Oxidation/reduction of multivalent actinides in the subsurface

Rittmann, B. E.; Reed, D. T.; Aase, S. B.; Kropf, A. J.
July 2000
AIP Conference Proceedings;2000, Vol. 532 Issue 1, p63
Academic Journal
The important role of oxidation state and redox chemistry on the mobility of multivalent actinides in the subsurface is beyond dispute. These actinides, primarily uranium, neptunium and plutonium, are likely to exist in more than one oxidation state that in many cases have very different mobility in the subsurface. An understanding of the key factors that influence the oxidation state distribution in the subsurface is essential to predicting actinide migration. Our research here at Argonne has focused on two key factors that help define actinide speciation in the subsurface. These are microbiological interactions and interactions with anthropogenic organic complexants. © 2000 American Institute of Physics.


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