into the environment and to remain {open_quotes}stable{close_quotes} for at least 1,000 years. Construction is planned to begin in 1997. The disposal cell consists of structural components to control leachate migration from the base of the cell, to prevent radon emanation from the top of the cell, and to maintain the physical stability of the cell. Chemical stabilization/solidification (CSS) will be used to improve the geotechnical properties of the fine raffinate sludges, which were the by-products of uranium processing at the Weldon Spring Chemical Plant. Contaminated soils and other materials will be placed in the cell without additional processing. During the cell design process, the quality of leachates that would emanate from the wastes was unknown. Understanding the type of leachate and potential contaminant levels was not only important to design of future leachate treatment systems but also to evaluate the effectiveness of the disposal cell itself.
- OSTI ID:
- 469801
- Report Number(s):
- CONF-960804--Vol.1
- Country of Publication:
- United States
- Language:
- English
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