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Removal of microorganisms and antibiotic resistance genes from treated urban wastewater: a comparison between aluminium sulphate and tannin coagulants

2019Journal article Restricted access
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dc.contributor.authorGrehs, Bárbara W. N.
dc.contributor.authorLopes, Ana Rita
dc.contributor.authorMoreira, Nuno F. F.
dc.contributor.authorFernandes, Telma
dc.contributor.authorLinton, Maria A. O.
dc.contributor.authorSilva, Adrián M. T.
dc.contributor.authorManaia, Célia M.
dc.contributor.authorCarissimi, Elvis
dc.contributor.authorNunes, Olga C.
dc.date.accessioned2019-10-11T13:48:49Z
dc.date.available2019-10-11T13:48:49Z
dc.date.issued2019
dc.description.abstractThe presence of antibiotic resistant-bacteria (ARB) and antibiotic resistance genes (ARG) in treated effluents of urban wastewater treatment plants (WWTP) may represent a threat to the environment and public health. Therefore, cost-effective technologies contributing to minimize loads of these contaminants in the final effluents of WWTP are required. This study aimed at assessing the capacity of coagulation to reduce the ARB&ARG load in secondary treated urban wastewater (STWW), as well as the impact of the process on the structure and diversity of the bacterial community. Coagulation performance using aluminium sulphate, a synthetic substance, and tannins, a biowaste, was compared. Samples were analysed immediately before (STWW) and after the coagulation treatment (Alu, Tan), as well as after 3-days storage in the dark at room temperature (RSTWW, RAlu, RTan), to assess possible reactivation events. Both coagulants decreased the turbidity and colour and reduced the bacterial load (16S rRNA gene copy number, total heterotrophs (HET), and ARB (faecal coliforms resistant to amoxicillin (FC/AMX) or ciprofloxacin (FC/CIP) up to 1–2 log immediately after the treatment. Both coagulants reduced the load of intl1, but in average, aluminium sulphate was able to decrease the content of the analysed ARGs (blaTEM and qnrS) to lower levels than tannin. Reactivation after storage was observed mainly in RTan. In these samples the load of the culturable populations and qnrS gene prevalence increased, sometimes to values higher than those found in the initial wastewater. Reactivation was also characterized by an increment in Gammaproteobacteria relative abundance in the bacterial community, although with distinct patterns for RTan and RAlu. Curvibacter, Undibacterium and Aquaspirillum were among the most abundant genera in RAlu and Aeromonas, Pseudomonas and Stenotrophomonas in RTan. These bacterial community shifts were in agreement with the variations in the culturable bacterial counts of HET for RTan and FC/CIP for RAlu. In summary, the overall performance of aluminium sulphate was better than that of tannins in the treatment of treated urban wastewater.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGrehs, B. W. N., Lopes, A. R., Moreira, N. F. F., Fernandes, T., Linton, M. A. O., Silva, A. M. T., … Nunes, O. C. (2019). Removal of microorganisms and antibiotic resistance genes from treated urban wastewater: A comparison between aluminium sulphate and tannin coagulants. Water Research, 166, 115056. https://doi.org/10.1016/j.watres.2019.115056pt_PT
dc.identifier.doi10.1016/j.watres.2019.115056pt_PT
dc.identifier.eid85071980541
dc.identifier.issn0043-1354
dc.identifier.pmid31520811
dc.identifier.urihttp://hdl.handle.net/10400.14/28349
dc.identifier.wos000493221600024
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationNORTE-01-0145-FEDER-000005
dc.relationLaboratory of Separation and Reaction Engineering
dc.relationLaboratory for Process Engineering, Environment, Biotechnology and Energy
dc.relationAdvanced wastewater treatment: organic micropollutants, human pathogens and antibiotic resistance genes
dc.subjectCoagulationpt_PT
dc.subjectARBpt_PT
dc.subjectARGpt_PT
dc.subjectBacterial communitiespt_PT
dc.subjectBacterial regrowthpt_PT
dc.titleRemoval of microorganisms and antibiotic resistance genes from treated urban wastewater: a comparison between aluminium sulphate and tannin coagulantspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleLaboratory of Separation and Reaction Engineering
oaire.awardTitleLaboratory for Process Engineering, Environment, Biotechnology and Energy
oaire.awardTitleAdvanced wastewater treatment: organic micropollutants, human pathogens and antibiotic resistance genes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEQU%2F50020%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEQU%2F00511%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//PD%2FBD%2F114318%2F2016/PT
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.citation.titleWater Researchpt_PT
oaire.citation.volume166
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
oaire.fundingStream5876
person.familyNameLopes
person.familyNameFernandes
person.familyNameSilva
person.familyNameManaia
person.familyNameCarissimi
person.familyNameNunes
person.givenNameAna
person.givenNameTelma
person.givenNameAdrián
person.givenNameCélia
person.givenNameElvis
person.givenNameOlga
person.identifier610791
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person.identifier.ciencia-idA41C-5189-7E46
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person.identifier.ciencia-idC31F-553B-6365
person.identifier.ciencia-idBA14-BD30-C9AF
person.identifier.orcid0000-0001-9634-3304
person.identifier.orcid0000-0002-5954-5609
person.identifier.orcid0000-0001-8551-6353
person.identifier.orcid0000-0002-3674-1789
person.identifier.orcid0000-0001-5964-7915
person.identifier.orcid0000-0003-4742-2537
person.identifier.ridJ-3346-2013
person.identifier.scopus-author-id8617740100
person.identifier.scopus-author-id56329177700
person.identifier.scopus-author-id6602465318
person.identifier.scopus-author-id6507293950
person.identifier.scopus-author-id7005088596
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.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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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