Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.14/2679 |
Resumo: | A suspended-growth bioreactor (SGB) was operated for the treatment of a gaseous stream mimicking emissions generated at a leather industrial company. The main volatile organic compounds (VOCs) present in the gaseous stream consisted of 1-methoxy-2-propanol, 2,6-dimethyl-4-heptanone, 2-butoxyethanol, toluene and butylacetate. A microbial consortium able to degrade these VOCs was successfully enriched. A laboratory- scale SGB was established and operated for 210-d with an 8 h cycle period and with shutdowns at weekends. Along this period, the SGB was exposed to organic loads (OL) between 6.5 and 2.3 £ 102 g h¡1 m¡3. Most of the compounds were not detected at the outlet of the SGB. The highest total VOC removal efficiency (RE) (ca 99%) was observed when an OL of 1.6 £ 102 g h¡1 m¡3 was fed to the SGB. The maximum total VOC elimination capacity (1.8 £ 102 g h¡1 m¡3) was achieved when the OL applied to the SGB was 2.3 £ 102 g h¡1 m¡3. For all the operating conditions, the SGB showed high levels of degradation of toluene and butylacetate (RE t 100%). This study also revealed that recirculation of the gaseous effluent improved the performance of the SGB. Overall, the SGB was shown to be robust, showing high performance after night and weekend shutdown periods. |
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Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactorBiological treatmentVapour phase bioreactorSuspended- growth bioreactorVolatile organic compoundsGaseous emissionsA suspended-growth bioreactor (SGB) was operated for the treatment of a gaseous stream mimicking emissions generated at a leather industrial company. The main volatile organic compounds (VOCs) present in the gaseous stream consisted of 1-methoxy-2-propanol, 2,6-dimethyl-4-heptanone, 2-butoxyethanol, toluene and butylacetate. A microbial consortium able to degrade these VOCs was successfully enriched. A laboratory- scale SGB was established and operated for 210-d with an 8 h cycle period and with shutdowns at weekends. Along this period, the SGB was exposed to organic loads (OL) between 6.5 and 2.3 £ 102 g h¡1 m¡3. Most of the compounds were not detected at the outlet of the SGB. The highest total VOC removal efficiency (RE) (ca 99%) was observed when an OL of 1.6 £ 102 g h¡1 m¡3 was fed to the SGB. The maximum total VOC elimination capacity (1.8 £ 102 g h¡1 m¡3) was achieved when the OL applied to the SGB was 2.3 £ 102 g h¡1 m¡3. For all the operating conditions, the SGB showed high levels of degradation of toluene and butylacetate (RE t 100%). This study also revealed that recirculation of the gaseous effluent improved the performance of the SGB. Overall, the SGB was shown to be robust, showing high performance after night and weekend shutdown periods.ElsevierVeritati - Repositório Institucional da Universidade Católica PortuguesaCarvalho, M. F.Duque, A. F.Moura, S. C.Amorim, Catarina L.Ferreira Jorge, R. M.Castro, Paula M. L.2010-10-07T13:47:56Z20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/2679eng"Chemosphere." ISSN 0045-6535. 74: 2 (2009) 232–23810.1016/j.chemosphere.2008.09.047info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-12T17:09:02ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
title |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
spellingShingle |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor Carvalho, M. F. Biological treatment Vapour phase bioreactor Suspended- growth bioreactor Volatile organic compounds Gaseous emissions |
title_short |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
title_full |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
title_fullStr |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
title_full_unstemmed |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
title_sort |
Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor |
author |
Carvalho, M. F. |
author_facet |
Carvalho, M. F. Duque, A. F. Moura, S. C. Amorim, Catarina L. Ferreira Jorge, R. M. Castro, Paula M. L. |
author_role |
author |
author2 |
Duque, A. F. Moura, S. C. Amorim, Catarina L. Ferreira Jorge, R. M. Castro, Paula M. L. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Veritati - Repositório Institucional da Universidade Católica Portuguesa |
dc.contributor.author.fl_str_mv |
Carvalho, M. F. Duque, A. F. Moura, S. C. Amorim, Catarina L. Ferreira Jorge, R. M. Castro, Paula M. L. |
dc.subject.por.fl_str_mv |
Biological treatment Vapour phase bioreactor Suspended- growth bioreactor Volatile organic compounds Gaseous emissions |
topic |
Biological treatment Vapour phase bioreactor Suspended- growth bioreactor Volatile organic compounds Gaseous emissions |
description |
A suspended-growth bioreactor (SGB) was operated for the treatment of a gaseous stream mimicking emissions generated at a leather industrial company. The main volatile organic compounds (VOCs) present in the gaseous stream consisted of 1-methoxy-2-propanol, 2,6-dimethyl-4-heptanone, 2-butoxyethanol, toluene and butylacetate. A microbial consortium able to degrade these VOCs was successfully enriched. A laboratory- scale SGB was established and operated for 210-d with an 8 h cycle period and with shutdowns at weekends. Along this period, the SGB was exposed to organic loads (OL) between 6.5 and 2.3 £ 102 g h¡1 m¡3. Most of the compounds were not detected at the outlet of the SGB. The highest total VOC removal efficiency (RE) (ca 99%) was observed when an OL of 1.6 £ 102 g h¡1 m¡3 was fed to the SGB. The maximum total VOC elimination capacity (1.8 £ 102 g h¡1 m¡3) was achieved when the OL applied to the SGB was 2.3 £ 102 g h¡1 m¡3. For all the operating conditions, the SGB showed high levels of degradation of toluene and butylacetate (RE t 100%). This study also revealed that recirculation of the gaseous effluent improved the performance of the SGB. Overall, the SGB was shown to be robust, showing high performance after night and weekend shutdown periods. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z 2010-10-07T13:47:56Z |
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://hdl.handle.net/10400.14/2679 |
url |
http://hdl.handle.net/10400.14/2679 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"Chemosphere." ISSN 0045-6535. 74: 2 (2009) 232–238 10.1016/j.chemosphere.2008.09.047 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
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repository.mail.fl_str_mv |
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1777303116171968512 |