Energy recovery from agro-industrial wastewaters through biohydrogen production: kinetic evaluation and technological feasibility

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorLucas, S. D. M.
dc.creatorPeixoto, G.
dc.creatorMockaitis, G.
dc.creatorZaiat, M.
dc.creatorGomes, S. D.
dc.date2015-10-22T06:37:26Z
dc.date2016-10-25T21:16:12Z
dc.date2015-10-22T06:37:26Z
dc.date2016-10-25T21:16:12Z
dc.date2015-03-01
dc.date.accessioned2017-04-06T09:14:43Z
dc.date.available2017-04-06T09:14:43Z
dc.identifierRenewable Energy. Oxford: Pergamon-elsevier Science Ltd, v. 75, p. 496-504, 2015.
dc.identifier0960-1481
dc.identifierhttp://hdl.handle.net/11449/129722
dc.identifierhttp://acervodigital.unesp.br/handle/11449/129722
dc.identifierhttp://dx.doi.org/10.1016/j.renene.2014.10.025
dc.identifierWOS:000347580600052
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0960148114006521
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/940276
dc.descriptionBiohydrogen production from cassava, dairy and citrus processing wastewaters (WWs) without nutritional supplementation was evaluated in anaerobic single-batch reactors at 37 degrees C for 70 h. Hydrogen production from cassava, dairy and citrus WW was 31.41, 37.25 and 28.95 mL g(-1) of chemical oxygen demand (COD). The kinetic parameters indicated that Hy production rates for cassava processing WW (032 mL h(-1)) and dairy WW (0.31 mL h(-1)) were similar, whereas citrus processing WW exhibited the highest value (0.59 mL h(-1)). The carbohydrate degradation rate (k(1)(App)) was highest for dairy WW (0.045 h(-1)), but the most efficient overall conversion of organic matter to Hy (k(2)(App)) was observed with cassava WW (0.014 h(-1)). The rate of conversion of the organic matter of the cassava WW together with its ready availability resulted in a recovery of 0.59 10(9) MJ year(-1), the highest in this study. Cassava WW showed the highest hydrogen production potential (97.9 mL), when compared with dairy (76.1 mL) and citrus WIN (66.6 mL). The economic estimation based on the gasoline energetic equivalent indicated that a single process of H-2 production allowed the maximum economic yield of US$ 0.009 cents L-1 WW. Alternatively, a sequential hydrogen and methane process could increase energy recoveries and economic yields to values near 10.48 kJ g(-1) COD and US$ 0.61 cents L-1 WW (US$ 6.10 m(-3) WW). (C) 2014 Elsevier Ltd. All rights reserved.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherElsevier B.V.
dc.relationRenewable Energy
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBioenergy
dc.subjectHydrogen
dc.subjectAgro-industrial wastes
dc.subjectKinetics
dc.subjectEnergy recovery
dc.subjectEconomic yield
dc.titleEnergy recovery from agro-industrial wastewaters through biohydrogen production: kinetic evaluation and technological feasibility
dc.typeOtro


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