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Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients
Groundwater is subject to the intrusion of pollutants of various types. These pollutants can have natural or anthropogenic sources. Their consumption can therefore affect human health, but also affects the development of vegetation. The objective of this article is to analyze the effect of the dispe...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9433595/ https://www.ncbi.nlm.nih.gov/pubmed/36061019 http://dx.doi.org/10.1016/j.heliyon.2022.e10083 |
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author | Yonti Madie, Calvia Kamga Togue, Fulbert Woafo, Paul |
author_facet | Yonti Madie, Calvia Kamga Togue, Fulbert Woafo, Paul |
author_sort | Yonti Madie, Calvia |
collection | PubMed |
description | Groundwater is subject to the intrusion of pollutants of various types. These pollutants can have natural or anthropogenic sources. Their consumption can therefore affect human health, but also affects the development of vegetation. The objective of this article is to analyze the effect of the dispersion coefficient parameters on the spatio-temporal distribution of pollutants in a saturated porous medium with a finite thickness. This layer is subjected to two types of conditions at the outlet of the aquifer where the dispersion coefficient is a function of depth. The partial differential equations were solved using an implicit finite difference technique. The results of the analysis suggest that the behavior of the concentration profile was influenced by the different output boundary conditions. On the other hand, the parameter, b of the dispersion coefficient depending on the distance has a significant impact on the movement of the solute in a saturated porous medium compared to the parameter, a. In other words, it has more effect on the dispersion of pollutants in aquifers. This study highlights the need to bring insight on the transports parameters while modeling the transport of solute in a porous media. |
format | Online Article Text |
id | pubmed-9433595 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-94335952022-09-02 Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients Yonti Madie, Calvia Kamga Togue, Fulbert Woafo, Paul Heliyon Research Article Groundwater is subject to the intrusion of pollutants of various types. These pollutants can have natural or anthropogenic sources. Their consumption can therefore affect human health, but also affects the development of vegetation. The objective of this article is to analyze the effect of the dispersion coefficient parameters on the spatio-temporal distribution of pollutants in a saturated porous medium with a finite thickness. This layer is subjected to two types of conditions at the outlet of the aquifer where the dispersion coefficient is a function of depth. The partial differential equations were solved using an implicit finite difference technique. The results of the analysis suggest that the behavior of the concentration profile was influenced by the different output boundary conditions. On the other hand, the parameter, b of the dispersion coefficient depending on the distance has a significant impact on the movement of the solute in a saturated porous medium compared to the parameter, a. In other words, it has more effect on the dispersion of pollutants in aquifers. This study highlights the need to bring insight on the transports parameters while modeling the transport of solute in a porous media. Elsevier 2022-08-15 /pmc/articles/PMC9433595/ /pubmed/36061019 http://dx.doi.org/10.1016/j.heliyon.2022.e10083 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Research Article Yonti Madie, Calvia Kamga Togue, Fulbert Woafo, Paul Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
title | Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
title_full | Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
title_fullStr | Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
title_full_unstemmed | Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
title_short | Dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
title_sort | dispersion of pollutants in a porous medium with finite thickness and variable dispersion coefficients |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9433595/ https://www.ncbi.nlm.nih.gov/pubmed/36061019 http://dx.doi.org/10.1016/j.heliyon.2022.e10083 |
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