Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/10443

Título:	Cadmium and lead removal from aqueous solution by grape stalk wastes: modeling of a fixed-bed column
Autor/a:	Miralles Esteban, Núria; Valderrama Angel, César Alberto; Casas Pons, Ignasi; Martínez Martínez, María del Rosario; Florido Pérez, Antonio
Otros autores:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
Abstract:	Grape stalk wastes generated in the wine production process were used for the removal of cadmium and lead ions from aqueous solutions. The experimental breakthrough curves (BTC) were obtained from fixedbed columns. Experiments were carried out to evaluate the influence of both inlet metal concentration and sorbent particle size. The experimental data were fitted to the Thomas model, a well-established fixed-bed sorption model. The theoretical sorption capacities obtained by the Thomas model were in good agreement with the breakthrough capacities determined from the sorption data. The CXTFIT code was used to determine the transport and sorption parameters of the convective-dispersive equation (CDE) and the two-site deterministic nonequilibrium (TSM/CDE) model by adjusting the models to the experimental breakthrough curves. The results showed that sorption capacities as well as both transport and sorption parameters were affected by the initial metal concentration as well as by the sorbent particle size.
Materia(s):	-Àrees temàtiques de la UPC::Enginyeria química -Grapes -Cadmium -Wine--Chemistry -Lead -Vi -- Anàlisi -- Plom -Indústria vinícola
Derechos:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Tipo de documento:	Artículo - Versión publicada Artículo
Compartir:

Mostrar el registro completo del ítem