Development and Operation of a Passive-Flow Treatment System for (Sup 90)Sr-Contaminated Groundwater
Seep C was a free-flowing stream of groundwater that emerged in a narrow valley below the old low-level waste (LLW) disposal trenches in Solid Waste Storage Area 5 (SWSA 5) at Oak Ridge National Laboratory (ORNL). The flow rate of the seep water was strongly influenced by rainfall, and typically ranged from 0.5 to 8 L/min. The seep water entered Melton Branch, a small stream that joins White Oak Creek before exiting the ORNL boundary. The seep water contained high concentrations of {sup 90}Sr (10,000 to 20,000 Bq/L) and, before the full-scale treatment system was installed, contributed about 25% of all the {sup 90}Sr leaving ORNL. Seep C was identified as a primary source of off-site contaminant transport and was designated for an early removal action under the Comprehensive Environmental Response and Liability Act (CERCLA). A passive flow treatment system was chosen as the most cost-effective method for treating the water.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM) (US)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 3741
- Report Number(s):
- ORNL/CP-101378; TRN: AH200113%%150
- Resource Relation:
- Conference: Waste Management '99, Tucson, AZ (US), 02/28/1999--03/04/1999; Other Information: PBD: 28 Feb 1999
- Country of Publication:
- United States
- Language:
- English
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