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Journal of Porous Media
IF: 1.49 5-Year IF: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Print: 1091-028X
ISSN Online: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v7.i3.50
14 pages

Modeling the Decontamination by Electromigration of a Porous Medium

F. Frizon
Atomic Energy Commission, DEN/VRH/DTCD/SPDE/L2ED, 30207 Bagnols-sur-Ceze Cedex, France
Sylvie Lorente
Université de Toulouse; INSA; 135, avenue de Rangueil, F-31 077 Toulouse Cedex 04, France
J. P. Ollivier
Laboratory of Materials and Durability of Constructions, INSA-UPS, Department of Civil Engineering, National Institute of Applied Sciences, 135 Avenue de Rangueil, 31077 Toulouse, France
P. Thouvenot
CEA Cadarache, DEN/DED/SEP/LETD, St Paul-lez-Durance Cedex, France

ABSTRACT

The objective of this article is to provide a better understanding on the transport of radioelements through a porous medium (cementitious material). We focus on electrokinetic methods where an external current and a lixiviant solution accelerate the transport of the radionuclides from the porous medium to the exterior. This work sheds light on the interactions between the porous medium and the radionuclide of interest. A numerical model is developed in order to describe the concentration profiles inside the porous medium during a decontamination test, and to predict the decontamination rate of the sample. The final objective of this work is to assist the development of industrial processes of decontamination.


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