Speaker
Description
Abstract
Soil pollution by petroleum hydrocarbons a global environmental problem with harmful effects on ecosystems and human health. Remediation is an essential for restoring soil quality and preventing further environmental degradation.
Petroleum hydrocarbons, including crude oil and its derivatives are composed of petroleum hydrocarbons that can remain in the soil for an extended period, making conventional remediation approach difficult. Current methods, including bioremediation or physical removal, can be slow or costly and aren’t suitable for larger-scale or deep contaminations. Recent studies have explored innovative solutions involving chemical agents, including polymers and alcohols, to enhance pollutant displacement and solubilization, improving remediation efficiency [1–3].
This study addresses the challenge of efficiently removing petroleum products from contaminated pore structures using polymer solutions enhanced with alcohols as agents for sweeping and dissolution. We also investigate the impact of wettability, alcohol/polymer concentration, and the geometry of porous media on remediation performance. To support our analysis, we utilize AI-specialized software for image post-treatment, enabling precise visualization and quantification of hydrocarbon displacement within the soil structure.
The present study will provide insight into improving our understanding of, and fine-tuning the enhanced hydrocarbon remediation technique in porous media at a pore scale. This finding is distinct from earlier methods, which utilized either polymers or alcohol alone. By combining these agents, we observe an enhanced synergistic effect that accelerates the removal of hydrocarbons compared to earlier methods. This finding opens up new possibilities for improving the effectiveness of soil remediation technologies.
Effective petroleum hydrocarbon removal at the pore scale can result in appropriate technology with greater cost efficiency, faster response timing, and lower risk of environmental consequences. Our results offer a framework to minimalize such strategies to large scale contamination cleanup. Finally, the findings of this study hold implications for the wider arena of environmental contaminants and their remediation, highlighting the value of creative multidisciplinary approaches in addressing intricate environmental issues. The combination of polymers and alcohols could be a promising direction for tackling other forms of persistent contamination, further advancing environmental sustainability.
| References | References [1] A. Karthick, M. Chauhan, M. Krzan, P. Chattopadhyay, Potential of surfactant foam stabilized by Ethylene glycol and Allyl alcohol for the remediation of diesel contaminated soil, Environ Technol Innov 14 (2019). https://doi.org/10.1016/j.eti.2019.100363. [2] A. Alamooti, S. Colombano, A. Shoker, A. Ahmadi-Sénichault, F. Lion, D. Cazaux, C. Marion, J. Lagron, I. Sawadogo, D. Davarzani, Enhancing remediation of residual DNAPL in multilayer aquifers: Post-injection of alcohol-surfactant-polymer mixtures, Science of the Total Environment 918 (2024). https://doi.org/10.1016/j.scitotenv.2024.170680. [3] A. Rodríguez de Castro, A. Ben Abdelwahed, H. Bertin, Enhancing pollutant removal from contaminated soils using yield stress fluids as selective blocking agents, J Contam Hydrol 255 (2023). https://doi.org/10.1016/j.jconhyd.2023.104142. |
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| Country | Kazakhstan |
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