Cruz del Álamo, A.Puga, A.Dias Soares, C.M.Pariente, M.I.Pazos, M.Molina, R.Sanromán, M.A.Martínez, F.Delerue-Matos, C.2024-06-242024-06-242024-08A. Cruz del Álamo, A. Puga, C.M. Dias Soares, M.I. Pariente, M. Pazos, R. Molina, M.A. Sanromán, F. Martínez, C. Delerue-Matos, Novel 3D electro-Fenton reactor based on a catalytic packed bed reactor of perovskite/carbon microelectrodes for the removal of carbamazepine in wastewater, Journal of Environmental Chemical Engineering, Volume 12, Issue 4, 2024, 113154, ISSN 2213-3437, https://doi.org/10.1016/j.jece.2024.1131542213-2929 (print)2213-3437 (online)https://hdl.handle.net/10115/34796This presents the efficacy of a 3D-ElectroFenton (3D-EF) reactor with active perovskite/carbon black/PTFE microelectrodes for the removal of carbamazepine (CZP) present in wastewater. Incorporating particle microelectrodes in the reactor enhanced the electron transfer and improved the electrocatalytic efficiency, leading to a more effective CZP removal. The optimal operational conditions were meticulously determined, including current intensity (0.05 – 0.3 A) and particle loading (0 – 1.5 g), to optimize the process and minimize energy consumption. The findings reveal that a current intensity of 0.2 A was the most effective, achieving 90% of CZP removal in 60 min and 3.86 kWh/mg of CZP. A higher current intensity of 0.3 A significantly increased the energy consumption (6.02 kWh/mg of CZP) for a total and faster CZP removal. The 3D-EF reactor was also operated continuously with ultrapure water and real urban wastewater fortified with CZP. A remarkable 62% CZP removal after 96 h on continuous operation was achieved with urban wastewater. Physicochemical and electrochemical characterization of microelectrodes demonstrated their high mechanical integrity and chemical stability. Our study underscores the potential of a 3D-EF system as a promising advanced oxidation process to address the continuous removal of antidepressant carbamazepine as one of the more resistant micropollutants of emerging concern in wastewater treatment, offering hope for a more efficient and sustainable futureengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/PerovskiteCarbon blackMicroelectrodesPacked bedElectro-FentonCarbamazepineinfo:eu-repo/semantics/article10.1016/j.jece.2024.113154info:eu-repo/semantics/openAccess