Autor segons l'article: Amin MSA; Mozumder MSI; Stüber F; Giralt J; Fortuny A; Fabregat A; Font J
Departament: Enginyeria Química
Autor/s de la URV: Fabregat Llangostera, Azael / Font Capafons, José / Fortuny Sanromà, Agustín / Giralt Marcé, Jaume / Stüber, Frank Erich
Paraules clau: Model simulation Hydrolysis Biofilm Azo dyes Anaerobic bio-digestion
Resum: Ceramic-supported graphene oxide membrane bioreactors have already shown their potential for the anaerobic decolorization of wastewater containing azo dyes. The primary goal of this investigation was to develop a mathematical model that would be able to describe the steady-state behavior of this biodegradation process. The developed model was calibrated and validated using independent experimental data sets with various dye structure, feed concentration, hydraulic retention time (HRT), and support materials on which the biofilm was grown. The calibrated and validated model was used to analyze the intrinsic mechanism of the process and the main finding was that hydrolysis is the rate limiting step. Hydrolysis rate constant is decreased with increasing the complexity of the dye structure. Support materials with high electron transfer capacity increased the biofilm activity, therefore, increased the hydrolysis rate constant. Acetate concentration, used as an external carbon source, improved the dye removal efficiency. However, acetate to dye ratio did not have a direct relation to dye removal efficiency. Higher hydraulic retention time (HRT) increased the contact time between dye molecules and biofilm and enhanced the dye removal efficiency, too. However, it is essential to impose the right balance between HRT and external carbon sources to make the process feasible.
Àrees temàtiques: Soil science Plant science Geociências General environmental science Environmental sciences Environmental science (miscellaneous) Environmental science (all) Engineering, environmental Biotechnology & applied microbiology Biodiversidade
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: agustin.fortuny@urv.cat jaume.giralt@urv.cat jose.font@urv.cat afabrega@urv.cat frankerich.stuber@urv.cat
Identificador de l'autor: 0000-0001-5917-8741 0000-0002-4007-7905 0000-0002-5525-5401 0000-0001-9424-1400
Data d'alta del registre: 2023-02-23
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S2352186422003856
Referència a l'article segons font original: Environmental Technology & Innovation. 29
Referència de l'ítem segons les normes APA: Amin MSA; Mozumder MSI; Stüber F; Giralt J; Fortuny A; Fabregat A; Font J (2023). Biofilm model development and process analysis of anaerobic bio-digestion of azo dyes. Environmental Technology & Innovation, 29(), -. DOI: 10.1016/j.eti.2022.102962
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1016/j.eti.2022.102962
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2023
Tipus de publicació: Journal Publications
Repositori URV