Description

Gas production within the EBS from corrosion and degradation of waste or EBS materials (e.g. H2), microbial activity (e.g. CO2, CH4 and H2S), and radiation effects (He from alpha decay and H2 and O2 from radiolysis).

Category

Category of FEP

Supercontainer EBS

Sub-category

Sub-category of FEP

Chemical processes

Ondraf Niras FEP Number

Ondraf Niras FEP Number

29

FEP Effects

Description of FEP Effects

Gas production may change local chemical and hydraulic conditions, and the mechanisms for radionuclide transport (i.e. gas-induced and gas-mediated transport).

NEA TN2 IFEP Reference(s)

Related IFEPs from the NEA TN2 List of Proposed IFEP Revisions [NEA/RWM/R(2013)8]

2.3.2.3 Gas effects (waste package). 2.3.3.5 Gas explosion (waste package). 2.3.6.3 Helium production. 2.3.7 Gas generation (waste package). 2.4.2 Gas-mediated release. 3.2.3.4 Gas explosion (GDF). 3.2.7 Gas generation (GDF).