Biomethane production from vinasse in upflow anaerobic sludge blanket reactors inoculated with granular sludge

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dc.contributor.authorBarros, Valciney Gomes de [UNESP]
dc.contributor.authorDuda, Rose Maria [UNESP]
dc.contributor.authorOliveira, Roberto Alves de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFac Technol Jaboticabal
dc.date.accessioned2018-11-26T16:54:53Z
dc.date.available2018-11-26T16:54:53Z
dc.date.issued2016-07-01
dc.description.abstractThe main objective of this study was to evaluate the anaerobic conversion of vinasse into biomethane with gradual increase in organic loading rate (OLR) in two upflow anaerobic sludge blanket (UASB) reactors, R1 and R2, with volumes of 40.5 and 21.5 L in the mesophilic temperature range. The UASB reactors were operated for 230 days with a hydraulic detection time (HDT) of 2.8 d (R1) and 2.8-1.8 d (R2). The OLR values applied in the reactors were 0.2-7.5 gtotalCOD (L d)-1 in R1 and 0.2-11.5 gtotaiCOD (L d)-1 in R2. The average total chemical oxygen demand (totaiCOD) removal efficiencies ranged from 49% to 82% and the average conversion efficiencies of the removed totaiCOD into methane were 48-58% in R1 and 39-65% in R2. The effluent recirculation was used for an OLR above 6 gtota,COD (L d)(-1) in R1 and 8 g(total)COD (L d)(-1) in R2 and was able to maintain the pH of the influent in R1 and R2 in the range from 6.5 to 6.8. However, this caused a decrease for 53-39% in the conversion efficiency of the removed totaiCOD into methane in R2 because of the increase in the recalcitrant COD in the influent. The largest methane yield values were 0.181 and 0.185 (L) CH4 (g(total) COD removed)-1 in R1 and R2, respectively. These values were attained after 140 days of operation with an OLR of 5.0-7.5 g(total)COD (L d)(-1) and totaiCOD removal efficiencies around 70 and 80%. (C) 2016 Sociedade Brasileira de Microbiologia. Published by Elsevier Editora Ltda. This is an open access article under the CC BY-NC-ND licenseen
dc.description.affiliationUniv Estadual Paulista, Fac Agr & Vet Sci, Postgrad Program Agr & Livestock Microbiol, Campus Jaboticabal, Jaboticabal, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Agr & Vet Sci, Dept Rural Engn, Lab Environm Sanitat, Campus Jaboticabal, Jaboticabal, SP, Brazil
dc.description.affiliationFac Technol Jaboticabal, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Agr & Vet Sci, Postgrad Program Agr & Livestock Microbiol, Campus Jaboticabal, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Agr & Vet Sci, Dept Rural Engn, Lab Environm Sanitat, Campus Jaboticabal, Jaboticabal, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCAPES: PNPD-3137/2010
dc.description.sponsorshipIdCNPq: 456426/2014-0
dc.format.extent628-639
dc.identifierhttp://dx.doi.org/10.1016/j.bjm.2016.04.021
dc.identifier.citationBrazilian Journal Of Microbiology. Sao Paulo: Soc Brasileira Microbiologia, v. 47, n. 3, p. 628-639, 2016.
dc.identifier.doi10.1016/j.bjm.2016.04.021
dc.identifier.fileS1517-83822016000300628.pdf
dc.identifier.issn1517-8382
dc.identifier.lattes4115632587013747
dc.identifier.orcid0000-0003-2832-2848
dc.identifier.scieloS1517-83822016000300628
dc.identifier.urihttp://hdl.handle.net/11449/161808
dc.identifier.wosWOS:000381101200015
dc.language.isoeng
dc.publisherSoc Brasileira Microbiologia
dc.relation.ispartofBrazilian Journal Of Microbiology
dc.relation.ispartofsjr0,630
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBiogas
dc.subjectMesophilic anaerobic treatment
dc.subjectMethane
dc.subjectOrganic loading rate
dc.subjectStartup
dc.titleBiomethane production from vinasse in upflow anaerobic sludge blanket reactors inoculated with granular sludgeen
dc.typeArtigo
dcterms.rightsHolderSoc Brasileira Microbiologia
unesp.author.lattes4115632587013747[3]
unesp.author.orcid0000-0003-2832-2848[3]

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Artigos - Engenharia Rural - FCAV