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Removal of diclofenac and sulfamethoxazole from aqueous solutions and wastewaters using a three-dimensional electrochemical process

2022-10Journal article Open access
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dc.contributor.authorSoares, Cristina
dc.contributor.authorCorreia-Sá, Luísa
dc.contributor.authorPaíga, Paula
dc.contributor.authorBarbosa, Carlos
dc.contributor.authorRemor, Paula Verônica
dc.contributor.authorFreitas, Olga
dc.contributor.authorMoreira, Manuela M.
dc.contributor.authorNouws, Henri
dc.contributor.authorCorreia, Manuela
dc.contributor.authorGhanbari, Amir
dc.contributor.authorRodrigues, António J.
dc.contributor.authorOliveira, Carlos M.
dc.contributor.authorFigueiredo, Sónia
dc.contributor.authorDelerue-Matos, Cristina
dc.date.accessioned2023-01-27T15:22:20Z
dc.date.available2023-01-27T15:22:20Z
dc.date.issued2022-10
dc.description.abstractThe three-dimensional (3D) electrochemical treatment process was studied for the removal of two pharmaceuticals, diclofenac (anti-inflammatory) and sulfamethoxazole (antibiotic), in mono and bi-component systems. Adsorption and conventional two-dimensional electrochemical processes were initially studied and then combined to develop the 3D process. The influence of different operating parameters on the removal efficiency was studied: the distance between the cathode and the anode, the pharmaceutical and electrolyte (NaCl) concentrations, the pH, and the (carbon-based) adsorbent used as particulate electrode (biochar and commercial activated carbon, granulometry, and amount). The energy consumption and the electric energy per order were evaluated. The results demonstrate the efficiency of the 3D process for the removal of diclofenac and sulfamethoxazole from aqueous solutions, both for mono- and bi-component systems, achieving their complete removal respectively in 10 and 30 min, using a Mixed Metal Oxide anode (titanium-coated with RuO2-IrO2-TiO2), a stainless steel cathode, a biochar particulate electrode (1–2 mm), an initial pharmaceutical concentration of 10 mg/L, an inter-electrode distance of 7.5 cm, a pH value of 7 and a current density of 7 mA/cm2. The optimised 3D process was also successfully applied to a wastewater treatment plant effluent, but lower removal efficiencies were observed (after 30 min) for bi-component fortified samples; 49% for DCF and 86% for SMX, with energy consumptions of 1224 and 613 Wh/g and an electric energy per order of 19.1 and 8.77 kWh/m3 respectively. On the other hand, the pharmaceuticals were completely removed from the effluent when real concentrations (i.e. without their addition) were usedpt_PT
dc.description.sponsorshipThis research was funded by the Associate Laboratory for Green Chemistry-LAQV, which is funded by Portuguese national funds through projects UIDB/50006/2020, UIDP/50006/20POCI-01–0247-FEDER-039882), sponsored by the Program “Portugal 2020″, and co-funded by “Fundo Europeu de Desenvolvimento Regional (FEDER)” through POCI. M.M.M. (CEECIND/02702/2017) is grateful for the financial support through national funds (FCT). P. Remor acknowledges FCT for the Ph.D. grant (SFRH/BD/020, and LA/P/0008/2020, from the Fundaç ão para a Ciência e a Tecnologia (FCT)/Ministério da Ciência, Tecnologia e Ensino Superior (MCTES). This research also was funded through project OXI-e3D (7543/2020)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jece.2022.108419pt_PT
dc.identifier.issn2213-3437
dc.identifier.urihttp://hdl.handle.net/10400.22/21959
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationSFRH/BD/07543/2020pt_PT
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationNot Available
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2213343722012921?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAdvanced oxidation processespt_PT
dc.subjectBiocharpt_PT
dc.subject3D Electrochemical treatmentpt_PT
dc.subjectPharmaceuticalspt_PT
dc.subjectTertiary treatmentspt_PT
dc.subjectWastewaterspt_PT
dc.titleRemoval of diclofenac and sulfamethoxazole from aqueous solutions and wastewaters using a three-dimensional electrochemical processpt_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.awardTitleNot Available
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.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F02702%2F2017%2FCP1427%2FCT0004/PT
oaire.citation.issue5pt_PT
oaire.citation.startPage108419pt_PT
oaire.citation.titleJournal of Environmental Chemical Engineeringpt_PT
oaire.citation.volume10pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 2017
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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