Two-phase reactive transport modeling of heterogeneous gas production in a low-  and intermediate-level waste repository

Vehling, Falko; Shao, Haibing

doi:https://doi.org/10.5194/sand-2-129-2023

Articles | Volume 2

https://doi.org/10.5194/sand-2-129-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/sand-2-129-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 2

Conference Abstract

|

06 Sep 2023

Conference Abstract |

| 06 Sep 2023

Two-phase reactive transport modeling of heterogeneous gas production in a low- and intermediate-level waste repository

Falko Vehling and Haibing Shao

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Cited articles

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 Mater. Degrad., 5, 4, https://doi.org/10.1038/s41529-021-00150-z, 2021.

Short summary

In a geological waste repository, gas production is caused by water-consuming chemical reactions, the anoxic corrosion of metals or the degradation of organic waste. For safety assessment, it is required to consider the maximum pressure buildup and the induced transport of radionuclides. This 2D numerical study comprises a single container filled with 12 waste drums and aims to better understand the controlling parameter of the geochemical evolution and to improve full gallery simulations.