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Biological removal processes in aerobic granular sludge exposed to diclofenac

dc.contributor.authorBessa, Vânia S.
dc.contributor.authorMoreira, Irina S.
dc.contributor.authorLoosdrecht, Mark C. M. van
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2021-05-23T15:52:55Z
dc.date.available2021-05-23T15:52:55Z
dc.date.issued2022-09-19
dc.description.abstractDiclofenac is a worldwide consumed drug included in the watch list of substances to be monitored according to the European Union Water Framework Directive (Directive 2013/39/EU). Aerobic granular sludge sequencing batch reactors (AGS-SBR) are increasingly used for wastewater treatment but there is scant information on the fate and effect of micropollutants to nutrient removal processes. An AGS-SBR fed with synthetic wastewater containing diclofenac was bioaugmented with a diclofenac degrading bacterial strain and performance and microbial community dynamics was analysed. Chemical oxygen demand, phosphate and ammonia removal were not affected by the micropollutant at 0.03 mM (9.54 mg L-1). The AGS was able to retain the degrading strain, which was detected in the sludge throughout after augmentation. Nevertheless, besides some adsorption to the biomass, diclofenac was not degraded by the augmented sludge given the short operating cycles and even if batch degradation assays confirmed that the bioaugmented AGS was able to biodegrade the compound. The exposure to the pharmaceutical affected the microbial community of the sludge, separating the two first phases of reactor operation (acclimatization and granulation) from subsequent phases. The AGS was able to keep the bioaugmented strain and to maintain the main functions of nutrient removal even through the long exposure to the pharmaceutical, but combined strategies are needed to reduce the spread of micropollutants in the environment.pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.doi10.1080/09593330.2021.1921048pt_PT
dc.identifier.eid85106536563
dc.identifier.issn0959-3330
dc.identifier.pmid33902395
dc.identifier.urihttp://hdl.handle.net/10400.14/33167
dc.identifier.wos000654258800001
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectDiclofenacpt_PT
dc.subjectLabrys portucalensis F11pt_PT
dc.subjectAerobic granular sludge sequencing batch reactorpt_PT
dc.subjectBioaugmentationpt_PT
dc.subjectPerformancept_PT
dc.titleBiological removal processes in aerobic granular sludge exposed to diclofenacpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage3308
oaire.citation.issue21
oaire.citation.startPage3295
oaire.citation.titleEnvironmental Technology (United Kingdom)pt_PT
oaire.citation.volume43
person.familyNameBessa
person.familyNameMoreira
person.familyNamevan Loosdrecht
person.familyNameCastro
person.givenNameVânia
person.givenNameIrina Susana Sousa
person.givenNameMark
person.givenNamePaula
person.identifierK-5841-2014
person.identifier2013444
person.identifier.ciencia-id161E-A350-7FDE
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-2676-7184
person.identifier.orcid0000-0001-6516-0994
person.identifier.orcid0000-0003-0658-4775
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridK-8029-2014
person.identifier.ridK-5841-2014
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id35214245200
person.identifier.scopus-author-id36798094100
person.identifier.scopus-author-id7004463801
person.identifier.scopus-author-id7102781782
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3b8f352a-b4a7-4b65-bf31-3e975a7195bc
relation.isAuthorOfPublicationbb01f335-e184-4cb9-ae8a-70e62fdd5df3
relation.isAuthorOfPublication82d7f5ef-4aea-41c3-b2eb-29e19264b0af
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication.latestForDiscoverybb01f335-e184-4cb9-ae8a-70e62fdd5df3

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