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Applied Radiation and Isotopes: Including Data, Instrumentation and Methods for use in Agriculture, Industry and Medicine
Vol. 70, No: 3, 2012, Pages: 442 - 9


Effect of microorganisms on the plutonium oxidation states

Lukšiene B, Druteikiene R, Peciulyte D, Baltrunas D, Remeikis V, Paškevicius A

Center for Physical Sciences and Technology, Vilnius.

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.

Keywords:microbes from substrates at the low-level radioactive,pH under aerobic conditions,Rhodococcus fascians. Fungi Paecillomyces lilacinus and Absidia spinosa var. spinosa.


 

 

 
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