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The Effect of Humic Acids on the Element Release from High Level Waste Glass

Published online by Cambridge University Press:  03 September 2012

J. Wei  and
P. Van Iseghem
J. Wei
Affiliation:
SCK-CEN, Boeretang 200, B-2400 Mol, Belgium
P. Van Iseghem
Affiliation:
SCK-CEN, Boeretang 200, B-2400 Mol, Belgium
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Abstract

Eu and Am doped glasses were interacted with synthetic interstitial clay water (SIC) and corresponding reference leachant, humic acids free interstitial solution (IS) to investigate the influence of humic acids on the leaching behaviour of the waste glass. Static leach tests were carried out at 40°C and 90°C. The release of the lanthanide Eu and the actinide Am from the glass was obviously enhanced by the presence of humic acids. The leaching of transition elements, Fe and Ti strongly depends on the humic acids concentration. The leaching of glass matrix components, Al and B was also influenced by the concentrations of humic acids. However, humic acids have little effect on the leaching of glass matrix element Si.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 189
Copyright
Copyright © Materials Research Society 1997

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References

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