Authors:
X. Wang UMR Ecole des Mines/CNRS/Université Laboratory SUBATECH, Groupe de Radiochimie 4 rue A. Kastler BP 20722 44307 Nantes cedex 03 France

Search for other papers by X. Wang in
Current site
Google Scholar
PubMed
Close
,
G. Montavon UMR Ecole des Mines/CNRS/Université Laboratory SUBATECH, Groupe de Radiochimie 4 rue A. Kastler BP 20722 44307 Nantes cedex 03 France

Search for other papers by G. Montavon in
Current site
Google Scholar
PubMed
Close
, and
B. Grambow UMR Ecole des Mines/CNRS/Université Laboratory SUBATECH, Groupe de Radiochimie 4 rue A. Kastler BP 20722 44307 Nantes cedex 03 France

Search for other papers by B. Grambow in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

The 'in-diffusion method was used to study the diffusion behavior of Eu(III) in compacted bentonite. The results (Kd, apparent and effective diffusion coefficients) derived from the capillary method are in good agreement with the literature data for similar bentonite dry densities and similar radionuclide concentrations, and fits the Fick's second law very well. The method was used to study the effect of solution concentration (10-7-10-3 mol/l) on the diffusion and sorption behavior in compacted bentonite. The experiments were carried out in synthetic groundwater, at room temperature. The results suggested that the diffusion of Eu(III) in the bentonite was independent on the density of bentonite, but dependent on the solution concentration. In agreement to the literature, the Kd values from the capillary experiments are in most cases lower than those from batch experiments, they are about one-half to one-third the value to those from batch experiments. The difference between the Kdvalues from capillary and batch experiments are a strong function of the bulk density of the bentonite. The results suggest that the content of interlaminary space plays a very important role to the transport of Eu(III) in compacted bentonite.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

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)