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10.3390/membranes10120408
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Título: | Removal of different dye solutions: A comparison study using a polyamide nf membrane |
Fecha de publicación: | 10-dic-2020 |
Editorial: | MDPI |
Cita bibliográfica: | Membranes Volume 10 Issue 12 10.3390/membranes10120408 |
ISSN: | Electronic: 2077-0375 |
Palabras clave: | Characterization Dyes Molecular structure Nanofiltration Physico-chemical properties |
Resumen: | The removal of organic dyes in aquatic media is, nowadays, a very pressing environmental problem. These dyes usually come from industries, such as textiles, food, and pharmaceuticals, among others, and their harm is produced by preventing the penetration of solar radiation in the aquatic medium, which leads to a great reduction in the process of photosynthesis, therefore damaging the aquatic ecosystems. The feasibility of implementing a process of nanofiltration in the purification treatment of an aqueous stream with small size dyes has been studied. Six dyes were chosen: Acid Brown-83, Allura Red, Basic Fuchsin, Crystal Violet, Methyl Orange and Sunset Yellow, with similar molecular volume (from 250 to 380 Å). The nanofiltration membrane NF99 was selected. Five of these molecules with different sizes, shapes and charges were employed in order to study the behavior of the membrane for two system characteristic parameters: permeate flux and rejection coefficient. Furthermore, a microscopy study and a behavior analysis of the membrane were carried out after using the largest molecule. Finally, the Spiegler–Kedem–Katchalsky model was applied to simulate the behavior of the membrane on the elimination of this group of dyes. |
Autor/es principal/es: | Hidalgo, A.M. León, G. Gómez, M. Murcia, M.D. Gómez, E. Macario, J.A. |
Facultad/Departamentos/Servicios: | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Ingeniería Química |
Versión del editor: | https://www.mdpi.com/2077-0375/10/12/408 |
URI: | http://hdl.handle.net/10201/137760 |
DOI: | 10.3390/membranes10120408 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 16 |
Derechos: | info:eu-repo/semantics/openAccess Atribución 4.0 Internacional |
Descripción: | © 2020. The authors. This document is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by /4.0/ This document is the accepted version of a published work that appeared in final form in Membranes |
Aparece en las colecciones: | Artículos: Ingeniería Química |
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