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Introduced Materials and Colloid Formation: a Report on the Current State of Knowledge

Published online by Cambridge University Press:  25 February 2011

A. Meike
Affiliation:
Earth Sciences Division, LLNL, PO Box 808 Livermore California 94550
C. Wittwer
Affiliation:
BRGM Dépt de lΈau, Av. de Concyr, BP 6009, 45060 Orleans Cedex 02, France
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Abstract

This paper reviews potential sources of colloids and enhanced adsorption of radionuclides that may stem from materials introduced into a repository setting. Three major sources of colloids are examined: metals, cements, and organics. The sensitivity of colloids to chemical species, pH, time, temperature, radiolysis, redox state, gradients of the aforementioned variables, and microbial activity is shown. We consider these influences on colloid formation and sorption with respect to introduced materials. We also discuss areas that have not been addressed but may have consequences in a repository setting.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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