A Simplified 3D Model for Remediation of Pollution in a River by Releasing Clean Water Using the Advection-Dispersion Equation | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 27, Volume 27, Issue 5, September and October 2023, Pages 411-427 PDF (1.03 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2023.319123 | ||
| Author | ||
| Ahmed Saleh et al. | ||
| Abstract | ||
| An analytical solution is obtained for the three-dimensional advection-dispersion equation describing the temporally dependent flow domain through an isotropic semi-infinite homogeneous porous medium by using the Laplace transformation technique. Also, a numerical solution is obtained by using the explicit finite difference method. The usage of dimensionless variables allows this solution to be applicable in a wide variety of cases. Impacts of different parameters controlling pollutant dispersion are studied with the help of graphs and a table. We discuss how to use the fact that the provided solution predicts pollutant concentration along the river to help in the decision-making regarding its remediation with effective methods. This paper mathematically indicates that releasing clean water from a barrage reduces the pollutant concentration in a river. | ||
| Keywords | ||
| Remediation of water pollution; dimensionless variables; advection-dispersion equation; finite difference method; Laplace transformation | ||
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