Biogeochemical Cycling and Environmental Stability of Pu Relevant to Long-Term Stewardship of DOE Sites
The overall objective of this proposed research is to understand the biogeochemical cycling of Pu in environments of interest to long-term DOE stewardship issues. Central to Pu cycling (transport initiation to immobilization) is the role of microorganisms. The hypothesis underlying this proposal is that microbial activity is the causative agent in initiating the mobilization of Pu in near-surface environments: through the transformation of Pu associated with solid phases, production of extracellular polymeric substances (EPS) carrier phases, and the creation of microenvironments. Also, microbial processes are central to the immobilization of Pu species, through the metabolism of organically complexed Pu species and Pu associated with extracellular carrier phases and the creation of environments favorable for Pu transport retardation.
- Research Organization:
- Colorado School of Mines, Golden, CO; Brookhaven National Lab. (BNL), Upton, NY (United States); Texas A&M University of Galveston, Galveston, TX
- Sponsoring Organization:
- USDOE Office of Science (SC)
- OSTI ID:
- 896787
- Report Number(s):
- ERSD-1024773-2006; R&D Project: ERSD 1024773
- Country of Publication:
- United States
- Language:
- English
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Biogeochemical Cycling and Environmental Stability of Pu Relevant to Long-Term Stewardship of DOE Sites
Biogeochemical Cycling and Environmental Stability of Pu Relevant to Long-Term Stewardship of DOE Sites