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Methods of Simulating Low Redox Potential (Eh) for a Basalt Repository

Published online by Cambridge University Press:  25 February 2011

Carol M. Jantzen
Carol M. Jantzen*
Affiliation:
E. I. du Pont de Nemours & Company, Savannah River Laboratory, Aiken, South Carolina 29808
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Abstract

In the selection of a repository for burying vitrified nuclear waste, the leach rate of the waste form in groundwater is of concern. Basaltic groundwaters have inherently low redox potentials which may affect the waste form leach rate. Laboratory simulation of the Eh-pH conditions to be found in a basalt repository can be achieved when crushed basalt is added to deoxygenated deionized water. The effects of other redoxactive waste package components, such as iron, were found to stabilize solution redox potential at different valves under oxic and anoxic conditions. When iron was present, different waste form leach rates were observed with and without oxygen.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 26: Symposium D – Scientific Basis for Nuclear Waste Management VII , 1983 , 613
Copyright
Copyright © Materials Research Society 1984

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References

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