Description

Concerns the stimulation of microbial processes due to additives in the concrete bottom plate and consequences in terms of the production of sulphide, acid, gas and complexing agents.

SKB Number

SKB FEP Number

BP14

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Bottom plate in deposition holes

Handling

Explanation of how the FEP is treated

Intact canister, Resaturation/ "thermal period: Neglected under unsaturated conditions since the extent of aqueous reactions is limited. For saturated conditions the treatment is the same as for "long-term". Intact canister, Long-term after saturation and "thermal" period: Separate assessment of the reactions that can take place in the bottom plate.

References

Bibliographic references to obtain more information

SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.7.3, 8.4.7