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Performance of aerobic granular sludge in a sequencing batch bioreactor exposed to ofloxacin, norfloxacin and ciprofloxacin

2014Journal article Restricted access
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dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorMaia, Alexandra S.
dc.contributor.authorMesquita, Raquel B. R.
dc.contributor.authorRangel, António O.S.S.
dc.contributor.authorLoosdrecht, Mark C.M. van
dc.contributor.authorTiritan, Maria Elizabeth
dc.contributor.authorCastro, Paula M.L.
dc.date.accessioned2014-05-08T14:32:11Z
dc.date.available2014-05-08T14:32:11Z
dc.date.issued2014
dc.description.abstractA granular sludge sequencing batch reactor (SBR) was operated for 340 days for treating a synthetic wastewater containing fluoroquinolones (FQs), namely ofloxacin, norfloxacin and ciprofloxacin. The SBR was intermittently fed with FQs, at concentrations of 9 and 32 mM. No evidence of FQ biodegradation was observed but the pharmaceutical compounds adsorbed to the aerobic granular sludge, being gradually released into the medium in successive cycles after stopping the FQ feeding. Overall COD removal was not affected during the shock loadings. Activity of ammonia oxidizing bacteria and nitrite oxidizing bacteria did not seemto be inhibited by the presence of FQs (maximum of 0.03 and 0.01 mM for ammonium and nitrite in the effluent, respectively). However, during the FQs feeding, nitrate accumulation up to 1.7 mM was observed at the effluent suggesting that denitrificationwas inhibited. The activity of phosphate accumulating organismswas affected, as indicated by the decrease of P removal capacity during the aerobic phase. Exposure to the FQs also promoted disintegration of the granules leading to an increase of the effluent solid content, nevertheless the solid content at the bioreactor effluent returned to normal levelswithin ca. 1month after removing the FQs in the feed allowing recovery of the bedvolume. Denaturing gradient gel electrophoresis revealed a dynamic bacterial community with gradual changes due to FQs exposure. Bacterial isolates retrieved from the granules predominantly belonged to a- and g-branch of the Proteobacteria phylum.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationAMORIM, Catarina L... [et al.] - Performance of aerobic granular sludge in a sequencing batch bioreactor exposed to ofloxacin, norfloxacin and ciprofloxacin. Water Research. ISSN 0043-1354. Vol. 50, n.º1 (2014), p. 101-113por
dc.identifier.doi10.1016/j.watres.2013.10.043
dc.identifier.urihttp://hdl.handle.net/10400.14/14328
dc.identifier.wosWOS:000330909600011
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationMICROBIAL DEGRADATION OF FLUORINATED COMPOUNDS - STUDIES ON BIODEGRADATION MECHANISMS AND BIOTREATMENT SYSTEMS
dc.relationFLUOROPHARMA - Biodegradation and removal of chiral and achiral fluorinated pharmaceuticals from wastewaters
dc.relationStrategic Project - LA 16 - 2011-2012
dc.subjectAerobic granular sludgepor
dc.subjectFluoroquinolonespor
dc.subjectNutrients removalpor
dc.subjectMicrobial communitypor
dc.titlePerformance of aerobic granular sludge in a sequencing batch bioreactor exposed to ofloxacin, norfloxacin and ciprofloxacinpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMICROBIAL DEGRADATION OF FLUORINATED COMPOUNDS - STUDIES ON BIODEGRADATION MECHANISMS AND BIOTREATMENT SYSTEMS
oaire.awardTitleFLUOROPHARMA - Biodegradation and removal of chiral and achiral fluorinated pharmaceuticals from wastewaters
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F47109%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F86939%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEBB-EBI%2F111699%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.citation.endPage113
oaire.citation.issue1
oaire.citation.startPage101
oaire.citation.titleWater Research
oaire.citation.volume50
oaire.fundingStreamSFRH
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAmorim
person.familyNameMaia
person.familyNameMesquita
person.familyNameSantos Silva Rangel
person.familyNamevan Loosdrecht
person.familyNameTiritan
person.familyNameCastro
person.givenNameCatarina L.
person.givenNameAlexandra S.
person.givenNameRaquel
person.givenNameAntónio Osmaro
person.givenNameMark
person.givenNameMaria Elizabeth
person.givenNamePaula
person.identifier1394766
person.identifierJ-4630-2013
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person.identifier.ciencia-idD915-BFC0-FB3A
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-6756-552X
person.identifier.orcid0000-0002-4167-383X
person.identifier.orcid0000-0001-7745-1860
person.identifier.orcid0000-0002-6486-8947
person.identifier.orcid0000-0003-0658-4775
person.identifier.orcid0000-0003-3320-730X
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridK-6091-2014
person.identifier.ridJ-4630-2013
person.identifier.ridK-9492-2014
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id36896692500
person.identifier.scopus-author-id55332349300
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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.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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