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Solid-Phase Capture

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Microbes are known to transform metals and radionuclides, through a range of mechanisms including redox transformations, the adsorption of metals onto cell surfaces and intracellular uptake. Processes, including redox transformations, which immobilise the radionuclides into the solid-phase, are particularly desirable as these can provide a stable and long lasting remediation strategy. Recent research investigating the potential use of microorganisms for remediation of radionuclide contaminated land has focussed on microbially stimulated reduction of uranium (VI) but has not studied other biomineralisation processes. This research investigates a range of biomineralisation processes and their effect on radionuclides in complex microbial, geological and geochemical conditions, as would be found at radionuclide contaminated sites.

 

Schematic illustrating solid-phase capture of radionuclides using bacteria

Last Updated on Monday, 18 July 2011 14:21  

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