Evaluación de la cascarilla de café como material adsorbente para la remoción de iones plomo Pb2+ presente en soluciones acuosas

dc.contributor.advisorAgudelo Valencia, Rafael Nikolay
dc.contributor.authorBarón Pacheco, Laura Johana
dc.coverage.spatialBogotáspa
dc.date.accessioned2018-03-12T19:11:50Z
dc.date.available2018-03-12T19:11:50Z
dc.date.created2014
dc.description.abstractSe evaluó la cascarilla de café como material adsorbente para la remoción de iones Pb2+ presente en soluciones acuosas por medio de ensayos de adsorción en modo discontinuo (Batch). El material fue caracterizado mediante espectroscopia infrarroja por transformada de Fourier (FTIR), a través del cual se determinó que la cascarilla de café posee en la superficie grupos funcionales que le confieren la habilidad para adsorber contaminantes, a través de un diseño experimental de tipo central compuesto se pudo analizar los efectos de las variables; velocidad de agitación y concentración de Pb2+, hallando que las condiciones óptimas para el proceso están en una velocidad de agitación de 200 rpm y una concentración de 50 mg L-1 dentro del rango analizado. El equilibrio del proceso fue estudiado por medio de los modelos de isoterma Freundlich y Langmuir. La adsorción de iones Pb2+ se ajustó mejor al modelo de Langmuir, la capacidad de adsorción del material fue de 5.20 mg g-1. El análisis de la tendencia cinética determinó que el proceso sigue el modelo de pseudo segundo orden, dando valor para el coeficiente cinético K2 de 0.082 g min-1 mg-1. Y una capacidad de adsorción máxima de 4.80 mg g-1. El tiempo en el cual el proceso alcanzo el estado estable fue de 30 minutos, hecho favorable para la realización del proceso.spa
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dc.identifier.instnameinstname:Universidad Librespa
dc.identifier.reponamereponame:Repositorio Institucional Universidad Librespa
dc.identifier.urihttps://hdl.handle.net/10901/11234
dc.language.isospa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.coarhttp://purl.org/coar/access_right/c_abf2spa
dc.rights.licenseAtribución-NoComercial-SinDerivadas 2.5 Colombia*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/*
dc.subjectCaféspa
dc.subjectIngeniería ambientalspa
dc.subjectAdsorciónspa
dc.subject.lembTesisspa
dc.subject.lembTesis ingenieríaspa
dc.subject.lembFacultad de ingenieríaspa
dc.subject.lembIngeniería ambientalspa
dc.subject.lembCaféspa
dc.subject.lembProducto vegetalspa
dc.subject.lembMedio ambientespa
dc.subject.proposalAdsorciónspa
dc.subject.proposalCinéticaspa
dc.subject.proposalIsotermaspa
dc.subject.proposalRemociónspa
dc.subject.proposalCascarilla de Caféspa
dc.subject.proposalCaféspa
dc.subject.proposalCascaraspa
dc.titleEvaluación de la cascarilla de café como material adsorbente para la remoción de iones plomo Pb2+ presente en soluciones acuosasspa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1fspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.driverinfo:eu-repo/semantics/bachelorThesisspa
dc.type.hasversioninfo:eu-repo/semantics/acceptedVersionspa
dc.type.localTesis de Pregradospa

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