Description

Diffusion in groundwater in fractures where transport with flowing water, advection, is small and diffusion in the pores of the rock matrix, including anion exclusion and surface diffusion.

SKB Number

SKB FEP Number

Ge12

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Geosphere

Handling

Explanation of how the FEP is treated

Excavation/operation: Diffusion of salt between mobile and immobile groundwater included in saturated groundwater flow modelling using DarcyTools. Temperate: Diffusion of salt between mobile and immobile groundwater included in saturated groundwater flow modelling using ConnectFlow. Periglacial: Diffusion of salt between mobile and immobile groundwater included in saturated groundwater flow modelling using DarcyTools. Glacial: Diffusion of salt between mobile and immobile groundwater included in saturated groundwater flow modelling using DarcyTools. Modelling of oxygen penetration based on the groundwater flow modelling, matrix diffusion and reactions with matrix minerals. Earthquakes: Not relevant.

References

Bibliographic references to obtain more information

SR-Site Geosphere process report, TR-10-48, Section(s) 1.6, 5.3; SR-Site Main report, TR-11-01, Section(s) 7.4.5