Transport Mechanisms of the Anthropogenic Contaminant Sulfamethoxazole in Volcanic Ash Soils Evaluated Using the Hydrus-1d Model

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dc.catalogadoraba
dc.contributor.authorUrdiales, C.
dc.contributor.authorUrdiales Flores, D.
dc.contributor.authorTapia, Y.
dc.contributor.authorCaceres Jensen, L.
dc.contributor.authorŠimůnek, J.
dc.contributor.authorAntilén Lizana, Mónica
dc.date.accessioned2025-04-01T16:00:09Z
dc.date.available2025-04-01T16:00:09Z
dc.date.issued2024
dc.description.abstractThe volcanic soils in Chile, where a significant portion of agricultural activities take place, are impacted by the presence of veterinary drugs, including sulfamethoxazole (SMX). The transport of SMX in soils Collipulli (CLL), Frutillar (FRU), Nueva Braunau (NBR), and Osorno (OSR) was explored. Aadsorption batch, kinetics, and column breakthrough curve (BTC) experiments were conducted, alongside transport modelling. The adsorption kinetics of SMX in CLL soil followed a pseudo-first-order (PPO) model, while FRU, NBR, and OSR soils aligned with a pseudo-second-order (PSO) model. Freundlich isotherms effectively described SMX adsorption in CLL and OSR soils, indicating multilayer adsorption, while Langmuir isotherms fit the FRU and NBR soils, suggesting monolayer adsorption. Using HYDRUS-1D software, we simulated SMX transport in soil columns. BTCs were best modelled using a two-site sorption model with both equilibrium and kinetic adsorption. SMX was more mobile in CLL soil, due to its lower organic matter (OM) content and adsorption capacity, while FRU, NBR, and OSR soils showed slower transport, reflecting higher OM content and greater adsorption capacity, reducing SMX leaching. These findings emphasize the importance of soil properties, such as OM content, in influencing SMX behavior, and are vital for assessing environmental impacts and developing mitigation strategies.
dc.description.funderANID/FONDECYT; Folio: 1210801
dc.description.funderBasal Funding for Scientific and Technological Centers of Excellence; Folio: FB0807 CEDENNA ANID
dc.description.funderANID FONDECYT/Post Doctoral Grant; Folio: 3220201
dc.format.extent46 páginas
dc.fuente.origenORCID
dc.identifier.doi10.2139/ssrn.4988688
dc.identifier.scopusid2-s2.0-85214514548
dc.identifier.urihttps://doi.org/10.2139/ssrn.4988688
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/103087
dc.identifier.wosidWOS:001397630800001
dc.information.autorucEscuela de Química; Antilén Lizana, Mónica; 0000-0003-0512-4267; 144275
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaSSRN
dc.rightsacceso restringido
dc.subjectFate and transport
dc.subjectColumn breakthrough curves
dc.subjectVolcanic soils
dc.subjectAntibiotic pollution
dc.subjectHydrus -1D model
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleTransport Mechanisms of the Anthropogenic Contaminant Sulfamethoxazole in Volcanic Ash Soils Evaluated Using the Hydrus-1d Model
dc.typepreprint
sipa.codpersvinculados144275
sipa.trazabilidadORCID;2025-03-03
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