| Autor: |
S. Heck, A. Miassoedov, Markus Plaschke, E. Soballa, S. Hilpp, Bernhard Kienzler, C. Borkel, M. Schlieker, T. Cron, Volker Metz, Nicolas Finck |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Physics and Chemistry of the Earth, Parts A/B/C. :45-52 |
| ISSN: |
1474-7065 |
| DOI: |
10.1016/j.pce.2014.02.004 |
| Popis: |
This study was performed to obtain insight into the characteristics of contaminated cementitious materials which may result from a light water reactor core melt down accident. Such material arose in a huge amount from the Fukushima disaster. We analyzed the elemental and mineralogical composition of similar, heat-treated material and investigated its radionuclide retention properties. We present the radionuclide retention properties of concrete samples which originally were part of an experiment using a thick-walled concrete recipient that had been heated by simulating a reactor melt down. Batch sorption experiments have been performed with the elements Cs(I), Co(II), and Eu(III) in seawater under aerobic conditions. Sorption coefficients were measured: R s (Eu) ∼5800 ml g −1 and R s (Co) ∼110 ml g −1 . A tentative value for Cs was determined, adulterated by the relatively high release of Cs from the concrete itself. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect