Groundwater Flow and Solute Transport Modeling in the SFR Nuclear Waste RepositoryE. Abarca, A. Idiart, O. Silva, L.M. de Vries, J. Molinero, F. Vahlund, H. von Schenck
Amphos21 Consulting, Barcelona, Spain
Swedish Nuclear Fuel and Waste Management Co., Stockholm, Sweden
The Swedish Nuclear Fuel and Waste Management Company (SKB) operates the underground repository for low- and intermediate-level nuclear waste (SFR) located in Försmark, Sweden. An extension of the SFR is planned to accommodate mainly waste arising from the decommissioning of Swedish nuclear power plants. The long-term safety assessment for the SFR repository takes into account the future hydrogeological conditions in the near-field of the existing facility and the SFR planned extension. The main objective of this study is to estimate groundwater fluxes in the repository under saturated and steady-state conditions, and for different future shoreline positions. These flow values are then used as input to a separate model for radionuclide transport.