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Ozone membrane contactor for tertiary treatment of urban wastewater: Chemical, microbial and toxicological assessment

2023Journal article Open access
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dc.contributor.authorPresumido, Pedro Henrique
dc.contributor.authorRibeirinho-Soares, Sara
dc.contributor.authorMontes, Rosa
dc.contributor.authorQuintana, Jose B.
dc.contributor.authorRodil, Rosário
dc.contributor.authorRibeiro, Marta
dc.contributor.authorNeuparth, Teresa
dc.contributor.authorSantos, Miguel M.
dc.contributor.authorFeliciano, Manuel
dc.contributor.authorNunes, Olga C.
dc.contributor.authorGomes, Ana I.
dc.contributor.authorVilar, Vítor J.P.
dc.date.accessioned2014-10-08T09:05:03Z
dc.date.available2014-10-08T09:05:03Z
dc.date.issued2023
dc.description.abstractA membrane ozone contactor, operated under continuous mode, was applied to promote the tertiary treatment of urban wastewater (UWW), targeting the removal of contaminants of emerging concern (CECs), bacterial disinfection, and toxicity reduction. This system relies on the homogeneous radial distribution of ozone (O3) in the reaction zone by "titration" through a microfiltration borosilicate tubular membrane, while the UWW swirls around the membrane and drags the O3 microbubbles generated in the membrane shell-side. The membrane is coated with titanium dioxide (TiO2-P25) and radiation can be externally supplied via four UV lamps. The ozonation tests were carried out with secondary-treated UWW collected in different seasons (winter and summer) and spiked with a mix of 19 CECs (10 & mu;g L-1 each). For an O3 dose of 18 g m-3, the best performance was obtained by increasing the O3 concentration (maximum [O3]G,inlet of 200 g Nm-3) and decreasing the gas flow rate (minimum QG of 0.15 Ndm3 min-1), providing the highest ozone transfer yield (88 %) and, thus higher specific ozone dose (g O3 per g dissolved organic carbon). Under these conditions, removals >80 % or concentrations below the limit of quantification were obtained for up to 13 of the 19 CECs and reductions up to 5 log units for total heterotrophs and below the limit of detection for enterobacteria and enterococci. Tests including a UVC dose of 0.10 kJ L-1 enhanced disinfection ability but had no impact on CECs oxidation. After ozonation, the abundance of antibiotic resistant bacteria was reduced but not elimi-nated , microbial regrowth after 3-day storage was observed. No toxic effect was detected on zebrafish embryos using a dilution factor of 4 for the ozonized UWW , when granular activated carbon adsorption was subsequently applied the dilution factor decreased to 2.por
dc.description.sponsorshipThis work was financially supported by (i) Project NOR-WATER funded by Interreg VA Spain-Portugal cooperation programme, Cross-Border North Portugal/Galizia Spain Cooperation Program (POCTEP), ref. 0725_NOR_WATER_1_P; (ii) National funds through the FCT/MCTES (PIDDAC), under the project PTDC/EAM-AMB/4702/ 2020 (OZONE4WATER); (iii) Project “Healthy Waters – Identification, Elimination, Social Awareness and Education of Water Chemical and BiologicalMicropollutants with Health and Environmental Implications”, with reference NORTE-01-0145-FEDER-000069, supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF); and (iv) LA/P/0045/2020 (ALiCE), UIDB/50020/ 2020 and UIDP/50020/2020 (LSRE-LCM), and also UIDB/00511/2020 and UIDP/00511/2020 (LEPABE), funded by national funds through FCT/MCTES (PIDDAC). P. H. Presumido acknowledges FCT for his scholarship (SFRH/BD/138756/2018 and COVID/BD/152947/2022). Vítor J.P. Vilar and T. Neuparth acknowledges the FCT Individual Call to Scientific Employment Stimulus 2017 (CEECIND/01317/2017) and 2022 (2022.02925.CEECIND), respectively. The researchers from the University of Santiago de Compostela would also like to acknowledge funding provided by Xunta de Galicia (ED431C 2021/06), the Spanish Agencia Estatal de Investigación – MCIN/AEI/10.13039/501100011033 (ref. PID2020- 117686RB-C32) and Banco Santander and Universidade de Santiago de Compostela for the sponsorship of “outstanding researcher contract” of R. Montes.
dc.identifier.citationPresumido, Pedro Henrique; Ribeirinho-Soares, Sara; Montes, Rosa; Quintana, Jose B.; Rodil, Rosario; Ribeiro, Marta; Neuparth, Teresa; Santos, Miguel M.; Feliciano, Manuel; Nunes, Olga C.; Gomes, Ana I.; Vilar, Vítor J.P. (2023). Ozone membrane contactor for tertiary treatment of urban wastewater: Chemical, microbial and toxicological assessment. Science of The Total Environment. eISSN 1879-1026. 892, p. 1-14por
dc.identifier.doi10.1016/j.scitotenv.2023.164492
dc.identifier.eissn1879-1026
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10198/10744
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectContaminants of emerging concernpor
dc.subjectDisinfectionpor
dc.subjectOzonationpor
dc.subjectOzone membrane contactor
dc.subjectZebrafish embryos bioassays
dc.titleOzone membrane contactor for tertiary treatment of urban wastewater: Chemical, microbial and toxicological assessmentpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleScience of The Total Environmentpor
person.familyNameFeliciano
person.givenNameManuel
person.identifier.ciencia-id2D11-7230-702B
person.identifier.orcid0000-0002-3147-4511
person.identifier.scopus-author-id6603358480
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationccb9c69d-2820-493b-ab44-77b0538814fa
relation.isAuthorOfPublication.latestForDiscoveryccb9c69d-2820-493b-ab44-77b0538814fa

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