Formation and Reactivity of Biogenic Iron Microminerals

[摘要] Radionuclide and heavy metal contaminants at DOE sites pose immediate and long-term environmental problems. Under the NABIR program, bacteria are being considered for their role in the cycling of these contaminants because they influence many redox reactions in the subsurface. Dissimilatory metal reducing bacteria (DMRB) are particularly important to controlling the biogeochemistry of subsurface environments through enzymatic reduction of iron and manganese minerals. During reduction of FeIII, biogenic FeII phases form at the cell-mineral interface which may profoundly influence metal reduction.

[发布日期] 2002-08-10 [发布机构] University of Guelph

[关键词] Biogeochemistry;Redox Reactions;37 Inorganic, Organic, Physical And Analytical Chemistry;59 Basic Biological Sciences;Manganese