Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ijhydene.2016.06.209 http://hdl.handle.net/11449/178175 |
Resumo: | This study evaluated the potential bioconversion of crude glycerol from biodiesel production, applying used cooking oil for biohydrogen production by fermentative bacteria consortia. The pretreatment of crude glycerol was made by pH adjustment. Heat treatment of the inocula and initial pH 5.5 were applied to select hydrogen-producing bacteria and inactivate hydrogen-consumers microorganisms. The inocula tested were: (I) granular sludge from the thermophilic UASB reactor used on the treatment of vinasse and (II) granular sludge from the UASB reactor used on the treatment of sanitary sludge for the assays (1) and (2), respectively. The characterization of crude glycerol presented high levels of alkalinity, methanol and soap that may be inhibitory to biologic processes of H2 production. The assays were carried in anaerobic batch reactors in order to verify the efficiencies of crude glycerol to H2 generations by the microbial consortia (20%) at 37 °C, initial pH 5.5, with 20.0 g COD L−1 glycerol. The cumulative production of hydrogen for the assays (1) and (2) were, respectively, (mmol H2 L−1) 28.49 ± 1.55 and 19.14 ± 1.67. The subsequent yields were obtained as follows: 2.2 moL H2 mol−1 glycerol and 1.1 moL H2 mol−1 glycerol, respectively. The used cooking oil was an efficient waste for bioconversion of crude glycerol to H2 production. |
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Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproductionAnaerobic bacteria consortiaCrude glycerolHydrogen bioproductionUsed cooking oilsThis study evaluated the potential bioconversion of crude glycerol from biodiesel production, applying used cooking oil for biohydrogen production by fermentative bacteria consortia. The pretreatment of crude glycerol was made by pH adjustment. Heat treatment of the inocula and initial pH 5.5 were applied to select hydrogen-producing bacteria and inactivate hydrogen-consumers microorganisms. The inocula tested were: (I) granular sludge from the thermophilic UASB reactor used on the treatment of vinasse and (II) granular sludge from the UASB reactor used on the treatment of sanitary sludge for the assays (1) and (2), respectively. The characterization of crude glycerol presented high levels of alkalinity, methanol and soap that may be inhibitory to biologic processes of H2 production. The assays were carried in anaerobic batch reactors in order to verify the efficiencies of crude glycerol to H2 generations by the microbial consortia (20%) at 37 °C, initial pH 5.5, with 20.0 g COD L−1 glycerol. The cumulative production of hydrogen for the assays (1) and (2) were, respectively, (mmol H2 L−1) 28.49 ± 1.55 and 19.14 ± 1.67. The subsequent yields were obtained as follows: 2.2 moL H2 mol−1 glycerol and 1.1 moL H2 mol−1 glycerol, respectively. The used cooking oil was an efficient waste for bioconversion of crude glycerol to H2 production.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Institute of Chemistry - IQ UNESP, Prof. Francisco Degni 55, Zip Code 14800-060Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives Institute of Chemistry - CEMPEQC UNESP, Prof. Francisco Degni 55, Zip Code 14800-060Bioenergy Research Institute - IPBEN UNESPUniversity Center of Araraquara, R. Voluntários da Pátria, 1309, Zip Code 14801-320Institute of Chemistry - IQ UNESP, Prof. Francisco Degni 55, Zip Code 14800-060Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives Institute of Chemistry - CEMPEQC UNESP, Prof. Francisco Degni 55, Zip Code 14800-060Bioenergy Research Institute - IPBEN UNESPUniversidade Estadual Paulista (Unesp)University Center of AraraquaraRodrigues, Caroline Varella [UNESP]Santana, Kamili Oliveira [UNESP]Nespeca, Maurílio Gustavo [UNESP]Eduardo de Oliveira, José [UNESP]Maintinguer, Sandra Imaculada [UNESP]2018-12-11T17:29:09Z2018-12-11T17:29:09Z2016-09-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14641-14651application/pdfhttp://dx.doi.org/10.1016/j.ijhydene.2016.06.209International Journal of Hydrogen Energy, v. 41, n. 33, p. 14641-14651, 2016.0360-3199http://hdl.handle.net/11449/17817510.1016/j.ijhydene.2016.06.2092-s2.0-849796099512-s2.0-84979609951.pdf29670358231754060000-0002-4584-7649Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal of Hydrogen Energy1,116info:eu-repo/semantics/openAccess2023-12-27T06:18:55Zoai:repositorio.unesp.br:11449/178175Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:25:54.907731Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
title |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
spellingShingle |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction Rodrigues, Caroline Varella [UNESP] Anaerobic bacteria consortia Crude glycerol Hydrogen bioproduction Used cooking oils |
title_short |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
title_full |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
title_fullStr |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
title_full_unstemmed |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
title_sort |
Crude glycerol by transesterification process from used cooking oils: Characterization and potentialities on hydrogen bioproduction |
author |
Rodrigues, Caroline Varella [UNESP] |
author_facet |
Rodrigues, Caroline Varella [UNESP] Santana, Kamili Oliveira [UNESP] Nespeca, Maurílio Gustavo [UNESP] Eduardo de Oliveira, José [UNESP] Maintinguer, Sandra Imaculada [UNESP] |
author_role |
author |
author2 |
Santana, Kamili Oliveira [UNESP] Nespeca, Maurílio Gustavo [UNESP] Eduardo de Oliveira, José [UNESP] Maintinguer, Sandra Imaculada [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University Center of Araraquara |
dc.contributor.author.fl_str_mv |
Rodrigues, Caroline Varella [UNESP] Santana, Kamili Oliveira [UNESP] Nespeca, Maurílio Gustavo [UNESP] Eduardo de Oliveira, José [UNESP] Maintinguer, Sandra Imaculada [UNESP] |
dc.subject.por.fl_str_mv |
Anaerobic bacteria consortia Crude glycerol Hydrogen bioproduction Used cooking oils |
topic |
Anaerobic bacteria consortia Crude glycerol Hydrogen bioproduction Used cooking oils |
description |
This study evaluated the potential bioconversion of crude glycerol from biodiesel production, applying used cooking oil for biohydrogen production by fermentative bacteria consortia. The pretreatment of crude glycerol was made by pH adjustment. Heat treatment of the inocula and initial pH 5.5 were applied to select hydrogen-producing bacteria and inactivate hydrogen-consumers microorganisms. The inocula tested were: (I) granular sludge from the thermophilic UASB reactor used on the treatment of vinasse and (II) granular sludge from the UASB reactor used on the treatment of sanitary sludge for the assays (1) and (2), respectively. The characterization of crude glycerol presented high levels of alkalinity, methanol and soap that may be inhibitory to biologic processes of H2 production. The assays were carried in anaerobic batch reactors in order to verify the efficiencies of crude glycerol to H2 generations by the microbial consortia (20%) at 37 °C, initial pH 5.5, with 20.0 g COD L−1 glycerol. The cumulative production of hydrogen for the assays (1) and (2) were, respectively, (mmol H2 L−1) 28.49 ± 1.55 and 19.14 ± 1.67. The subsequent yields were obtained as follows: 2.2 moL H2 mol−1 glycerol and 1.1 moL H2 mol−1 glycerol, respectively. The used cooking oil was an efficient waste for bioconversion of crude glycerol to H2 production. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-07 2018-12-11T17:29:09Z 2018-12-11T17:29:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.ijhydene.2016.06.209 International Journal of Hydrogen Energy, v. 41, n. 33, p. 14641-14651, 2016. 0360-3199 http://hdl.handle.net/11449/178175 10.1016/j.ijhydene.2016.06.209 2-s2.0-84979609951 2-s2.0-84979609951.pdf 2967035823175406 0000-0002-4584-7649 |
url |
http://dx.doi.org/10.1016/j.ijhydene.2016.06.209 http://hdl.handle.net/11449/178175 |
identifier_str_mv |
International Journal of Hydrogen Energy, v. 41, n. 33, p. 14641-14651, 2016. 0360-3199 10.1016/j.ijhydene.2016.06.209 2-s2.0-84979609951 2-s2.0-84979609951.pdf 2967035823175406 0000-0002-4584-7649 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Journal of Hydrogen Energy 1,116 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
14641-14651 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129319046742016 |