The aims of the CFM project with its laboratory, in-situ and modelling approaches are to:

  • Examine colloid generation rates and mechanisms at the Engineered Barrier System (EBS) – host rock boundary under in-situ conditions
  • Evaluate the long-distance(~10m scale) migration behaviour of EBS-derived colloids in a water-conducting feature in a repository relevant flow system (i.e. with a very low flow rate/water flux)
  • Study the long-term geochemical behaviour (mobility, mineralisation, colloid formation, etc.) of radionuclides at the EBS – host rock boundary
  • Examine the reversibility of radionuclide uptake onto colloids
  • Gain experience in long-term monitoring of radionuclide/colloid propagation near a repository
  • Apply the results to improve repository performance assessments
  • Contribute to the optimisation of EBS design and to the 'monitoring' debate

For more information please contact : Ingo Blechschmidt, This email address is being protected from spambots. You need JavaScript enabled to view it.

Colloid Formation and Migration Experiment