Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte

[EN] Electrochemical oxidation is a treatment process that can achieve high degrees of removal of organic emerging pollutants from wastewater. The present study evaluates the removal and mineralization degrees achieved when treating by electrochemical oxidation multicomponent mixtures containing thr...

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Autores: Balseviciute, Adele|||0000-0003-0853-5790, Giner-Sanz, Juan José|||0000-0003-0441-6102, García Gabaldón, Montserrat|||0000-0003-4254-6733, Pérez-Herranz, Valentín|||0000-0002-4010-0888, Martí Calatayud, Manuel César|||0000-0002-0745-1918, Patiño-Cantero, I., Carrillo-Abad, J.
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/229141
Acceso en línea:https://riunet.upv.es/handle/10251/229141
Access Level:acceso abierto
Palabra clave:Advanced oxidation
Boron-doped diamond
Electrochemical oxidation
Hydroxyl radical
Mineralization
Pharmaceuticals
Persulfate ion
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oai_identifier_str oai:riunet.upv.es:10251/229141
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
title Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
spellingShingle Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
Balseviciute, Adele|||0000-0003-0853-5790
Advanced oxidation
Boron-doped diamond
Electrochemical oxidation
Hydroxyl radical
Mineralization
Pharmaceuticals
Persulfate ion
title_short Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
title_full Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
title_fullStr Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
title_full_unstemmed Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
title_sort Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyte
dc.creator.none.fl_str_mv Balseviciute, Adele|||0000-0003-0853-5790
Giner-Sanz, Juan José|||0000-0003-0441-6102
García Gabaldón, Montserrat|||0000-0003-4254-6733
Pérez-Herranz, Valentín|||0000-0002-4010-0888
Martí Calatayud, Manuel César|||0000-0002-0745-1918
Patiño-Cantero, I.
Carrillo-Abad, J.
author Balseviciute, Adele|||0000-0003-0853-5790
author_facet Balseviciute, Adele|||0000-0003-0853-5790
Giner-Sanz, Juan José|||0000-0003-0441-6102
García Gabaldón, Montserrat|||0000-0003-4254-6733
Pérez-Herranz, Valentín|||0000-0002-4010-0888
Martí Calatayud, Manuel César|||0000-0002-0745-1918
Patiño-Cantero, I.
Carrillo-Abad, J.
author_role author
author2 Giner-Sanz, Juan José|||0000-0003-0441-6102
García Gabaldón, Montserrat|||0000-0003-4254-6733
Pérez-Herranz, Valentín|||0000-0002-4010-0888
Martí Calatayud, Manuel César|||0000-0002-0745-1918
Patiño-Cantero, I.
Carrillo-Abad, J.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Química y Nuclear
Escuela Técnica Superior de Ingeniería Industrial
Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental
GENERALITAT VALENCIANA
Agencia Estatal de Investigación
European Regional Development Fund
Ministerio de Ciencia e Innovación
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Advanced oxidation
Boron-doped diamond
Electrochemical oxidation
Hydroxyl radical
Mineralization
Pharmaceuticals
Persulfate ion
topic Advanced oxidation
Boron-doped diamond
Electrochemical oxidation
Hydroxyl radical
Mineralization
Pharmaceuticals
Persulfate ion
description [EN] Electrochemical oxidation is a treatment process that can achieve high degrees of removal of organic emerging pollutants from wastewater. The present study evaluates the removal and mineralization degrees achieved when treating by electrochemical oxidation multicomponent mixtures containing three model pharmaceuticals: atenolol, ibuprofen and norfloxacin. The progress of the removal process at different applied currents was followed through the evolution of the degree of mineralization and the concentration of ionic by-products. The three compounds can be effectively removed, although atenolol was found to be the most recalcitrant one. An increase in the degree of mineralization with current was noted for currents above 200 mA, reaching a maximum value of 98.8 % for an operation current of 800 mA. In general, total organic carbon declines linearly during the first stages of the process, while an exponential trend appears at the latter stages when complete mineralization is approached. Peak concentrations of some by-products, such as formate, ammonia and nitrite ions, were detected at intermediate operating times. Such compounds are further oxidized, thus being depleted from the solution towards the end of the process. On the contrary, a final plateau concentration is reached for fluoride and nitrate ions. Such events occur faster at higher operation currents, thus denoting an accelerated process of mineralization. However, higher currents also induce a decrease in the mineralization current efficiency and an increase in the specific energy consumption. Notably, for a given current, the process evolves at a similar pace regardless of the concentration of organics and supporting electrolyte. In terms of net mineralization, this implies a more efficient utilization of the generated hydroxyl radicals in the removal of organics for higher solution concentrations. Experiments conducted at constant current and organics concentration, but varying the concentration of sodium sulfate, confirmed that hydroxyl radicals are the main species responsible for the removal of pharmaceuticals, whereas the oxidation of the supporting electrolyte only plays a secondary role.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-07-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/229141
url https://riunet.upv.es/handle/10251/229141
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-147511OB-C21 CARACTERIZACION ELECTROQUIMICA DE ELECTRODOS CERAMICOS Y APLICACION AL DESARROLLO DE BATERIAS DE FLUJO REDOX Y A LA ELIMINACION DE CONTAMINANTES EMERGENTES
Generalitat Valenciana https://doi.org/10.13039/501100003359 CIGE%2F2021%2F173 Reactores de electrodiálisis y electrooxidación conjunta para la degradación eficiente de contaminantes emergentes
Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 IJC2020-044087-I
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Degradation of multicomponent pharmaceutical mixtures by electrochemical oxidation: Insights about the process evolution at varying applied currents and concentrations of organics and supporting electrolyteBalseviciute, Adele|||0000-0003-0853-5790Giner-Sanz, Juan José|||0000-0003-0441-6102García Gabaldón, Montserrat|||0000-0003-4254-6733Pérez-Herranz, Valentín|||0000-0002-4010-0888Martí Calatayud, Manuel César|||0000-0002-0745-1918Patiño-Cantero, I.Carrillo-Abad, J.Advanced oxidationBoron-doped diamondElectrochemical oxidationHydroxyl radicalMineralizationPharmaceuticalsPersulfate ion[EN] Electrochemical oxidation is a treatment process that can achieve high degrees of removal of organic emerging pollutants from wastewater. The present study evaluates the removal and mineralization degrees achieved when treating by electrochemical oxidation multicomponent mixtures containing three model pharmaceuticals: atenolol, ibuprofen and norfloxacin. The progress of the removal process at different applied currents was followed through the evolution of the degree of mineralization and the concentration of ionic by-products. The three compounds can be effectively removed, although atenolol was found to be the most recalcitrant one. An increase in the degree of mineralization with current was noted for currents above 200 mA, reaching a maximum value of 98.8 % for an operation current of 800 mA. In general, total organic carbon declines linearly during the first stages of the process, while an exponential trend appears at the latter stages when complete mineralization is approached. Peak concentrations of some by-products, such as formate, ammonia and nitrite ions, were detected at intermediate operating times. Such compounds are further oxidized, thus being depleted from the solution towards the end of the process. On the contrary, a final plateau concentration is reached for fluoride and nitrate ions. Such events occur faster at higher operation currents, thus denoting an accelerated process of mineralization. However, higher currents also induce a decrease in the mineralization current efficiency and an increase in the specific energy consumption. Notably, for a given current, the process evolves at a similar pace regardless of the concentration of organics and supporting electrolyte. In terms of net mineralization, this implies a more efficient utilization of the generated hydroxyl radicals in the removal of organics for higher solution concentrations. Experiments conducted at constant current and organics concentration, but varying the concentration of sodium sulfate, confirmed that hydroxyl radicals are the main species responsible for the removal of pharmaceuticals, whereas the oxidation of the supporting electrolyte only plays a secondary role.The authors thank Conselleria d'Innovacio, Universitats, Ciencia i Societat Digital (project reference: CIGE/2021/173) and the Agencia Estatal de Investigacion for the financial support through the grant (PID2023-147511OB-C21) funded by MICIU/AEI/10.13039/501100011033 and by ERDF/EU. J.J.G.S. is very grateful to the Ministerio de Ciencia e Innovacion, to the Next Generation EU, and the Agencia Estatal de Investigacion for their support by a Juan de la Cierva- Incorporacion fellowship (IJC2020-044087-I) funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR. Funding for open access charge: Universitat Politecnica de Valencia.ElsevierDepartamento de Ingeniería Química y NuclearEscuela Técnica Superior de Ingeniería IndustrialInstituto Universitario de Seguridad Industrial, Radiofísica y MedioambientalGENERALITAT VALENCIANAAgencia Estatal de InvestigaciónEuropean Regional Development FundMinisterio de Ciencia e InnovaciónUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20252025-07-30journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/229141reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-147511OB-C21 CARACTERIZACION ELECTROQUIMICA DE ELECTRODOS CERAMICOS Y APLICACION AL DESARROLLO DE BATERIAS DE FLUJO REDOX Y A LA ELIMINACION DE CONTAMINANTES EMERGENTESGeneralitat Valenciana https://doi.org/10.13039/501100003359 CIGE%2F2021%2F173 Reactores de electrodiálisis y electrooxidación conjunta para la degradación eficiente de contaminantes emergentesMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 IJC2020-044087-Iopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2291412026-06-13T07:49:27Z
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