117383 20230519145546.0 doi 10.1016/j.jwpe.2021.102181 sideral 127077 ART-2021-127077 eng Duque L. Novel, simple, and environmentally safe method for wastewater pollutant removal 2021 Access copy available to the general public Unrestricted In this work, a new methodology has been developed for the elimination of cobalt, nickel and a mixture of both metals from synthetic wastewater in a continuous way. This methodology consists of the electrochemical formation of ferrites of these metals through the oxidation of iron sheets and the reduction of water. Two critical process parameters, current densities and initial pollutant concentration, were analysed. An initial batch prototype resulted in efficiencies on the order of 98% under conditions of applied densities of 50 mA/cm2 and concentrations of both metals of until 100 ppm of the ions. The obtained particles have been characterized by X-ray diffraction to determine the formation of ferrites without the appearance of secondary phases. The formed particle sizes are approximately 30 nm, with hemispherical or flower-like shapes. A flow system prototype was designed for the recirculation of the solution with 100 ppm of both contaminating metals, obtaining approximately 90% recovery with an easy magnetic harvesting. © 2021 The Authors info:eu-repo/grantAgreement/ES/MICINN/PGC2018-096016-B-I00 info:eu-repo/grantAgreement/ES/MINECO-FSE/PGC2018-095642-B-I00 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 7.34 2021 ENGINEERING, CHEMICAL 23 / 143 = 0.161 2021 Q1 T1 WATER RESOURCES 8 / 102 = 0.078 2021 Q1 T1 ENGINEERING, ENVIRONMENTAL 15 / 55 = 0.273 2021 Q2 T1 1.027 2021 Biotechnology 2021 Q1 Water Science and Technology 2021 Q1 Waste Management and Disposal 2021 Q1 Process Chemistry and Technology 2021 Q1 7.2 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gutiérrez L. Universidad de Zaragoza (orcid)0000-0003-2366-3598 Menéndez N. Herrasti P. Mazario E. 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 42 (2021), 102181 [9 pp] Journal of Water Process Engineering 2214-7144 6348952 http://zaguan.unizar.es/record/117383/files/texto_completo.pdf Versión publicada 2553139 http://zaguan.unizar.es/record/117383/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:117383 articulos driver 2023-05-18-15:44:29 ARTICLE