Effect of microorganisms on the plutonium oxidation states

Benedikta Lukšienė; Rūta Druteikienė; Dalia Pečiulytė; Dalis Baltrūnas; Vidmantas Remeikis; Algimantas Paškevičius

doi:10.1016/j.apradiso.2011.11.016

Effect of microorganisms on the plutonium oxidation states

Appl Radiat Isot. 2012 Mar;70(3):442-9. doi: 10.1016/j.apradiso.2011.11.016. Epub 2011 Nov 12.

Authors

Benedikta Lukšienė¹, Rūta Druteikienė, Dalia Pečiulytė, Dalis Baltrūnas, Vidmantas Remeikis, Algimantas Paškevičius

Affiliation

¹ Center for Physical Sciences and Technology, Vilnius, Lithuania. bena@ar.fi.lt

PMID: 22112595
DOI: 10.1016/j.apradiso.2011.11.016

Abstract

Particular microbes from substrates at the low-level radioactive waste repository in the Ignalina NPP territory were exposed to (239)Pu (IV) at low pH under aerobic conditions. Pu(III) and Pu(IV) were separated and quantitatively evaluated using the modified anion exchange method and alpha spectrometry. Tested bacteria Bacillus mycoides and Serratia marcescens were more effective in Pu reduction than Rhodococcus fascians. Fungi Paecillomyces lilacinus and Absidia spinosa var. spinosa as well as bacterium Rhodococcus fascians did not alter the plutonium oxidation state.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bacteria / metabolism*
Fungi / metabolism*
Hydrogen-Ion Concentration
Oxidation-Reduction
Plutonium / metabolism*

Substances

Plutonium