Interaction of actinides with aerobic soil bacteria

Panak, P. J.; Nitsche, H.
July 2000
AIP Conference Proceedings;2000, Vol. 532 Issue 1, p275
Academic Journal
The production and testing of nuclear weapons, nuclear reactor accidents, and accidents during the transport of nuclear weapons have caused significant environmental contamination with radionuclides. Their migration behavior is controlled by a variety of complex chemical and geochemical reactions such as solubility, sorption on the geo-matrix, hydrolysis, redox reactions, and complexation reactions with inorganic, organic, and biological ligands. In addition, microorganisms can strongly influence the actinides’ transport behavior by both direct interaction (biosorption, bioaccumulation, oxidation, and reduction reactions) and indirect interaction (change of pH and redox potential), thus immobilizing or mobilizing the radionuclides. Extensive studies were performed on the interaction of uranium with different kinds of bacteria (aerobic and anaerobic).1 Nevertheless, very little information is available for transuranic elements such as Np, Am, Cm, and especially Pu.2 © 2000 American Institute of Physics.


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