102079 20210902121816.0 doi 10.1016/j.jenvman.2020.110783 sideral 118119 ART-2020-118119 eng Pueyo, Noelia (orcid)0000-0001-9050-236X Electrochemical oxidation of butyl paraben on boron doped diamond in environmental matrices and comparison with sulfate radical-AOP 2020 Access copy available to the general public Unrestricted The electrochemical oxidation (EO) of butyl paraben (BP) over boron-doped diamond (BDD) anode was studied in this work. Emphasis was put on degradation performance in various actual water matrices, including secondary treated wastewater (WW), bottled water (BW), surface water (SW), ultrapure water (UW), and ultrapure water spiked with humic acid (HA). Experiments were performed utilizing 0.1 M Na2SO4 as the electrolyte. Interestingly, matrix complexity was found to favor BP degradation, i.e. in the order WW ~ BW > SW > UW, thus implying some kind of synergy between the water matrix constituents, the reactive oxygen species (ROS) and the anode surface. The occurrence of chloride in water matrices favors reaction presumably due to the formation of chlorine-based oxidative species, and this can partially offset the need to work at increased current densities in the case of chlorine-free electrolytes. No pH effect in the range 3–8 on degradation was recorded. EO oxidation was also compared with a sulfate radical process using carbon black as activator of sodium persulfate. The matrix effect was, in this case, detrimental (i.e. UW > BW > WW), pinpointing the different behavior of different processes in similar environments. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.789 2020 ENVIRONMENTAL SCIENCES 34 / 273 = 0.125 2020 Q1 T1 1.441 2020 Environmental Engineering 2020 Q1 Waste Management and Disposal 2020 Q1 Medicine (miscellaneous) 2020 Q1 Management, Monitoring, Policy and Law 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Ormad, María P. Universidad de Zaragoza (orcid)0000-0003-3014-0322 Miguel, Natividad Universidad de Zaragoza (orcid)0000-0002-1807-5049 Kokkinos, Petros Ioannidi, Alexandra Mantzavinos, Dionissios Frontistis, Zacharias 5005 790 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Tecnologi. Medio Ambiente 269 (2020), 110783 [9 pp.] J. environ. manag. Journal of Environmental Management 0301-4797 668794 http://zaguan.unizar.es/record/102079/files/texto_completo.pdf Postprint 1744575 http://zaguan.unizar.es/record/102079/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:102079 articulos driver 2021-09-02-10:04:25 ARTICLE