Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.bej.2021.107965 http://hdl.handle.net/11449/205938 |
Resumo: | This study aimed to assess the potential of the biochemical methane production and biodegradability of dairy wastewater employing a hybrid treatment: granular anaerobic sludge as inoculum and whole cells of Penicillium citrinum with high lipase activity. It was expected that mycelium-bound lipase from whole cells would enhance hydrolysis, contributing to the efficiency of anaerobic digestion by granular inoculum. Seven substrate and microbial combinations were prepared; five contained the inoculum and whole cells cultivated in different agroindustrial wastes and two were controls (inoculated and uninoculated). A synergistic microbial interaction was evidenced by the high cumulative methane production after 45 h of reaction, reaching 231 mL g−1 volatile solids. pH was maintained at values near neutrality in all treatments, and chemical oxygen demand removal ranged from 42 to 57 % in hybrid treatments. First-order and modified Gompertz kinetic models were fitted to experimental data, and a lag phase was not observed. The results show the potential of hybrid treatment of dairy wastewater with whole cells produced in waste-based media for biogas production. |
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Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludgeBiogasDairy wastewaterLipasePenicillium citrinumWhole cellThis study aimed to assess the potential of the biochemical methane production and biodegradability of dairy wastewater employing a hybrid treatment: granular anaerobic sludge as inoculum and whole cells of Penicillium citrinum with high lipase activity. It was expected that mycelium-bound lipase from whole cells would enhance hydrolysis, contributing to the efficiency of anaerobic digestion by granular inoculum. Seven substrate and microbial combinations were prepared; five contained the inoculum and whole cells cultivated in different agroindustrial wastes and two were controls (inoculated and uninoculated). A synergistic microbial interaction was evidenced by the high cumulative methane production after 45 h of reaction, reaching 231 mL g−1 volatile solids. pH was maintained at values near neutrality in all treatments, and chemical oxygen demand removal ranged from 42 to 57 % in hybrid treatments. First-order and modified Gompertz kinetic models were fitted to experimental data, and a lag phase was not observed. The results show the potential of hybrid treatment of dairy wastewater with whole cells produced in waste-based media for biogas production.Federal University of Alfenas (UNIFAL) Science and Technology InstituteSão Paulo State University (UNESP) School of Pharmaceutical SciencesUniversity of São Paulo (USP) Engineering School of LorenaSão Paulo State University (UNESP) School of Pharmaceutical SciencesScience and Technology InstituteUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Ferreira, Tainá F.Santos, Patrick A.Paula, Ariela V. [UNESP]de Castro, Heizir F.Andrade, Grazielle S.S.2021-06-25T10:23:56Z2021-06-25T10:23:56Z2021-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.bej.2021.107965Biochemical Engineering Journal, v. 169.1873-295X1369-703Xhttp://hdl.handle.net/11449/20593810.1016/j.bej.2021.1079652-s2.0-85101393592Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiochemical Engineering Journalinfo:eu-repo/semantics/openAccess2021-10-22T20:04:20Zoai:repositorio.unesp.br:11449/205938Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:09:07.804308Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
title |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
spellingShingle |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge Ferreira, Tainá F. Biogas Dairy wastewater Lipase Penicillium citrinum Whole cell |
title_short |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
title_full |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
title_fullStr |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
title_full_unstemmed |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
title_sort |
Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge |
author |
Ferreira, Tainá F. |
author_facet |
Ferreira, Tainá F. Santos, Patrick A. Paula, Ariela V. [UNESP] de Castro, Heizir F. Andrade, Grazielle S.S. |
author_role |
author |
author2 |
Santos, Patrick A. Paula, Ariela V. [UNESP] de Castro, Heizir F. Andrade, Grazielle S.S. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Science and Technology Institute Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Ferreira, Tainá F. Santos, Patrick A. Paula, Ariela V. [UNESP] de Castro, Heizir F. Andrade, Grazielle S.S. |
dc.subject.por.fl_str_mv |
Biogas Dairy wastewater Lipase Penicillium citrinum Whole cell |
topic |
Biogas Dairy wastewater Lipase Penicillium citrinum Whole cell |
description |
This study aimed to assess the potential of the biochemical methane production and biodegradability of dairy wastewater employing a hybrid treatment: granular anaerobic sludge as inoculum and whole cells of Penicillium citrinum with high lipase activity. It was expected that mycelium-bound lipase from whole cells would enhance hydrolysis, contributing to the efficiency of anaerobic digestion by granular inoculum. Seven substrate and microbial combinations were prepared; five contained the inoculum and whole cells cultivated in different agroindustrial wastes and two were controls (inoculated and uninoculated). A synergistic microbial interaction was evidenced by the high cumulative methane production after 45 h of reaction, reaching 231 mL g−1 volatile solids. pH was maintained at values near neutrality in all treatments, and chemical oxygen demand removal ranged from 42 to 57 % in hybrid treatments. First-order and modified Gompertz kinetic models were fitted to experimental data, and a lag phase was not observed. The results show the potential of hybrid treatment of dairy wastewater with whole cells produced in waste-based media for biogas production. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:23:56Z 2021-06-25T10:23:56Z 2021-05-01 |
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.bej.2021.107965 Biochemical Engineering Journal, v. 169. 1873-295X 1369-703X http://hdl.handle.net/11449/205938 10.1016/j.bej.2021.107965 2-s2.0-85101393592 |
url |
http://dx.doi.org/10.1016/j.bej.2021.107965 http://hdl.handle.net/11449/205938 |
identifier_str_mv |
Biochemical Engineering Journal, v. 169. 1873-295X 1369-703X 10.1016/j.bej.2021.107965 2-s2.0-85101393592 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biochemical Engineering Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1808129398153412608 |