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Numerical modeling of radionuclide migration through a borehole disposal site
The migration of radionuclides from a borehole repository located about 20 km from the Akwapim fault line which lies in an area of high seismicity was analyzed for some selected radionuclides. In the event of a seismic activity, fractures and faults could be rejuvenated or initiated resulting in con...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4000598/ https://www.ncbi.nlm.nih.gov/pubmed/24790811 http://dx.doi.org/10.1186/2193-1801-3-155 |
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author | Yeboah, Serwaa Akiti, Thomas T Fletcher, John J |
author_facet | Yeboah, Serwaa Akiti, Thomas T Fletcher, John J |
author_sort | Yeboah, Serwaa |
collection | PubMed |
description | The migration of radionuclides from a borehole repository located about 20 km from the Akwapim fault line which lies in an area of high seismicity was analyzed for some selected radionuclides. In the event of a seismic activity, fractures and faults could be rejuvenated or initiated resulting in container failure leading to the release of radionuclides. A numerical model was solved using a two-dimensional finite element code (Comsol Multiphysics) by taking into account the effect of heterogeneities. Results showed that, the fractured medium created preferential pathways indicating that, fault zones generated potential paths for released radionuclides from a radioactive waste repository. The results obtained showed that variations in hydraulic conductivity as a result of the heterogeneity considered within the domain significantly affected the direction of flow. |
format | Online Article Text |
id | pubmed-4000598 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-40005982014-04-30 Numerical modeling of radionuclide migration through a borehole disposal site Yeboah, Serwaa Akiti, Thomas T Fletcher, John J Springerplus Research The migration of radionuclides from a borehole repository located about 20 km from the Akwapim fault line which lies in an area of high seismicity was analyzed for some selected radionuclides. In the event of a seismic activity, fractures and faults could be rejuvenated or initiated resulting in container failure leading to the release of radionuclides. A numerical model was solved using a two-dimensional finite element code (Comsol Multiphysics) by taking into account the effect of heterogeneities. Results showed that, the fractured medium created preferential pathways indicating that, fault zones generated potential paths for released radionuclides from a radioactive waste repository. The results obtained showed that variations in hydraulic conductivity as a result of the heterogeneity considered within the domain significantly affected the direction of flow. Springer International Publishing 2014-03-21 /pmc/articles/PMC4000598/ /pubmed/24790811 http://dx.doi.org/10.1186/2193-1801-3-155 Text en © Yeboah et al.; licensee Springer. 2014 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Research Yeboah, Serwaa Akiti, Thomas T Fletcher, John J Numerical modeling of radionuclide migration through a borehole disposal site |
title | Numerical modeling of radionuclide migration through a borehole disposal site |
title_full | Numerical modeling of radionuclide migration through a borehole disposal site |
title_fullStr | Numerical modeling of radionuclide migration through a borehole disposal site |
title_full_unstemmed | Numerical modeling of radionuclide migration through a borehole disposal site |
title_short | Numerical modeling of radionuclide migration through a borehole disposal site |
title_sort | numerical modeling of radionuclide migration through a borehole disposal site |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4000598/ https://www.ncbi.nlm.nih.gov/pubmed/24790811 http://dx.doi.org/10.1186/2193-1801-3-155 |
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