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Electro-Fenton degradation of a ternary pharmaceutical mixture and its application in the regeneration of spent biochar

2021Journal article Restricted access
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dc.contributor.authorPuga, Antón
dc.contributor.authorMoreira, Manuela M.
dc.contributor.authorFigueiredo, Sónia A.
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorPazos, Marta
dc.contributor.authorRosales, Emilio
dc.contributor.authorSanromán, M. Ángeles
dc.date.accessioned2021-07-06T14:15:46Z
dc.date.embargo2100
dc.date.issued2021
dc.description.abstractThis study proposed an integrated valorisation system, by combining adsorption and electro-Fenton processes for fast and effective micropollutant remediation of a complex pharmaceutical mixture. The pharmaceuticals venlafaxine, fluoxetine and trazodone, commonly detected in the environment (river water and sediment), were selected in this study as target pollutants. Initially, the electro-Fenton degradation process of the ternary mixture was optimised. For this, a Box-Behnken experimental design was used and the degradation of each pollutant, as a response function, was evaluated using three key operational process parameters (iron concentration, current intensity and solution pH). The pharmaceutical mixture was removed by total adsorption onto the biochar, the regeneration of which was then carried out under the optimal electro-Fenton conditions (0.24 mA, 0.33 mM Fe2+ and pH 3.2). In addition, different options in relation to the presence of iron were considered: i) iron dissolved in aqueous solution; ii) iron supported on the biochar; iii) no addition of iron (“self-cleaning”). The results confirmed that the natural content of iron in the biochar was enough to catalyse the electro-Fenton regeneration. The adsorption-electro-Fenton regeneration process was repeated over several cycles with no reduction in the efficiency of either process. Finally, this combination (adsorption and electro-Fenton process) was tested using an aqueous matrix from a wastewater treatment plant.pt_PT
dc.description.sponsorshipThis research has been funded by the Spanish Ministry of Economy and Competitiveness (MINECO) and ERDF Funds (Grant N°CTM2017-87326-R) and ERA-NET Cofund WaterWorks2015 Call (funded by the EU and FCT/UEFISCDI/FORMAS) for financial support through the REWATER International Research project. This work was also supported by UIDB/50006/2020 and UIDP/50006/2020 by the Fundação para a Ciência e a Tecnologia (FCT Portugal)/Ministério da Ciência, Tecnologia e Ensino Superior (MCTES Portugal) through national funds. Manuela M. Moreira (project CEECIND/02702/2017) also acknowledge for her financial support financed by national funds through FCT and to REQUIMTE/LAQV. The authors are also grateful to ERASMUS+ program by founding the research stay of Anton Puga. The invitation by the E3TECH Spanish Network of Excellence (CTQ2017-90659-REDT (MEIC/AEI)) is kindly acknowledged.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jelechem.2021.115135pt_PT
dc.identifier.issn1572-6657
dc.identifier.urihttp://hdl.handle.net/10400.22/18093
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationCTM2017-87326-Rpt_PT
dc.relationFCT/UEFISCDI/FORMASpt_PT
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationCTQ2017-90659-REDTpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1572665721001612#!pt_PT
dc.subjectBiocharpt_PT
dc.subjectElectro-Fentonpt_PT
dc.subjectRegenerationpt_PT
dc.subjectFluoxetinept_PT
dc.subjectTrazadonept_PT
dc.subjectVenlafaxinept_PT
dc.titleElectro-Fenton degradation of a ternary pharmaceutical mixture and its application in the regeneration of spent biocharpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT
oaire.citation.titleJournal of Electroanalytical Chemistrypt_PT
oaire.citation.volume886pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMoreira
person.familyNameFigueiredo
person.familyNameDelerue-Matos
person.givenNameManuela M.
person.givenNameSónia
person.givenNameCristina
person.identifier1104854
person.identifier.ciencia-idA414-640D-9066
person.identifier.ciencia-id6915-A6F2-F8A1
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0003-1500-9211
person.identifier.orcid0000-0001-8548-2528
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridD-8292-2013
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id7103289231
person.identifier.scopus-author-id7004125737
person.identifier.scopus-author-id6603741848
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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