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

DE2004834689

Publication Date	2002
Personal Author	Roden, E. E.; Barnett, M. O.; Lange, C. R.
Page Count	38
Abstract	Although the fundamental 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 are well-understood (Lovley et al., 1991; Gorby and Lovley, 1992; Lovley and Phillips, 1992; Lovley, 1995; Fredrickson et al., 2000; Wielinga et al., 2000; Wielinga et al., 2001), several fundamental scientific questions need to be addressed in order to understand and predict how such treatment procedures would function under in situ conditions in the subsurface. These questions revolve around the dynamic interactions between hydrologic flux and the coupled microbial-geochemical processes which are likely to occur within a redox barrier treatment zone.
Keywords	Sediments Bacteria Immobilization Contaminants Uranium Subsurface redox barriers Dissimilatory metal-reducing bacteria Redox barrier treatment zones Hydrologic flux Coupled microbial-geochemical processes
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Alabama Univ., Tuscaloosa. Dept. Biological Sciences.; 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
Title Note	Rept. for 14 Mar 01 - 14 Nov 02.
NTIS Issue Number	200518

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

Reductive Immobilization of U(VI) in Fe(III) Oxide-Reducing Subsurface Sediments: Analysis of Coupled Microbial-Geochemical Processes in Experimental Reactive Transport Systems. Technical Progress Report.
DE2004834689

Publication Date	2002
Personal Author	Roden, E. E.; Barnett, M. O.; Lange, C. R.
Page Count	38
Abstract	Although the fundamental 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 are well-understood (Lovley et al., 1991; Gorby and Lovley, 1992; Lovley and Phillips, 1992; Lovley, 1995; Fredrickson et al., 2000; Wielinga et al., 2000; Wielinga et al., 2001), several fundamental scientific questions need to be addressed in order to understand and predict how such treatment procedures would function under in situ conditions in the subsurface. These questions revolve around the dynamic interactions between hydrologic flux and the coupled microbial-geochemical processes which are likely to occur within a redox barrier treatment zone.
Keywords	Sediments Bacteria Immobilization Contaminants Uranium Subsurface redox barriers Dissimilatory metal-reducing bacteria Redox barrier treatment zones Hydrologic flux Coupled microbial-geochemical processes
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Alabama Univ., Tuscaloosa. Dept. Biological Sciences.; 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
Title Note	Rept. for 14 Mar 01 - 14 Nov 02.
NTIS Issue Number	200518