2026-09-14T13:03:42Zhttps://gredos.usal.es/oai/request

oai:gredos.usal.es:10366/1494432025-04-30T20:55:58Zcom_10366_4756com_10366_4746com_10366_3823com_10366_143088com_10366_123103col_10366_68518col_10366_143119

Numerical modelling of the dynamics of chlorinated solvent pollution in aquifers and their remediation with engineered nano-particles: An integrated approach Nilabh, Shikhar Grandia, Fidel Martínez Graña, Antonio Miguel Tesis y disertaciones académicas Universidad de Salamanca (España) Tesis Doctoral Academic dissertations Modelado numérico Contaminación Disolventes clorados Acuíferos Nanopartículas [EN] The global water shortage is one of the main environmental concerns in the 21st century. The main source of drinking water is the groundwater that flows in the subsurface. The increased agriculture and industrial activities in the last few decades have been proven to be detrimental for groundwater. While these water resources are limited, the scarcity is further triggered by the loss of quality due to anthropogenic activities such as waste deposition and landfill leakage. Contaminants from the anthropogenic waste often migrates through the sub-surface and reach an underlying aquifer. The occurrence of these contaminants threatens the quality of water resources and often requires remediation efforts. Several in-situ and ex-situ remediation methodologies have been developed and tested in the last decades; recently, the use of Engineered Nano-Particles (ENPs) for in-situ contaminant degradation have gained a lot of interest in the field of groundwater remediation. These ENPs have been found to be effective due to their high reactive surface area, minimal disruption of the groundwater system and their aggressive contaminant degradation capabilities. However, the field scale implementation of this remediation technique is often challenging, as each polluted site require a custom design and strategy of remediation. The field scale remediation of groundwater using ENPs requires a lot of scientific investigation and technical resources, owing to complexity and the limited accessibility of the contamination- groundwater system. Therefore, it is necessary to develop a robust remediation strategy which includes laboratory scale and field scale studies as well as application of a numerical approach. The success in the remediation effort is often limited by lack of detailed understanding of the contaminant and hydrogeological properties of the aquifer. While, the information of contamination-aquifer dynamics can be studied at field, knowledge on the continuous and consistent contamination behavior on both temporal and spatial scale is often missing. The use of an integrated numerical model can be helpful for bridging the gap between the field studies and the relevant insights required for groundwater remediation. 2022-05-03T20:24:03Z 2022-05-03T20:24:03Z 2022-05-03T20:24:03Z 2021 info:eu-repo/semantics/doctoralThesis http://hdl.handle.net/10366/149443 10.14201/gredos.149443 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional