Repository logo
 
Publication

Long-term stability of a non-adapted aerobic granular sludge process treating fish canning wastewater associated to EPS producers in the core microbiome

2021Journal article Open access
Simple item page
dc.contributor.authorPaulo, Ana M. S.
dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorCosta, Joana
dc.contributor.authorMesquita, Daniela P.
dc.contributor.authorFerreira, Eugénio C.
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2020-12-10T12:55:34Z
dc.date.available2020-12-10T12:55:34Z
dc.date.issued2021
dc.description.abstractThe tolerance of aerobic granular sludge (AGS) to variable wastewater composition is perceived as one of its greatest advantages compared to other aerobic processes. However, research studies select optimal operational conditions for evaluating AGS performance, such as the use of pre-adapted biomass and the control of wastewater composition. In this study, non-adapted granular sludge was used to treat fish canning wastewater presenting highly variable organic, nutrient and salt levels over a period of ca. 8 months. Despite salt levels up to 14 g NaCl L−1, the organic loading rate (OLR) was found to be the main factor driving AGS performance. Throughout the first months of operation, the OLR was generally lower than 1.2 kg COD m−3 day−1, resulting in stable nitrification and low COD and phosphorous levels at the outlet. An increase in OLR up to 2.3 kg COD m−3 day−1 disturbed nitrification and COD and phosphate removal, but a decrease to average values between 1 and 1.6 kg COD m−3 day−1 led to resuming of those processes. Most of the bacteria present in the AGS core microbiome were associated to extracellular polymeric substances (EPS) production, such as Thauera and Paracoccus, which increased during the higher OLR period. Ammonium-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) species were detected in AGS biomass; while AOB were identified throughout the operation, NOB were no further identified after the period of increased OLR. Different polyphosphate-accumulating organisms (PAOs) were detected along the process: Candidatus Accumulibacter, Tetrasphaera and Gemmatimonas. A non-adapted granular sludge was able to treat the fish canning wastewater and to tolerate salinity fluctuations up to 14 g L−1. Overall, a high microbial diversity associated to EPS producers allowed to preserve bacterial groups responsible for nutrients removal, contributing to the adaptation and long-term stability of the AGS system.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPaulo, A. M. S., Amorim, C. L., Costa, J., Mesquita, D. P., Ferreira, E. C., & Castro, P. M. L. (2021). Long-term stability of a non-adapted aerobic granular sludge process treating fish canning wastewater associated to EPS producers in the core microbiome. Science of the Total Environment, 756, [144007]. https://doi.org/10.1016/j.scitotenv.2020.144007pt_PT
dc.identifier.doi10.1016/j.scitotenv.2020.144007pt_PT
dc.identifier.eid85096832271
dc.identifier.issn0048-9697
dc.identifier.pmid33250239
dc.identifier.urihttp://hdl.handle.net/10400.14/31447
dc.identifier.wos000603487500096
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectAGSpt_PT
dc.subjectFood industry wastewaterpt_PT
dc.subjectOrganic loadpt_PT
dc.subjectSaltpt_PT
dc.subjectBacterial communitypt_PT
dc.titleLong-term stability of a non-adapted aerobic granular sludge process treating fish canning wastewater associated to EPS producers in the core microbiomept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume756
person.familyNamePaulo
person.familyNameAmorim
person.familyNameMesquita
person.familyNameFerreira
person.familyNameCastro
person.givenNameAna
person.givenNameCatarina L.
person.givenNameDaniela
person.givenNameEugénio C.
person.givenNamePaula
person.identifier2602145
person.identifier1394766
person.identifier78996
person.identifier2013444
person.identifier.ciencia-id3518-619D-B226
person.identifier.ciencia-id791E-5D42-9B68
person.identifier.ciencia-idA415-AFAC-2069
person.identifier.ciencia-idCA10-0F06-E2A0
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-3058-8285
person.identifier.orcid0000-0002-6756-552X
person.identifier.orcid0000-0002-0421-6736
person.identifier.orcid0000-0002-5400-3333
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridO-5497-2015
person.identifier.ridK-6091-2014
person.identifier.ridC-9860-2013
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id36870530900
person.identifier.scopus-author-id36896692500
person.identifier.scopus-author-id24598053100
person.identifier.scopus-author-id7103157456
person.identifier.scopus-author-id7102781782
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication28343f6d-90db-4d87-a509-366bfa70c551
relation.isAuthorOfPublication17a25a6a-22d5-40bc-9183-0c81b79a89bf
relation.isAuthorOfPublicationac0813b9-7330-44d7-8f62-c707fe7475d4
relation.isAuthorOfPublicationb4d39c3c-cb4b-44ff-b273-a52654b9fc27
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication.latestForDiscovery17a25a6a-22d5-40bc-9183-0c81b79a89bf

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
27223343.pdf
Size:
1.06 MB
Format:
Adobe Portable Document Format
Download

Collections

CBQF - Contribuições em Revistas Científicas / Contribution to Journals