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dc.contributor.author Sardella, Maria Fabiana
dc.contributor.author Gimenez Guerrero, Marianela Gema
dc.contributor.author Navas Echenique, Cintia Silvina
dc.contributor.author Morandi, Cecilia
dc.contributor.author Deiana, Cristina
dc.contributor.author Sapag, Manuel Karim
dc.date.available 2016-09-14T19:46:59Z
dc.date.issued 2014-03
dc.identifier.citation Sardella, Maria Fabiana; Gimenez Guerrero, Marianela Gema; Navas Echenique, Cintia Silvina; Morandi, Cecilia; Deiana, Cristina; et al.; Conversion of viticultural industry wastes into activated carbons for removal of lead and cadmium; Elsevier; Journal of Environmental Chemical Engineering; 3; 1; 3-2014; 253-260
dc.identifier.issn 2213-3437
dc.identifier.uri http://hdl.handle.net/11336/7637
dc.description.abstract Many industrial activities generate large quantities of biomass wastes. The use of these to produce added value products or energy has become very important in recent years. Heavy metals as lead and cadmium are among the most toxic chemical water pollutants from natural or anthropogenic sources. This paper presents the studies carried out to assess the feasibility of preparing activated carbons from grape industrialization wastes of Cuyo Region, Argentina, grape stalk, lex and pomace, and their application for the removal of lead and cadmium. These materials were activated with steam. The activation conditions of each material were adjusted until the porosity and yield were acceptable. Products were characterized by their textural (BET area, porous volume) and physicochemical properties (proximate and elemental analysis, acid and basic surface groups, pHpzc, FTIR). In order to determine the effectiveness of these products on lead and cadmium adsorption, kinetics and equilibrium assays were carried out. Adsorption data were fitted to Langmuir and Freundlich models. All the adsorbents obtained were mainly microporous and showed a markedly basic character with pHpzc values above 10. The study of the effect of pH over lead and cadmium adsorption showed that the maximum retention of metal is attained at pH 5.5 and 6, respectively. Removal percentages around 98% were reached when grape pomace activated carbons were used. The other adsorbents showed lower removal efficiency. Adsorbent textural properties did not show influence on cadmium and lead adsorption under the experimental conditions of this work. The pH of suspensions was a relevant variable in the adsorption of metals and their regulation was difficult. Consequently, the removal of lead and cadmium was attributed to the combined effect of adsorption and precipitation.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject VITICULTURAL WASTE
dc.subject LEAD
dc.subject CADMIUM
dc.subject ADSORPTION
dc.subject.classification Ingeniería de Procesos Químicos
dc.subject.classification Ingeniería Química
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title Conversion of viticultural industry wastes into activated carbons for removal of lead and cadmium
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-06-01T14:03:33Z
dc.journal.volume 3
dc.journal.number 1
dc.journal.pagination 253-260
dc.journal.pais Países Bajos
dc.journal.ciudad Amsterdam
dc.description.fil Fil: Sardella, Maria Fabiana. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Gimenez Guerrero, Marianela Gema. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Navas Echenique, Cintia Silvina. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Morandi, Cecilia. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina
dc.description.fil Fil: Deiana, Cristina. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina
dc.description.fil Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.journal.title Journal of Environmental Chemical Engineering
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2213343714001420
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jece.2014.06.026


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)