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Migration of Anionic Species of Radioactive Cobalt through Soil

Published online by Cambridge University Press:  21 February 2011

Toshihiko Ohnuki  and
David E. Robertson
Toshihiko Ohnuki
Affiliation:
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Shirakata, Tokai, Ibaraki, 319–11, Japan
David E. Robertson
Affiliation:
Chemical Science Department, Pacific Northwest Laboratories, Richland, WA, 99352, USA
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Abstract

The migration of an anionic species of 60Co through soil has been examined utilizing data on the migration of radionuclides leached from an aqueous waste disposal site. Correlation coefficients between concentrations of the anionic species of 60Co and those of the particulate, cationic and non-ionic species of 60Co reveal that the anionic species of 60Co was not interconverted from the other species during migration. The cross correlations of changes in the concentrations of the anionic species of 60Co with time between three different down gradient positions give a calculated retardation factor of the anionic species of 60Co of approximately 19, being 1200 times lower than the results of laboratory measurements. The average concentration distribution of the anionic species of 60Co suggests that the migration of the anionic species of 60Co consists of two migration fractions which were driven by different migration mechanisms.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 176: Symposium U – Scientific Basis for Nuclear Waste Management XIII , 1989 , 615
Copyright
Copyright © Materials Research Society 1990

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References

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