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

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorContrera, Ronan Cleber
dc.creatorSilva, Katia Cristina da Cruz
dc.creatorSilva, Gustavo Henrique Ribeiro da
dc.creatorMorita, Dione Mari
dc.creatorZaiat, Marcelo
dc.creatorSchalch, Valdir
dc.date2015-10-21T21:07:12Z
dc.date2016-10-25T21:09:12Z
dc.date2015-10-21T21:07:12Z
dc.date2016-10-25T21:09:12Z
dc.date2015-01-01
dc.date.accessioned2017-04-06T09:09:55Z
dc.date.available2017-04-06T09:09:55Z
dc.identifierBrazilian Journal Of Chemical Engineering. Sao Paulo: Brazilian Soc Chemical Eng, v. 32, n. 1, p. 73-86, 2015.
dc.identifier0104-6632
dc.identifierhttp://hdl.handle.net/11449/129447
dc.identifierhttp://acervodigital.unesp.br/handle/11449/129447
dc.identifierhttp://dx.doi.org/10.1590/0104-6632.20150321s00003024
dc.identifierS0104-66322015000100073
dc.identifierWOS:000354788300008
dc.identifierS0104-66322015000100073.pdf
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322015000100073&lng=en&nrm=iso&tlng=en
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/940002
dc.descriptionIn 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 Sao 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.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherBrazilian Soc Chemical Eng
dc.relationBrazilian Journal Of Chemical Engineering
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectLandfill leachate
dc.subjectTotal volatile acids
dc.subjectTreatability
dc.subjectBiodegradability
dc.subjectAnaerobic sequencing batch biofilm reactors
dc.titleThe "chemical oxygen demand/total volatile acids" ratio as an anaerobic treatability indicator for landfill leachates
dc.typeOtro


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