Work

Subsurface Biogeochemical Heterogeneity (Field-scale removal of U(VI) from groundwater in an alluvial aquifer by electron donor amendment)

Year: 2006

Type: report

Abstract: Determine if biostimulation of alluvial aquifers by electron donor amendment can effectively remove U(VI) from groundwater at the field scale. Uranium contamination in groundwater is a significant problem at several DOE sites. In this project, the possibility of accelerating bioreduction of U(VI) to U(IV) as a means of decreasing U(VI) concentrations in groundwater is directly addressed by conducting a series of field-scale experiments. Scientific goals include demonstrating the quantitative linkage between microbial activity and U loss from groundwater and relating the dominant terminal electron accepting processes to the rate of U loss. The project is currently focused on understanding the mechanisms for unexpected long-term ({approx}2 years) removal of U after stopping electron donor amendment. Results obtained in the project successfully position DOE and others to apply biostimulation broadly to U contamination in alluvial aquifers.

DOI: 10.2172/895879

Authors: USDOE - Office of Science (SC), Philip Long, Derek Lovley, A. N'Guessan, Kelly Nevin, C. Resch, Evan Arntzen, Jenny Druhan, Aaron Peacock, Brett Baldwin, Dick Dayvault, Dawn Holmes, Ken Williams, Susan Hubbard, Steve Yabusaki, Yilin Fang, D. White, John Komlos, Peter Jaffe

Institutions: Pacific Northwest National Laboratory, University of Massachusetts Amherst, University of Tennessee at Knoxville, United States Department of Energy, Lawrence Berkeley National Laboratory, Princeton University

Language: English

Topic: Radioactive element chemistry and processing

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: gold

OpenAlex ID: W1555283077

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