Reactive transport modelling of iron-bentonite interface evolution

Wilson, J.*; Watson, C.*; Benbow, S.*; Savage, D.*; Sasamoto, Hiroshi

Iron steel overpack will be surrounded by bentonite buffer as a engineering barrier system for the high-level radioactive waste disposal. It is concerned that iron-bentonite interactions result in the alteration of montmorillonite to non-swelling Fe-rich minerals. In the present study, reactive transport modeling of iron-bentonite interface evolution has been conducted to evaluate the long-term behavior of bentonite stability. A number of model cases were produced in order to assess which processes are likely to dominate at iron-bentonite interfaces.

Language	:	English
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Meeting title	:	5th International Meeting on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement
Held date	:	2012/10
Location (city)	:	Montpellier
Location (country)	:	France
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Keywords	:	no keyword
Research Facility	:	ENTRY(地層処分基盤研究施設)
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Registration No. : BB20120094
JAEA Abstracts No. :
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