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New insights on the removal of diclofenac and ibuprofen by CWPO using a magnetite-based catalyst in an up-flow fixed-bed reactor

2021Journal article Restricted access
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dc.contributor.authorHuaccallo-Aguilar, Y.
dc.contributor.authorDíaz de Tuesta, Jose Luis
dc.contributor.authorÁlvarez-Torrellas, Silvia
dc.contributor.authorGomes, Helder
dc.contributor.authorLarriba, Marcos
dc.contributor.authorOvejero, Gabriel
dc.contributor.authorGarcía, Juan
dc.date.accessioned2021-03-16T15:34:19Z
dc.date.available2021-03-16T15:34:19Z
dc.date.issued2021
dc.description.abstractThis research has been focused on the removal of two anti-inflammatory drugs, diclofenac (DCF) and ibuprofen (IBU), by a continuous catalytic wet peroxide oxidation (CWPO) process using a lab-synthesized nanomagnetic catalyst (Fe3O4/MWCNTs). The central composite rotatable design (CCRD) method was used to study the effect of DCF and IBU concentration (expressed as theoretical oxygen demand (ThOD) between 0 and 52.5 mg L-1) and of the feed stream pH (from 3 to 7) on the removal of total organic carbon (TOC) and the concentration of aromatic compounds (Arm) and total phenolic compounds (TP) by CWPO. It could be observed that DCF was preferably removed from the DCF-IBU aqueous mixture at pH values ranging from 3 to 5. In addition, feed stream pH had a significant effect on the pollutants removal, as well as on TOC, TP and aromatic compounds removal, observing an increasing in the pollutants degradation when feed stream pH decreased from 7 to 3. Quadratic models predicted for response variable, such as TOC, TP and aromatic compounds removal, and their maximum model-predicted removal values were of 90.0, 80.2 and 90.0%, respectively. Finally, as a proof of concept, three environmentally-relevant aqueous matrices, spiked with DCF-IBU mixture, were treated. In this case, relatively high TOC degradation values were found after 20 h reaction time (ca. 57.7, 73.9 and 54.5% in surface water, WWTP effluent and hospital wastewater, respectively). This work deals the first study about DCF-IBU removal in aqueous solution by CWPO, as well as a continuous study using real wastewater that allow to extend the experimental results to a real scenario.pt_PT
dc.description.sponsorshipThis research was funded by the General Direction of universities and Regional Government of Madrid through REMTAVARES Network P2018/EMT-4321 and the European Social Fund by the project “PLASTIC_ TO_FUEL&MAT – Upcycling Waste Plastics into Fuel and Carbon Nanomaterials” (POCI-01-0145-FEDER-031439) and CIMO (UIDB/ 00690/2020) through ERDF under Program PT2020. Ysabel Huaccallo- Aguilar thanks for her pre-doctoral scholarship to the National program Scholarship (PRONABEC, in Spanish abbreviations) of the Ministry of Education of Peru.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHuaccallo-Aguilar, Y.; Díaz de Tuesta, Jose Luis; Álvarez-Torrellas, Silvia; Gomes, Helder; Larriba, Marcos; Ovejero, Gabriel; García, Juan José Corte (2021). New insights on the removal of diclofenac and ibuprofen by CWPO using a magnetite-based catalyst in an up-flow fixed-bed reactor. Journal of Environmental Management. ISSN 0301-4797. 281, p. 1-11pt_PT
dc.identifier.doi10.1016/j.jenvman.2020.111913pt_PT
dc.identifier.eissn1095-8630
dc.identifier.issn0301-4797
dc.identifier.urihttp://hdl.handle.net/10198/23479
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectCentral composite designpt_PT
dc.subjectChemical oxygen demandpt_PT
dc.subjectDiclofenacpt_PT
dc.subjectIbuprofenpt_PT
dc.subjectMagnetic catalystpt_PT
dc.subjectTotal organic carbonpt_PT
dc.titleNew insights on the removal of diclofenac and ibuprofen by CWPO using a magnetite-based catalyst in an up-flow fixed-bed reactorpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of Environmental Managementpt_PT
oaire.citation.volume281pt_PT
person.familyNameDíaz de Tuesta
person.familyNameGomes
person.givenNameJose Luis
person.givenNameHelder
person.identifier.ciencia-id7A1F-022B-7DBF
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0003-2408-087X
person.identifier.orcid0000-0001-6898-2408
person.identifier.ridD-9785-2017
person.identifier.scopus-author-id55755821600
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2ad0465f-5f8a-4b14-90f5-bf85996f9ce1
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscovery2ad0465f-5f8a-4b14-90f5-bf85996f9ce1

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