Editors-in-Chief
Dr. Abdelwahab Chedad
Ouargla University; Directorate of Forest Conservation of Ghardaïa (General Directorate of Forestry)
Publishing
Table of Contents
Open AccessArticles
by Raymundo López, Mabel Vaca, Zaira Miranda, Araceli Lara, Georgina Guzmán
2024,2(2);
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Abstract
The dispersion of gasoline from the spill due to illegal fuel extraction activities from pipelines that occurred in Tlahuelilpan, Hidalgo, in 2019, was modelled. We used the HSSM software (vertical profile of gasoline saturation, profiles in the vadose zone, and radial profile of the light non-aqueous phase liquid lens), and prediction of its concentration in different media was obtained using the ChemCAN program. Gasoline infiltration would reach 7.5 meters deep at a rate of 0.30 mg/day in 10 days. Assuming that the vadose zone was at 10 m, the underground body of water would not be reached by the hydrocarbon. It was estimated that the maximum concentration of gasoline for the light fraction present in the soil was 2,200 mg/kg, ten times above the maximum permissible regulated limits. Benzene, a characteristic compound of gasoline, was studied in air-water-soil-sediment system, and it was observed that it would preferably accumulate in the sediments (84.9%) and the soil (11.8%), being the systems in greater contact with gasoline. The greatest risk due to the spillage during three subsequent years was related to the surface of the soil, affecting the flora, fauna, and population with exposure by inhalation and dermal contact, and the flammable danger of gasoline.
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Open AccessArticles
by Mosharof Al Alim, Shoma Hore
2024,2(2);
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Abstract
Climate change poses significant challenges to infrastructure systems, particularly those constructed on soft clay soils, which are inherently sensitive to environmental conditions. From a chemical and geotechnical engineering perspective, climate-induced factors such as rising temperatures, fluctuating groundwater levels, and extreme weather events can alter the chemical properties of soft clay soils, leading to changes in their structural behavior and stability. This review explores the critical role of chemical processes in soil stabilization, mineralogical transformations, and chemical erosion under changing climatic conditions. It synthesizes findings on chemical additives, including lime and cement treatments, for enhancing soil strength and mitigating deformation risks. The paper also highlights recent advancements in understanding ion exchange processes, pH variations, and salinity effects on soft clay properties. By bridging chemical insights with geotechnical solutions, the study provides practical recommendations for the development of climate-resilient infrastructure. This chemical-centric review contributes to advancing sustainable engineering practices in vulnerable regions.
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