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Structure of microbial communities when complementary effluents are anaerobically digested

2021-02Journal article Open access
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dc.contributor.authorEusebio, Ana
dc.contributor.authorNeves, André
dc.contributor.authorMarques, Isabel Paula
dc.date.accessioned2021-10-22T11:22:49Z
dc.date.available2021-10-22T11:22:49Z
dc.date.issued2021-02
dc.date.updated2021-05-19T10:37:19Z
dc.description.abstractABSTRACT: Olive oil and pig productions are important industries in Portugal that generate large volumes of wastewater with high organic load and toxicity, raising environmental concerns. The principal objective of this study is to energetically valorize these organic effluents-piggery effluent and olive mill wastewater-through the anaerobic digestion to the biogas/methane production, by means of the effluent complementarity concept. Several mixtures of piggery effluent were tested, with an increasing percentage of olive mill wastewater. The best performance was obtained for samples of piggery effluent alone and in admixture with 30% of OMW, which provided the same volume of biogas (0.8 L, 70% CH4), 63/75% COD removal, and 434/489 L CH4/kg SVin, respectively. The validation of the process was assessed by molecular evaluation through Next Generation Sequencing (NGS) of the 16S rRNA gene. The structure of the microbial communities for both samples, throughout the anaerobic process, was characterized by the predominance of bacterial populations belonging to the phylum Firmicutes, mainly Clostridiales, with Bacteroidetes being the subdominant populations. Archaea populations belonging to the genus Methanosarcina became predominant throughout anaerobic digestion, confirming the formation of methane mainly from acetate, in line with the greatest removal of volatile fatty acids (VFAs) in these samples.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationEusébio, Ana... [et.al.] - Structure of microbial communities when complementary effluents are anaerobically digested. In: Applied Sciences, 2021, Vol. 11 (3), article nº 1293pt_PT
dc.identifier.doi10.3390/app11031293pt_PT
dc.identifier.eissn2076-3417
dc.identifier.slugcv-prod-2143295
dc.identifier.urihttp://hdl.handle.net/10400.9/3592
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationELAC2014/BEE0249-SMIBIOpt_PT
dc.relationERANETLAC/0001/2014-GREENBIOREFINERYpt_PT
dc.relation.publisherversionhttps://doi.org/10.3390/app11031293pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiogas productionpt_PT
dc.subjectAnaerobic digestionpt_PT
dc.subjectOrganic wastept_PT
dc.subjectPiggery effluentpt_PT
dc.subjectOlive mill wastewaterpt_PT
dc.subjectWastewater treatmentpt_PT
dc.titleStructure of microbial communities when complementary effluents are anaerobically digestedpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume11pt_PT
person.familyNameEusebio
person.familyNameIsabel
person.givenNameAna
person.givenNameMarques
person.identifier.ciencia-idE816-AAD1-8A9D
person.identifier.ciencia-idD012-2542-2868
person.identifier.orcid0000-0003-4663-8395
person.identifier.orcid0000-0003-4607-2723
person.identifier.ridD-5594-2012
person.identifier.ridI-7291-2017
person.identifier.scopus-author-id6602511161
person.identifier.scopus-author-id7003361809
rcaap.cv.cienciaidE816-AAD1-8A9D | Ana Cristina Cais Eusébio do Rosário
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication000a0593-5419-481a-aa46-8d9126d962ca
relation.isAuthorOfPublication1b698c5b-517d-46d6-b941-ea6db91b705d
relation.isAuthorOfPublication.latestForDiscovery000a0593-5419-481a-aa46-8d9126d962ca

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