MICROBIAL TRANSFORMATIONS OF PLUTONIUM AND IMPLICATIONS FOR ITS MOBILITY.

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The current state of knowledge of the effect of plutonium on microorganisms and microbial activity is reviewed, and also the microbial processes affecting its mobilization and immobilization. The dissolution of plutonium is predominantly due to their production of extracellular metabolic products, organic acids, such as citric acid, and sequestering agents, such as siderophores. Plutonium may be immobilized by the indirect actions of microorganisms resulting in changes in Eh and its reduction from a higher to lower oxidation state, with the precipitation of Pu, its bioaccumulation by biomass, and bioprecipitation reactions. In addition, the abundance of microorganisms in Pu-contaminated soils, wastes, … continued below

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33 pages

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Francis, A. J. September 30, 2000.

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The current state of knowledge of the effect of plutonium on microorganisms and microbial activity is reviewed, and also the microbial processes affecting its mobilization and immobilization. The dissolution of plutonium is predominantly due to their production of extracellular metabolic products, organic acids, such as citric acid, and sequestering agents, such as siderophores. Plutonium may be immobilized by the indirect actions of microorganisms resulting in changes in Eh and its reduction from a higher to lower oxidation state, with the precipitation of Pu, its bioaccumulation by biomass, and bioprecipitation reactions. In addition, the abundance of microorganisms in Pu-contaminated soils, wastes, natural analog sites, and backfill materials that will be used for isolating the waste and role of microbes as biocolloids in the transport of Pu is discussed.

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33 pages

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  • Other Information: PUBLISHED IN : PLUTONIUM IN THE ENVIRONMENT, EDITOR A. KUDO, VOL.1, PP.201-219, 2000, ELSEVIER SCIENCE LTD., CO., UK

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  • Report No.: BNL--67386
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 803411
  • Archival Resource Key: ark:/67531/metadc734039

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Office of Scientific & Technical Information Technical Reports

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  • September 30, 2000

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  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 9, 2015, 1:17 p.m.

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Francis, A. J. MICROBIAL TRANSFORMATIONS OF PLUTONIUM AND IMPLICATIONS FOR ITS MOBILITY., book, September 30, 2000; Upton, New York. (https://digital.library.unt.edu/ark:/67531/metadc734039/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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