dc.contributor | Universidade de São Paulo (USP) | |
dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2016-03-02T13:04:17Z | |
dc.date.available | 2016-03-02T13:04:17Z | |
dc.date.created | 2016-03-02T13:04:17Z | |
dc.date.issued | 2015 | |
dc.identifier | Brazilian Journal of Chemical Engineering, v. 32, n. 1, p. 73-86, 2015. | |
dc.identifier | 0104-6632 | |
dc.identifier | http://hdl.handle.net/11449/135756 | |
dc.identifier | ISSN0104-6632-2015-32-01-73-86.pdf | |
dc.identifier | 9415339655312598 | |
dc.description.abstract | In 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. | |
dc.language | eng | |
dc.relation | Brazilian Journal of Chemical Engineering | |
dc.relation | 0.925 | |
dc.relation | 0,395 | |
dc.rights | Acesso aberto | |
dc.source | Currículo Lattes | |
dc.subject | Landfill leachate | |
dc.subject | Total volatile acids | |
dc.subject | Treatability | |
dc.subject | Biodegradability | |
dc.subject | Anaerobic sequencing batch biofilm reactors | |
dc.title | The chemical oxygen demand / total volatile acids ratio as an anaerobic treatability indicator for landfill leachates | |
dc.type | Artículos de revistas | |