Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation

The present research examined the effects of initial substrate concentration and pH on the yield and productivity of hydrogen production by acidogenic fermentation. Assays were carried out at three different initial pH levels (5.5, 6.5 and 7.5) and three initial substrate concentrations (3, 5 and 10...

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Autores principales:	Cubillos,Genoveva, Arrué,Ramon, Jeison,David, Chamy,Rolando, Tapia,Estela, Rodríguez,Jorge, Ruiz-Filippi,Gonzalo
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2010
Materias:	acidogenic Gompertz modified heat treatment hydrogen surface response
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100011
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spelling	oai:scielo:S0717-345820100001000112010-04-28Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentationCubillos,GenovevaArrué,RamonJeison,DavidChamy,RolandoTapia,EstelaRodríguez,JorgeRuiz-Filippi,Gonzalo acidogenic Gompertz modified heat treatment hydrogen surface response The present research examined the effects of initial substrate concentration and pH on the yield and productivity of hydrogen production by acidogenic fermentation. Assays were carried out at three different initial pH levels (5.5, 6.5 and 7.5) and three initial substrate concentrations (3, 5 and 10 g COD/L). Glucose was used as carbon source and the experiments were conducted at 37°C in batch tests, after a thermal pretreatment to eliminate methanogenic microorganisms. Conversions of glucose into hydrogen were between 16.75 and 27.25% of theoretical maximum, and high values of hydrogen productivity were obtained. An optimum value for the yield of glucose between initial pH of 6.3 and 3.7 g COD/L and productivity of the 5.95 H2/gVSS h and initial pH of 6.7 and 10 g COD/L were obtained from the response surface.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.13 n.1 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100011en10.4067/S0717-34582010000100011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	acidogenic Gompertz modified heat treatment hydrogen surface response
spellingShingle	acidogenic Gompertz modified heat treatment hydrogen surface response Cubillos,Genoveva Arrué,Ramon Jeison,David Chamy,Rolando Tapia,Estela Rodríguez,Jorge Ruiz-Filippi,Gonzalo Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation
description	The present research examined the effects of initial substrate concentration and pH on the yield and productivity of hydrogen production by acidogenic fermentation. Assays were carried out at three different initial pH levels (5.5, 6.5 and 7.5) and three initial substrate concentrations (3, 5 and 10 g COD/L). Glucose was used as carbon source and the experiments were conducted at 37°C in batch tests, after a thermal pretreatment to eliminate methanogenic microorganisms. Conversions of glucose into hydrogen were between 16.75 and 27.25% of theoretical maximum, and high values of hydrogen productivity were obtained. An optimum value for the yield of glucose between initial pH of 6.3 and 3.7 g COD/L and productivity of the 5.95 H2/gVSS h and initial pH of 6.7 and 10 g COD/L were obtained from the response surface.
author	Cubillos,Genoveva Arrué,Ramon Jeison,David Chamy,Rolando Tapia,Estela Rodríguez,Jorge Ruiz-Filippi,Gonzalo
author_facet	Cubillos,Genoveva Arrué,Ramon Jeison,David Chamy,Rolando Tapia,Estela Rodríguez,Jorge Ruiz-Filippi,Gonzalo
author_sort	Cubillos,Genoveva
title	Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation
title_short	Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation
title_full	Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation
title_fullStr	Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation
title_full_unstemmed	Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation
title_sort	simultaneous effects of ph and substrate concentration on hydrogen production by acidogenic fermentation
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100011
work_keys_str_mv	AT cubillosgenoveva simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation AT arrueramon simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation AT jeisondavid simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation AT chamyrolando simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation AT tapiaestela simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation AT rodriguezjorge simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation AT ruizfilippigonzalo simultaneouseffectsofphandsubstrateconcentrationonhydrogenproductionbyacidogenicfermentation
_version_	1718441809441456128

Simultaneous effects of pH and substrate concentration on hydrogen production by acidogenic fermentation

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