The use of combined treatments for reducing parabens in surface waters: Ion-exchange resin and nanofiltration
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Título: | The use of combined treatments for reducing parabens in surface waters: Ion-exchange resin and nanofiltration |
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Autor/es: | López Ortiz, Carmen | Sentana Gadea, Irene | Varó Galvañ, Pedro José | Maestre, Salvador E. | Prats, Daniel |
Grupo/s de investigación o GITE: | Recursos Hídricos y Desarrollo Sostenible | Diseño en Ingeniería y Desarrollo Tecnológico (DIDET) | Análisis de Alimentos y Nutrición |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Expresión Gráfica, Composición y Proyectos | Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología | Universidad de Alicante. Instituto Universitario del Agua y las Ciencias Ambientales |
Palabras clave: | Magnetic resin | MIEX resin | Nanofiltration | Parabens | Water treatment |
Área/s de conocimiento: | Expresión Gráfica en la Ingeniería | Ingeniería Química | Nutrición y Bromatología |
Fecha de publicación: | 15-oct-2018 |
Editor: | Elsevier |
Cita bibliográfica: | Science of The Total Environment. 2018, 639: 228-236. doi:10.1016/j.scitotenv.2018.05.150 |
Resumen: | In this study, the removal of parabens from waters, using a combined treatment of magnetic ion exchange resins and subsequent filtration through nanofiltration membranes, was investigated. The selected parabens were methylparaben, ethylparaben, propylparaben and butylparaben. Two different magnetic anionic exchanger resins, MIEX® DOC and MIEX® GOLD, and two nanofiltration membranes (NF), NF-90 and DESAL-HL, were tested. The study was carried out using mono and multicomponent systems, using deionized water and natural waters sampled from two different rivers. In this way, competitive and matrix effects could be evaluated. The results showed, that with the combined treatments, higher elimination rates were obtained. The best removal efficiencies were obtained when the DOC resin was combined with both NF-90 and DESAL-HL membranes. Thus, butylparaben and propylparaben reached removal yields around 100% with both membranes, whereas the corresponding values for methylparaben were 91%, when the NF-90 membrane was employed, or 92% when DESAL-HL membrane was utilized. The elimination rates of ethylparaben with the same treatments were 96% with the NF-90 and 97% when the DESAL-HL membrane was combined with the DOC resin. The elimination percentages were higher as the paraben alkyl chain length increased. In addition, no competitiveness or matrix effects were detected. When the MIEX® GOLD resin was used for pre-treatment, membrane fouling worsened which indicated that resin selection needs to be carefully considered to achieve the best results. |
Patrocinador/es: | The authors would like to thank the Spanish Ministry of Economy and Competitiveness for their financial support during this study (project CTM2013-46669-R). |
URI: | http://hdl.handle.net/10045/75976 |
ISSN: | 0048-9697 (Print) | 1879-1026 (Online) |
DOI: | 10.1016/j.scitotenv.2018.05.150 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2018 Elsevier B.V. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.scitotenv.2018.05.150 |
Aparece en las colecciones: | INV - DIDET - Artículos de Revistas INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas INV - AAQCN - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2018_Lopez-Ortiz_etal_SciTotEnv_final.pdf | Versión final (acceso restringido) | 1,26 MB | Adobe PDF | Abrir Solicitar una copia |
2018_Lopez-Ortiz_etal_SciTotEnv_revised.pdf | Versión revisada (acceso abierto) | 1,01 MB | Adobe PDF | Abrir Vista previa |
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