The chemical oxygen demand / total volatile acids ratio as an anaerobic treatability indicator for landfill leachates

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dc.contributor.authorContrera, Ronan Cleber
dc.contributor.authorSilva, Kátia Cristina da Cruz
dc.contributor.authorSilva, Gustavo Henrique Ribeiro da [UNESP]
dc.contributor.authorMorita, Dione Mari
dc.contributor.authorZaiat, Marcelo
dc.contributor.authorSchalch, Valdir
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-03-02T13:04:17Z
dc.date.available2016-03-02T13:04:17Z
dc.date.issued2015
dc.description.abstractIn some operational circumstances a fast evaluation of landfill leachate anaerobic treatability is necessary, and neither Biochemical Methane Potential nor BOD/COD ratio are fast enough. Looking for a fast indicator, this work evaluated the anaerobic treatability of landfill leachate from São Carlos-SP (Brazil) in a pilot scale Anaerobic Sequence Batch Biofilm Reactor (AnSBBR). The experiment was conducted at ambient temperature in the landfill area. After the acclimation, at a second stage of operation, the AnSBBR presented efficiency above 70%, in terms of COD removal, utilizing landfill leachate without water dilution, with an inlet COD of about 11,000 mg.L-1, a TVA/COD ratio of approximately 0.6 and reaction time equal to 7 days. To evaluate the landfill leachate biodegradability variation over time, temporal profiles of concentration were performed in the AnSBBR. The landfill leachate anaerobic biodegradability was verified to have a direct and strong relationship to the TVA/COD ratio. For a TVA/CODTotal ratio lower than 0.20, the biodegradability was considered low, for ratios between 0.20 and 0.40 it was considered medium, and above 0.40 it was considered high.en
dc.description.affiliationDepartamento de Engenharia Hidráulica e Ambiental (PHA), Escola Politécnica (EP), Universidade de São Paulo (USP), Avenida Prof. Almeida Prado 83, Trav. 2, Cidade Universitária, CEP: 05508-900, São Paulo - SP, Brazil. Phone: + (55) (11) 3091 1897, + (55) (11) 3091 5396
dc.description.affiliationDepartamento de Engenharia Civil (DEC), Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP) Campus de Bauru, Av. Luiz Edmundo Carrijo Coube 14-01, Vargem Limpa, CEP: 17033-360, Bauru - SP, Brazil
dc.description.affiliationLaboratório de Processos Biológicos (LPB), Departamento de Hidráulica e Saneamento (SHS), Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Engenharia Ambiental, Bloco 4-F, Av. João Dagnone 1100, Santa Angelina, CEP: 13.563-120, São Carlos - SP, Brazil
dc.description.affiliationDepartamento de Hidráulica e Saneamento (SHS), Escola de Engenharia de São Carlos (EESC), Universidade de São Paulo (USP), Avenida Trabalhador São-Carlense 400, Centro, CEP: 13566-590, São Carlos - SP, Brazil
dc.description.affiliationUnespDepartamento de Engenharia Civil (DEC), Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP) Campus de Bauru, Av. Luiz Edmundo Carrijo Coube 14-01, Vargem Limpa, CEP: 17033-360, Bauru - SP, Brazil. E-mail: gustavoribeiro@feb.unesp.br
dc.format.extent73-86
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322015000100073
dc.identifier.citationBrazilian Journal of Chemical Engineering, v. 32, n. 1, p. 73-86, 2015.
dc.identifier.fileISSN0104-6632-2015-32-01-73-86.pdf
dc.identifier.issn0104-6632
dc.identifier.lattes9415339655312598
dc.identifier.urihttp://hdl.handle.net/11449/135756
dc.language.isoeng
dc.relation.ispartofBrazilian Journal of Chemical Engineering
dc.relation.ispartofjcr0.925
dc.relation.ispartofsjr0,395
dc.rights.accessRightsAcesso aberto
dc.sourceCurrículo Lattes
dc.subjectLandfill leachateen
dc.subjectTotal volatile acidsen
dc.subjectTreatabilityen
dc.subjectBiodegradabilityen
dc.subjectAnaerobic sequencing batch biofilm reactorsen
dc.titleThe chemical oxygen demand / total volatile acids ratio as an anaerobic treatability indicator for landfill leachatesen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Baurupt
unesp.departmentEngenharia Civilpt

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Artigos - Engenharia Civil e Ambiental - FEB