Colloid and Radionuclide Retardation (CRR) Results : Are Colloids Mobile ?

The injected bentonite colloids travelled along a 2.23 m dipole flow field in the experimental zone. The recovery of conservative tracers was 100 % at the given flow rates. Colloid recovery calculations were carried out with data from a range of measurement techniques and preliminary results suggest that 80 to 90 % of the colloids passed through the test shear zone with little significant retardation.

Colloid and Radionuclide Retardation Experiment: Are Colloids Mobile graph

 

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.