Journal
JOURNAL OF CONTAMINANT HYDROLOGY
Volume 102, Issue 3-4, Pages 285-295Publisher
ELSEVIER
DOI: 10.1016/j.jconhyd.2008.09.019
Keywords
U(VI); Bacterial cells; Multidisciplinary approach; Radioactive wastes
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The presence of actinides in radioactive wastes is Of [major concern because of their potential for migration from the waste repositories and long-term contamination of the environment. Studies have been and are being made on inorganic processes affecting the migration of radionuclides from these repositories to the environment but it is becoming increasingly evident that microbial processes are of importance as well. Bacteria interact with uranium through different mechanisms including, biosorption at the cell surface, intracellular accumulation, precipitation, and redox transformations (oxidation/reduction). The present study is intended to give a brief overview of the key processes responsible for the interaction of actinides e.g. uranium with bacterial strains isolated from different extreme environments relevant to radioactive repositories. Fundamental understanding of the interaction of these bacteria with U will be useful for developing appropriate radioactive waste treatments, remediation and long-term management strategies as well as for predicting the microbial impacts on the performance of the radioactive waste repositories. (c) 2008 Elsevier B.V. All rights reserved.
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