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Calcite buffer effects in electrokinetic remediation of clopyralid-polluted soils

Mostrar el registro sencillo del ítem López-Vizcaíno López, Rubén Dos Santos, Elisama Vieira Yustres Real, Ángel Rodrigo Rodrigo, Manuel Andrés Navarro Gamir, Vicente 2018-11-21T09:15:25Z 2018-11-21T09:15:25Z 2018-11
dc.identifier.citation Separation and Purification Technology es_ES
dc.identifier.issn 1383-5866
dc.description.abstract This work presents a study of the dissolution-precipitation processes of calcite in soil undergoing electrokineticremediation processes. For this purpose, a numerical inspection of one of these processes in a calcareous soil(10% calcite content) contaminated with an of the organochlorine acid herbicide (3,6-dichloro-2-pyr-idinecarboxylic acid) was carried out. The numerical tool used to perform this analysis was the Multiphysics for EKR (M4EKR), a module programmed by the authors in the COMSOL Multiphysics platform. A detailed analysisof the pH, the distribution of species that have a significant influence on soil buffering capacity (carbonates andcalcite), as well as the pollutant, has been performed. In this way, the kinetics of the calcite dissolution-pre-cipitation processes have been analysed in order to determine the pH of the water in the pores and, therefore,how it directly affects the effectiveness of the treatment. Additionally, a sensitivity analysis of the selected EKRprocess has been carried out at different values of the rate of calcite dissolution due to the uncertainty associatedwith the reactive surface area parameter. es_ES
dc.format application/pdf es_ES
dc.language.iso en es_ES
dc.publisher Elsevier es_ES
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.subject Electrokinetic soil remediation es_ES
dc.subject Multiphysics simulation es_ES
dc.subject Soil buffering capacity es_ES
dc.subject Herbicide es_ES
dc.subject Calcite es_ES
dc.title Calcite buffer effects in electrokinetic remediation of clopyralid-polluted soils es_ES
dc.type info:eu-repo/semantics/article es_ES

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