National Technical Reports Library

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Reductive Immobilization of U(VI) in Fe(III) Oxide-Reducing Sediments: Analysis of Coupled Microbial-Geochemical Processes in Experimental Reactive Transport Systems.

DE2005841500

Publication Date	2005
Page Count	16
Abstract	The purpose of this research was to provide information to DOE on microbiological and geochemical processes underlying the potential use of dissimilatory metal-reducing bacteria (DMRB) to create subsurface redox barriers for immobilization of uranium and other redox-sensitive metal/radionuclide contaminants that were released to the environment in large quantities during Cold War nuclear weapons manufacturing operations. Several fundamental scientific questions were addressed in order to understand and predict how such treatment procedures would function under in situ conditions in the subsurface. These questions revolved the coupled microbial-geochemical phenomena which are likely to occur within a redox barrier treatment zone, and on the dynamic interactions between hydrologic flux and biogeochemical process rates.
Keywords	Uranium Sediments Iron Immobilization Microbiology Geochemistry Kinetics Microbial processes Subsurface Transport Sorption DMRB(Dissimilatory metal-reducing bacteria) Reactive transport
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Alabama Univ., Tuscaloosa. Dept. of Aerospace Engineering and Mechanics.; Auburn Univ., AL. Dept. of Civil Engineering.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Auburn Univ., AL. Dept. of Civil Engineering. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200607

Reductive Immobilization of U(VI) in Fe(III) Oxide-Reducing Sediments: Analysis of Coupled Microbial-Geochemical Processes in Experimental Reactive Transport Systems.

Reductive Immobilization of U(VI) in Fe(III) Oxide-Reducing Sediments: Analysis of Coupled Microbial-Geochemical Processes in Experimental Reactive Transport Systems.
DE2005841500

Publication Date	2005
Page Count	16
Abstract	The purpose of this research was to provide information to DOE on microbiological and geochemical processes underlying the potential use of dissimilatory metal-reducing bacteria (DMRB) to create subsurface redox barriers for immobilization of uranium and other redox-sensitive metal/radionuclide contaminants that were released to the environment in large quantities during Cold War nuclear weapons manufacturing operations. Several fundamental scientific questions were addressed in order to understand and predict how such treatment procedures would function under in situ conditions in the subsurface. These questions revolved the coupled microbial-geochemical phenomena which are likely to occur within a redox barrier treatment zone, and on the dynamic interactions between hydrologic flux and biogeochemical process rates.
Keywords	Uranium Sediments Iron Immobilization Microbiology Geochemistry Kinetics Microbial processes Subsurface Transport Sorption DMRB(Dissimilatory metal-reducing bacteria) Reactive transport
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Alabama Univ., Tuscaloosa. Dept. of Aerospace Engineering and Mechanics.; Auburn Univ., AL. Dept. of Civil Engineering.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Auburn Univ., AL. Dept. of Civil Engineering. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200607