Simultaneous disinfection of urban wastewater and antibiotics degradation mediated by CuMgFe-B(OH)4 layered double hydroxide with different oxidizing agents

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dc.contributor.authorde Melo Costa-Serge, Nayara [UNESP]
dc.contributor.authorLi, Chan
dc.contributor.authorFernandes Pupo Nogueira, Raquel [UNESP]
dc.contributor.authorChiron, Serge
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionIRD
dc.date.accessioned2023-07-29T16:12:04Z
dc.date.available2023-07-29T16:12:04Z
dc.date.issued2023-06-15
dc.description.abstractThe activation of peroxymonosulfate (PMS), peroxydisulfate (PDS) and hydrogen peroxide (H2O2) by CuMgFe-B(OH)4 layered double hydroxide (LDH) was investigated for the degradation of selected antibiotics (i.e., sulfamethoxazole, ciprofloxacin, cephalexin and amoxicillin) and for bacterial disinfection (Escherichia coli and Enterococcus faecalis) in secondary treated urban wastewater in dark condition. The catalyst synthesized behaved differently according to the oxidants used. H2O2 activated system was efficient for disinfection but not for antibiotics degradation due to the formation of complexes between LDH cations and H2O2. PDS activated system relied on a non-radical pathway mostly involving singlet oxygen and Cu(III) with antibiotics removal but with a disinfection capacity limited to E. coli. The comparison of the investigated systems for the removal of SMX in the secondary treated urban wastewater (STWW) showed 18% and 48% of SMX removal after 120 min of reaction with H2O2 and PDS, respectively. On the other hand, with PMS, SMX was below detection limit after 20 min of reaction, demonstrating the superior performance of LDH/PMS for the treatment of STWW. Furthermore, PMS activated with LDH provided > 90% removal of all antibiotics after 120 min and complete inactivation of the pathogens using 0.5 g L-1 of LDH and 4 mM of PMS.en
dc.description.affiliationSão Paulo State University (UNESP) Institute of Chemistry Araraquara, SP
dc.description.affiliationUNESP National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT - DATREM) Institute of Chemistry, SP
dc.description.affiliationUMR HydroSciences Montpellier University of Montpellier CNRS IRD, 15 Ave Charles Flahault
dc.description.affiliationUnespSão Paulo State University (UNESP) Institute of Chemistry Araraquara, SP
dc.description.affiliationUnespUNESP National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT - DATREM) Institute of Chemistry, SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.identifierhttp://dx.doi.org/10.1016/j.cej.2023.143080
dc.identifier.citationChemical Engineering Journal, v. 466.
dc.identifier.doi10.1016/j.cej.2023.143080
dc.identifier.issn1385-8947
dc.identifier.scopus2-s2.0-85153602046
dc.identifier.urihttp://hdl.handle.net/11449/249892
dc.language.isoeng
dc.relation.ispartofChemical Engineering Journal
dc.sourceScopus
dc.subjectBoron-based layered double hydroxide
dc.subjectEnterococcus faecalis
dc.subjectHeterogeneous Fenton
dc.subjectPersulfate
dc.subjectSulfamethoxazole
dc.titleSimultaneous disinfection of urban wastewater and antibiotics degradation mediated by CuMgFe-B(OH)4 layered double hydroxide with different oxidizing agentsen
dc.typeArtigo

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