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dc.contributor.authorMarsili, Enrico
dc.contributor.authorBeyenal, Haluk
dc.contributor.authorDi Palma, L.
dc.contributor.authorMerli, Carlo
dc.contributor.authorDohnalkova, Alice
dc.contributor.authorAmonette, James E.
dc.contributor.authorLewandowski, Zbigniew
dc.identifier.citationMarsili E, Beyenal H, Di Palma L, Merli C, Dohnalkova A, Amonette JE, Lewandowski Z, "Uranium removal by sulfate reducing biofilms in the presence of carbonates," Water Sci Technol, 2005 52(7):49-55en_US
dc.description.abstractHexavalent uranium [U(VI)] was immobilized in biofilms composed of the sulfate reducing bacteria (SRB), Desulfovibrio desulfuricans G20. The biofilms were grown in two flat-plate, continuous-flow reactors using lactate as the electron donor and sulfate as the electron acceptor. The growth medium contained uranium U(VI) and the pH was maintained constant using bicarbonate buffer. The reactors were operated for 5 months, and during that time biofilm activity and uranium removal were evaluated. The efficiency of uranium removal strongly depended on the concentration of uranium in the influent, and was estimated to be 30.4% in the reactor supplied with 3 mg/L of U(VI) and 73.9% in the reactor supplied with 30 mg/L of U(VI). TEM and SAED analysis showed that uranium in both reactors accumulated mostly on microbial cell membranes and in the periplasmic space. The deposits had amorphous or poor nanocrystalline structures. Keywords Biofilm; D. desulfuricans; uranium immobilization; uranium reductionen_US
dc.titleUranium removal by sulfate reducing biofilms in the presence of carbonatesen_US
mus.citation.journaltitleWater Science & Technologyen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US

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