± Radioactive waste: Nuclear Installations and areas for deep geological repositories

Planning perimeter: The geographical zone that is defined by the extension of the geological siting area, taking account of the potential layout of the required facilities on

Geological siting areas for low, intermediate and high level waste.

Cement and clay materials have different porewater chemistry. Chemical interaction between these materials results in dissolution-precipitation reactions that may alter the

Present and future research activities focus on the behaviour of modern spent fuel at repository conditions, the chemical evolution of the repository near field, sorption

A multi-barrier concept is foreseen to ensure safe disposal of spent fuel and high-level waste (SF/HLW), long-lived intermediate-level waste (ILW) and low- and

Co-operations Nagra Major financial contribution Various technical working groups Multinational 7th EU FP: CAST Mont Terri Project Diffusion Retardation, Clay Cement Interaction

A simplified 1-D modelling approach was used for reactive transport calculations using MCOTAC including the 2SPNE SC/CE sorption model.. Sorption competition causes a reduction

Table 4.1: Sorption values measured at trace concentrations for host rocks and MX-80 bentonite, and the predictions based on illite and montmorillonite sorption data (B AEYENS et