Visualization and modelling of the polarization layer and a reversible adsorption process in PEG-10000 dead-end ultrafiltration
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Título: | Visualization and modelling of the polarization layer and a reversible adsorption process in PEG-10000 dead-end ultrafiltration |
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Autor/es: | Fernández Sempere, Julio | Ruiz Beviá, Francisco | García Algado, Pedro | Salcedo Díaz, Raquel |
Grupo/s de investigación o GITE: | Estudios de Transferencia de Materia y Control de Calidad de Aguas (ETMyCCA) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Química |
Palabras clave: | Ultrafiltration | Holographic interferometry | Concentration profiles | Adsorption | Modelling |
Área/s de conocimiento: | Ingeniería Química |
Fecha de creación: | 2009 |
Fecha de publicación: | 5-jul-2009 |
Editor: | Elsevier |
Cita bibliográfica: | FERNÁNDEZ SEMPERE, Julio, et al. "Visualization and modelling of the polarization layer and a reversible adsorption process in PEG-10000 dead-end ultrafiltration". Journal of Membrane Science. Vol. 342, No. 1-2 (15 Oct. 2009). ISSN 0376-7388, pp. 279-290 |
Resumen: | Real-time holographic interferometry has been used to visualize the evolution of the polarization layer during dead-end ultrafiltration of PEG-10000. Several experiments at a constant pressure of 1 bar and varying the feed concentration of PEG-10000 (5–12.5 kg/m3) have been carried out. In all the experiments it has been possible to follow the appearance, evolution and disappearance of the polarization layer. Experimental results have also shown evidence of the existence of a reversible adsorption process on the membrane surface. A mathematical model has been proposed for the simulation of the dead-end UF process. This model, based on the convection–diffusion mechanism and the osmotic pressure theory, has been combined with an empirical equation for the adsorption process. The model has been validated, under the experimental conditions used, by a reasonable agreement between experimental and calculated results (concentration profiles and permeate flux). |
Patrocinador/es: | This research has been sponsored by the Plan Nacional de I+D+I CTQ2006-14904 (Ministerio de Educación y Cultura) and University of Alicante; Grupo Transferencia de Materia – Interferometría holográfica (VIGROB-128). |
URI: | http://hdl.handle.net/10045/14185 |
ISSN: | 0376-7388 (Print) | 1873-3123 (Online) |
DOI: | 10.1016/j.memsci.2009.06.046 2 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.memsci.2009.06.046 |
Aparece en las colecciones: | INV - ETMyCCA - Artículos de Revistas INV - CONCEPT - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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UF_PEG10000.pdf | Versión final (acceso restringido) | 1,15 MB | Adobe PDF | Abrir Solicitar una copia |
Ultrafiltration_PEG.pdf | Versión revisada (acceso libre) | 180,66 kB | Adobe PDF | Abrir Vista previa |
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