Evaluación de la cascarilla de café como material adsorbente para la remoción de iones plomo Pb2+ presente en soluciones acuosas
| dc.contributor.advisor | Agudelo Valencia, Rafael Nikolay | |
| dc.contributor.author | Barón Pacheco, Laura Johana | |
| dc.coverage.spatial | Bogotá | spa |
| dc.date.accessioned | 2018-03-12T19:11:50Z | |
| dc.date.available | 2018-03-12T19:11:50Z | |
| dc.date.created | 2014 | |
| dc.description.abstract | Se 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 |
| dc.format | ||
| dc.format.mimetype | application/pdf | |
| dc.identifier.instname | instname:Universidad Libre | spa |
| dc.identifier.reponame | reponame:Repositorio Institucional Universidad Libre | spa |
| dc.identifier.uri | https://hdl.handle.net/10901/11234 | |
| dc.language.iso | spa | |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.coar | http://purl.org/coar/access_right/c_abf2 | spa |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 2.5 Colombia | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | * |
| dc.subject | Café | spa |
| dc.subject | Ingeniería ambiental | spa |
| dc.subject | Adsorción | spa |
| dc.subject.lemb | Tesis | spa |
| dc.subject.lemb | Tesis ingeniería | spa |
| dc.subject.lemb | Facultad de ingeniería | spa |
| dc.subject.lemb | Ingeniería ambiental | spa |
| dc.subject.lemb | Café | spa |
| dc.subject.lemb | Producto vegetal | spa |
| dc.subject.lemb | Medio ambiente | spa |
| dc.subject.proposal | Adsorción | spa |
| dc.subject.proposal | Cinética | spa |
| dc.subject.proposal | Isoterma | spa |
| dc.subject.proposal | Remoción | spa |
| dc.subject.proposal | Cascarilla de Café | spa |
| dc.subject.proposal | Café | spa |
| dc.subject.proposal | Cascara | spa |
| dc.title | Evaluación de la cascarilla de café como material adsorbente para la remoción de iones plomo Pb2+ presente en soluciones acuosas | spa |
| dc.type.coar | http://purl.org/coar/resource_type/c_7a1f | spa |
| dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | |
| dc.type.driver | info:eu-repo/semantics/bachelorThesis | spa |
| dc.type.hasversion | info:eu-repo/semantics/acceptedVersion | spa |
| dc.type.local | Tesis de Pregrado | spa |
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