Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 258: Issue 2
Diffusion of 137Cs in compacted bentonite: Effect of pH and concentration
Author:
X. Wang Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgung P.O.Box 3640 D-76021 Karlsruhe Germany

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Pages:
315–319
Online Publication Date:
01 Nov 2004
Publication Date:
17 Oct 2003
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1026289821974
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Abstract  

The effect of pH and concentration on the diffusion of 137Cs in the compacted bentonite is studied with capillary method at the ionic strength of 0.1M NaClO4. The apparent diffusion coefficient increases with increasing concentrations if the sorption of radionuclides is largely dependent on the radionuclide concentrations. The apparent diffusion coefficient decreases with increasing pH because most of the radionuclide sorption on the bentonite increases with increasing pH. The interlaminary space contributes significantly to the radionuclide diffusion and sorption in compacted bentonite. The relationship of the apparent diffusion coefficient and the effective diffusion coefficient of 137Cs is also discussed.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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