Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-28T10:34:19.800Z Has data issue: false hasContentIssue false
  • English
  • Français

The Compilation of Geochemical Data Bases for Performance Assessment of a Planned Repository in the Opalinus Clay in Northern Switzerland

Published online by Cambridge University Press:  01 February 2011

Bernhard Schwyn  and
Paul Wersin
Bernhard Schwyn
Affiliation:
National Cooperative for the Disposal of Radioactive Waste (Nagra), 5430 Wettingen, Switzerland
Paul Wersin
Affiliation:
National Cooperative for the Disposal of Radioactive Waste (Nagra), 5430 Wettingen, Switzerland
Get access

Abstract

Chemical retention of radionuclides in the near field and in the host rock is an important safety pillar within the Swiss concept for a radioactive waste repository. Geochemical databases for solubility limits in cement and bentonite porewater and sorption / diffusion in cement, compacted bentonite and Opalinus Clay were compiled for use in safety assessment calculations. The databases are presented for selected safety-relevant radioelements. In contrast to earlier safety assessment studies Kd values were not truncated at 5 m3 kg−1 and values well above 10 m3 kg−1 (e.g. for actinides) are reported.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 761
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Nagra, , Nagra Technical Report 02–05, Switzerland (2002).Google Scholar
2. Hummel, W., Berner, U., Curti, E., Pearson, J.F., and Thoenen, T., Nagra Technical Report 02–16, Switzerland and Universal Publishers/ uPublish.com, Parkland, Florida (2002).Google Scholar
3. Hummel, W., Berner, U., Nagra Technical Report 02–12, Switzerland (2002).Google Scholar
4. Curti, E. and Wersin, P., Nagra Technical Report 02–09, Switzerland (2002).Google Scholar
5. Wersin, P., Johnson, L.H., Schwyn, B., Berner, U., and Curti, E., Nagra Technical Report 02–13, Switzerland (2003).Google Scholar
6. Nagra, , Nagra Technical Report 02–03, Switzerland (2002).Google Scholar
7. Berner, U., Nagra Technical Report 02–10, Switzerland (2002).Google Scholar
8. Berner, U., Nagra Technical Report 02–22, Switzerland (2003).Google Scholar
9. Wieland, E. and van Loon, L., Nagra Technical Report 02–20, Switzerland (2002).Google Scholar
10. Bradbury, M.H. and Baeyens, B., Nagra Technical Report 02–18, Switzerland (2003).Google Scholar
11. Bradbury, M.H. and Baeyens, B., Nagra Technical Report 02–19, Switzerland (2003).Google Scholar
12. Bradbury, M.H. and Baeyens, B., Nagra Technical Report 02–17, Switzerland (2002).Google Scholar
13. Yu, J.-W., Neretnieks, I., SKB Technical Report 97–12, Sweden (1997).Google Scholar
14. Nagra, , Nagra Technical Report 93–22, Switzerland (1994).Google Scholar
15. Nagra, , Nagra Technical Report 94–06, Switzerland (1994).Google Scholar