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Microbiologically Enhanced Mixing Across Scales During In-Situ Bioremediation Of Uranium, Reinaldo E. Alcalde
Microbiologically Enhanced Mixing Across Scales During In-Situ Bioremediation Of Uranium, Reinaldo E. Alcalde
McNair Scholars Research Journal
Production of nuclear fuels for weapons and electric energy has resulted in groundwater uranium contamination at Department of Energy (DOE) sites. Reduction of uranium by dissimilatory metal-reducing bacteria (DMRB) is an effective approach for in-situ bioremediation of these sites. In this process, an organic electron donor is typically delivered through a well into groundwater in order to promote the biological reduction of soluble and toxic U(VI) to insoluble and less toxic U(IV). A key challenge is mixing the organic electron donor with U(VI) in groundwater where laminar flow conditions prevail. A potential solution is to enhance reaction beyond the scale …