Andrew Elwood Madden

University of Oklahoma

0000-0003-2091-2667

Projects

Electron donor dependence of the extent and forms of microbially reducible uranium from contaminated sediments

Lead Institution

University of Oklahoma

Principal Investigator

Andrew Elwood Madden

Project type

Exploratory Research

Uranium immobilization has been achieved in microcosms containing contaminated sediments from the DOE-Oak Ridge Reservation. Removal of uranium from the solution phase is accomplished through the…

Implications of U sequestration in U-Al-SO4-Si grain coatings for remediation and stewardship

Lead Institution

University of Oklahoma

Principal Investigator

Andrew Elwood Madden

Project type

Exploratory Research

Sediment and groundwater adjacent to the DOE Oak Ridge Y-12 plant is highly contaminated with a variety of radionuclide, metal, and organic species. Previous remediation efforts included soil…

Deep time perspectives on watershed-scale uranium hydrobiogeochemistry in Unaweep Canyon, CO

Lead Institution

University of Oklahoma

Principal Investigator

Andrew Elwood Madden

Project type

Limited Scope

We request rapid-access approval to support the analysis of one each of red, green, and bleached Cutler Formation sedimentary rock samples by Mössbauer spectroscopy by Dr. Ravi Kukkadapu of the EMSL…