Coupled transport/reaction modelling of copper canister corrosion aided by microbial processes
2004 (English)In: Radiochimica Acta, ISSN 0033-8230, Vol. 92, no 11-sep, 849-854 p.Article in journal (Refereed) Published
Copper canister corrosion is an important issue in the concept of a nuclear fuel repository. Previous studies indicate that the oxygen-free copper canister could hold its integrity for more than 100 000 years in the repository environment. Microbial processes may reduce sulphate to sulphide and considerably increase the amount of sulphide available for corrosion. In this paper. a coupled transport/reaction model is developed to account for the transport of chemical species produced by microbial processes. The corroding agents like sulphide would come not only from the intruding groundwater, but also from the reduction of sulphate near the canister. The reaction of sulphate-reducing bacteria and the transport of sulphide in the bentonite buffer is included in the model. The local depth of copper canister corrosion is calculated by the model.
Place, publisher, year, edition, pages
2004. Vol. 92, no 11-sep, 849-854 p.
IdentifiersURN: urn:nbn:se:kth:diva-23966DOI: 10.1524/ract.92.9.849.54994ISI: 000225831400046ScopusID: 2-s2.0-10344267021OAI: oai:DiVA.org:kth-23966DiVA: diva2:342665
QC 20100525 QC 201110182010-08-102010-08-102011-10-31Bibliographically approved