Description
Microbial processes in the buffer that can result in the formation of gas and sulphide.
SKB Number
SKB FEP Number
Bu21
Main Category
Main category for FEP
Internal process
System Component
System component to which the FEP applies
Buffer
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. Quantitative estimate of sulphate reduction, limited by supply of microbe nutrients in groundwater.
Intact canister - Earthquakes. Not specifically treated.
References
Bibliographic references to obtain more information
SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.2.4, 3.5.14; SR-Site Main report, TR-11-01, Section(s) 7.4.3