Biogas generation by hybrid treatment of dairy wastewater with lipolytic whole cell preparations and anaerobic sludge

Detalhes bibliográficos
Autor(a) principal: Ferreira, Tainá F.
Data de Publicação: 2021
Outros Autores: Santos, Patrick A., Paula, Ariela V. [UNESP], de Castro, Heizir F., Andrade, Grazielle S.S.
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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spelling 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
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