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Investigating the impact of UV-C/H2O2 and sunlight/H2O2 on the removal of antibiotics, antibiotic resistance determinants and toxicity present in urban wastewater

2020Journal article Restricted access
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dc.contributor.authorG. Michael, Stella
dc.contributor.authorMichael-Kordatou, Irene
dc.contributor.authorNahim-Granados, Samira
dc.contributor.authorPolo-López, Maria Inmaculada
dc.contributor.authorRocha, Jaqueline
dc.contributor.authorMartínez-Piernas, Ana B.
dc.contributor.authorFatta-Kassinos, Pilar
dc.contributor.authorManaia, Célia M.
dc.date.accessioned2020-02-19T17:26:40Z
dc.date.available2022-06-22T00:30:19Z
dc.date.issued2020
dc.description.abstractThis work aimed at exploring the impact of UV-C/H2O2 and sunlight/H2O2 processes, applied at pilot scale, on removing: (i) ciprofloxacin and sulfamethoxazole, (ii) cultivable Escherichia coli and Pseudomonas aeruginosa grown in the presence and absence of sub-minimal inhibitory concentrations of ciprofloxacin and sulfamethoxazole and (iii) the genes 16S rRNA and selected antibiotic resistance genes (ARGs) (i.e., sul1, blaCTX-M, qnrS, tetM, etc.) from urban wastewater. The major antibiotic transformation products (TPs) formed, were elucidated and the chronic toxicity of the whole effluent mixture against Vibrio fischeri was evaluated. The capability of the processes, in terms of the elimination of the antibiotics present in urban wastewater, varied among the two light sources used: both antibiotics were fully removed during UV-C/Η2Ο2, whereas only ciprofloxacin was removed during the sunlight/H2O2. The photo-transformation of the antibiotics led to the identification of 21 and 18 TPs of ciprofloxacin and sulfamethoxazole, respectively, while all of them retained their core moiety, responsible for the antibacterial activity. All the UV-C/H2O2-treated samples were found to be toxic, whereas the luminescence of V. fischeri was not inhibited when tested in the sunlight/H2O2-treated samples. During both processes, E. coli, P. aeruginosa and the colonies of these species still viable in the presence of antibiotics, were successfully inactivated to values below the detection limit. However, sunlight/H2O2 has not achieved complete disinfection, as regrowth of E. coli and P. aeruginosa colonies was observed after 48 h of storage of the treated effluent. Finally, none of the technologies tested was able to completely remove the target ARGs, confirming their inability to prevent the spread of resistance determinants to the environment.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMichael, S. G., Michael-Kordatou, I., Nahim-Granados, S., Polo-López, M. I., Rocha, J., Martínez-Piernas, A. B., ... Fatta-Kassinos, D. an(2020). Investigating the impact of UV-C/H2O2 and sunlight/H2O2 on the removal of antibiotics, antibiotic resistance determinants and toxicity present in urban wastewater. Chemical Engineering Journalpt_PT
dc.identifier.doi10.1016/j.cej.2020.124383pt_PT
dc.identifier.eid85079412865
dc.identifier.issn1385-8947
dc.identifier.urihttp://hdl.handle.net/10400.14/29613
dc.identifier.wos000545646800074
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationSolar Facilities for the European Research Area-Second Phase
dc.subjectAdvanced wastewater treatmentpt_PT
dc.subjectAntibioticspt_PT
dc.subjectAntimicrobial resistancept_PT
dc.subjectDisinfectionpt_PT
dc.subjectToxicitypt_PT
dc.titleInvestigating the impact of UV-C/H2O2 and sunlight/H2O2 on the removal of antibiotics, antibiotic resistance determinants and toxicity present in urban wastewaterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSolar Facilities for the European Research Area-Second Phase
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/312643/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/WaterJPI%2F0001%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F87360%2F2012/PT
oaire.citation.titleChemical Engineering Journalpt_PT
oaire.fundingStreamFP7
oaire.fundingStream3599-PPCDT
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameG. Michael
person.familyNameNahim-Granados
person.familyNameRocha
person.familyNameManaia
person.givenNameStella
person.givenNameSamira
person.givenNameJaqueline
person.givenNameCélia
person.identifier.ciencia-id721C-C3E4-6A38
person.identifier.ciencia-idC31F-553B-6365
person.identifier.orcid0000-0003-1712-8177
person.identifier.orcid0000-0002-8354-9685
person.identifier.orcid0000-0003-1651-9483
person.identifier.orcid0000-0002-3674-1789
person.identifier.ridK-3850-2014
person.identifier.scopus-author-id57151358700
person.identifier.scopus-author-id57113035100
person.identifier.scopus-author-id6602465318
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isProjectOfPublication.latestForDiscoverye12f5604-0fd7-4a51-b516-96dc4ba1d649

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