Colloid and Radionuclide Retardation Experiment (CRR) Results

The following five requirements must be fulfilled in order that colloid-facilitated transport of radionuclides in a potential repository host rock would be of significance to the long-term performance of a waste repository:

Colloids must be : present, mobile and stable under the given groundwater conditions (geochemical and hydrogeological environment), radionuclide association with the colloids must take place and the association must be irreversible.

Therefore the first outcomes of the CRR experiment are related to these five fundamental questions.

Click on any of the five questions in the diagram below, or use the menu to view more details :

 

Colloid and Radionuclide Retardation Experiment (CRR) Ladder

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Colloid and Radionuclide Retardation Experiment - Results

The GTS underground facilities are also available to interested 3rd parties for underground testing and research. The GTS offers cost-effective access to a fully developed, well characterised underground research facility with round the year logistical support - please contact Dr. Ingo Blechschmidt, Head of the Grimsel Test Site, for further details.