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Retarding contaminant migration through porous media using inclined barrier walls Cover

Retarding contaminant migration through porous media using inclined barrier walls

Open Access
|Nov 2019

Abstract

This study aims to assess the abilities of inclined barrier walls (BWs) to retard the migration of contaminants through porous media. Four cases of BW arrangements were considered, including a single inclined BW (BW1) and two adjacent BWs (BW1 and BW2) with different combinations of inclination ratios (i.e., I1 = θ1 /90° and I2 = θ2 /90°). Furthermore, the effect of the distance (L) between the contamination source and BW1 on the migration time (T) was evaluated. A numerical model (GeoStudio) containing two modules (SEEP/W and CTRAN/W) was used. The model proved its reliability to simulate contaminant migration through the porous media, where the normalized objective function values between the simulated and analytical results were 0.02 and 0.04 for the discharge of seepage and concentration of contamination, respectively. The results demonstrated that the migration time was strongly influenced by the inclination ratios of the BWs. Three-dimensional regression analysis was applied to demonstrate the combined effect of the inclination ratio, L and BW arrangements on T.

DOI: https://doi.org/10.2478/johh-2019-0020 | Journal eISSN: 1338-4333 | Journal ISSN: 0042-790X
Language: English
Page range: 339 - 348
Submitted on: Dec 3, 2018
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Accepted on: Mar 19, 2019
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Published on: Nov 15, 2019
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2019 Ayman Allam, Esam Helal, Mahmoud Mansour, published by Slovak Academy of Sciences, Institute of Hydrology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.