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Prediction of the Weathering Properties of Minerals Based on the Ion-Ion Interaction Potential

Published online by Cambridge University Press:  17 March 2011

Slavica Raicevic ,
Judith V. Wright ,
Jasmina Vujic  and
James L. Conca
Slavica Raicevic
Affiliation:
Institute of Nuclear Sciences VINCA, Radiation and Environmental Protection Laboratory, P.O. Box 522, 11001 Belgrade, Serbia and Montenegro, [email protected]
Judith V. Wright
Affiliation:
PIMS NW, Inc., 201 North Edison, Suite 226, Richland, WA 99336, U.S.A., [email protected]
Jasmina Vujic
Affiliation:
University of California, Department of Nuclear Engineering, 4105 Etcheverry Hall, Berkeley, CA 94720, U.S.A., [email protected]
James L. Conca
Affiliation:
Los Alamos National Laboratory, 115 North Main Street, Carlsbad, NM 88220, U.S.A., [email protected]
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Abstract

Selection of solid matrix for immobilization of nuclear waste and of geological sites for its disposal represents a complex and consuming task. Previously, we demonstrated that the ion-ion interaction potential (IIIP), representing the main term of the cohesive energy, can be used for estimation of stability of solid matrix/impurity systems. Here we demonstrated a strong correlation between the weathering properties of minerals and their IIIP. Based on these results we proposed a simple theoretical criterion which can be used for assessment of the long term stability of solid matrix for immobilization of radioactive and toxic metals. This criterion was applied in analysis of stability of autunites and some possible practical consequences of results obtained for immobilization of uranium by apatite are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 824: Symposium CC – Scientific Basis for Nuclear Waste Management XXVIII , 2004 , CC8.34
Copyright
Copyright © Materials Research Society 2004

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