Articles | Volume 1
https://doi.org/10.5194/sand-1-109-2021
https://doi.org/10.5194/sand-1-109-2021
Conference Abstract
 | 
10 Nov 2021
Conference Abstract |  | 10 Nov 2021

Simulating the feedback between corrosive gas generation and water availability for the evaluation of radionuclide mobility in the context of radioactive waste disposal

Laurin Wissmeier and Joachim Poppei

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Cited articles

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Hammond, G. E., Lichtner, P. C., Lu, C., and Mills, R. T.: PFLOTRAN: Reactive flow and transport code for use on laptops to leadership-class supercomputers, in: Groundwater Reactive Transport Models, Bentham Science Publishers, Sharjah, UAE, 141–159, 2012. 
Huang, Y., Shao, H., Wieland, E., Kolditz, O., and Kosakowski, G.: Two-phase transport in a cemented waste package considering spatio-temporal evolution of chemical conditions, npj Materials Degradation, 5, 4, https://doi.org/10.1038/s41529-021-00150-z, 2021.  
Lichtner, P. C., Hammond, G. E., Lu, C., Karra, S., Bisht, G., Andre, B., Mills, R. T., Kumar, J., and Frederick, J. M.: PFLOTRAN User Manual: A Massively Parallel Reactive Flow and Transport Model for Describing Surface and Subsurface Processes, Technical Report, United States, LA-UR-15-20403, https://doi.org/10.2172/1168703, 2015. 
Lichtner, P. C., Hammond, G. E., Lu, C., Karra, S., Bisht, G., Andre, B., Mills, R. T., and Kumar, J.: PFLOTRAN Web page, PFLOTRAN: A Massively Parallel Reactive Flow and Transport Model for describing Surface and Subsurface Processes, available at: http://www.pflotran.org (last access: 22 June 2021), 2020. 
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Short summary
It has been recently recognized that the availability of liquid water may be a controlling factor for metal corrosion in a storage facility for radioactive waste. Since water is an educt for anaerobe corrosion, the reaction may be suspended or suppressed by the scarcity of water near the corroding surfaces. Gas pressure build-up through hydrogen generation may limit further water ingress. Our model focuses on the close coupling between gas generation through iron corrosion and water availability.