Approaches to sorption modeling for high-level waste performance assessment : D. R. Turner & S. A. Sassman, Journal of Contaminant Hydrology, 21(1–4), 1996, pp 311–332
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 172 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0148-9062
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✦ Synopsis
Elemental solubility limits are employed in many performance assessment studies of the disposal of high-level radioactive waste. A comparison of solubility databases used in a number of recent assessments from Canada, Finland, Japan, Sweden, Switzerland and the USA is presented. Despite similarities in the chemical conditions under which such solubilities are defined, there are very large ranges in the values selected for most elements. In some cases, differences in solubilities can be attributed to differences in the thermodynamic databases used but, due to generally incomplete documentation, detailed analysis of the reasons for such discrepancies is precluded. A key factor, however, is the fairly subjective choice of the solid phase considered to be 'solubility-limiting'.
Procedures are recommended which would increase the transparency of solubility database compilation in future analyses.