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This study investigated the impact of Fe(III)-reducing bacteria on plutonium speciation, finding that Geobacter sulfurreducens and Shewanella oneidensis can reduce plutonium to more soluble forms.

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Abstract

Key findings

  • Geobacter sulfurreducens reduced plutonium to Pu(IV) and Pu(VI) species
  • Shewanella oneidensis reduced plutonium to Pu(IV) species
  • The reduction of plutonium was dependent on the presence of Fe(III) and the bacteria's metabolic activity

Keywords

Shewanella oneidensisGeobacter sulfurreducensRedoxUraniumIron bacteriaGeobacter

Identifiers

DOI
10.1007/s10533-009-9318-8
Journal
Biogeochemistry
Year
2009