Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal
Ano de defesa: | 2015 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
Centro de Ciências Rurais |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos
|
Departamento: |
Ciência e Tecnologia dos Alimentos
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/14827 |
Resumo: | The photosynthetic conversion of carbon dioxide (CO2) for the microalgae biomass production need photobioreactors with configurations settings. The objective was to develop a hybrid photobioreactor for CO2 fixation and formation of microalgae biomass. Photobioreactor with height/diameter (L/D) of 1.46, as the principal criterion for the scale-up, was projected. Hydrodynamic parameters of the system were determined by the retention time and mixing, fluid dynamics and volume percentage in lighting versus volume in darkness (VI/VE). The biomass concentration and pH dynamics were evaluated in function of VI/VE, circulation rate, light intensity, temperature and CO2 concentration in reactor operating in continuous and discontinuous system. Maximum productivity 122.38 mg/L.h, concentration 3100 mg/L and carbon biofixation in biomass of 3.4% were achieved. Optimum operating condition of 20% VI/VE, 0.65 L/min circulation rate, 13000 lux light intensity, 25 °C temperature, 15% CO2 concentration, 120 m-1 of S/V ratio and transitional fluid flow. Thus, there is clear evidence of the potential of the concept photobioreactor proposed to provide production processes for carbon biofixation and to obtain high yields of microalgae biomass. |
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2018-11-13T20:25:58Z2018-11-13T20:25:58Z2015-12-10http://repositorio.ufsm.br/handle/1/14827The photosynthetic conversion of carbon dioxide (CO2) for the microalgae biomass production need photobioreactors with configurations settings. The objective was to develop a hybrid photobioreactor for CO2 fixation and formation of microalgae biomass. Photobioreactor with height/diameter (L/D) of 1.46, as the principal criterion for the scale-up, was projected. Hydrodynamic parameters of the system were determined by the retention time and mixing, fluid dynamics and volume percentage in lighting versus volume in darkness (VI/VE). The biomass concentration and pH dynamics were evaluated in function of VI/VE, circulation rate, light intensity, temperature and CO2 concentration in reactor operating in continuous and discontinuous system. Maximum productivity 122.38 mg/L.h, concentration 3100 mg/L and carbon biofixation in biomass of 3.4% were achieved. Optimum operating condition of 20% VI/VE, 0.65 L/min circulation rate, 13000 lux light intensity, 25 °C temperature, 15% CO2 concentration, 120 m-1 of S/V ratio and transitional fluid flow. Thus, there is clear evidence of the potential of the concept photobioreactor proposed to provide production processes for carbon biofixation and to obtain high yields of microalgae biomass.A conversão fotossintética de dióxido de carbono (CO2) para o cultivo e produção de biomassa microalgal necessita de fotobiorreatores com configurações eficientes. O objetivo do trabalho foi desenvolver um fotobiorreator híbrido para a conversão de CO2 em biomassa microalgal. Projetou-se um fotobiorreator com relação altura/diâmetro (L/D) de 1,46 sendo este o principal critério que determina a ampliação de escala. Determinou-se a hidrodinâmica do sistema através do tempo de retenção e mistura, dinâmica do fluido e porcentagem de volume em iluminação em relação ao volume no escuro (VI/VE). Foram avaliados a concentração da biomassa e dinâmica do pH em função da porcentagem de VI/VE, velocidade de circulação, intensidade de iluminação, temperatura e concentração de CO2 com o reator em operação contínua e descontínua. Os valores máximos atingidos foram 3100 mg/L, 122,38 mg/L.h para concentração celular e produtividade em biomassa, respetivamente, e 3,4 % de biofixação de carbono na biomassa. Parâmetros operacionais ótimos de 20 % de VI/VE, 0,65 L/min de velocidade de circulação, 13000 lux de intensidade luminosa, 25 °C de temperatura, 15% de concentração de CO2, relação superfície/volume 120 m-1 e escoamento transicional do fluido. Por isso, há uma clara evidência do potencial do conceito do fotobiorreator proposto para fornecer processos de produção para o sequestro de carbono e para a obtenção de altos rendimentos de biomassa de microalgas.porUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Ciência e Tecnologia dos AlimentosUFSMBrasilCiência e Tecnologia dos AlimentosAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessBiomassaDióxido de carbonoFotobiorreatorMicroalgasBiomassCarbon dioxidePhotobioreactorsMicroalgaeCNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOSDesenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgalDevelopment of a hybrid photobioreactor for the conversion of CO2 in microalgae biomassinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisLopes, Eduardo Jacobhttp://lattes.cnpq.br/9203445906772879Swarowsky, Alexandrehttp://lattes.cnpq.br/9525157123018041Francisco, Erika Cristinahttp://lattes.cnpq.br/0170555859750777Menezes, Cristiano Ragagnin dehttp://lattes.cnpq.br/1755735245826251Wagner, Rogerhttp://lattes.cnpq.br/4780821244553957http://lattes.cnpq.br/7532632798982607Mérida, Luis Guillermo Ramírez500700000006600fcd345d9-258e-4860-a32d-74300dde2ce9552184b9-8e8a-4d5d-ad3a-423e7fde557654497569-0d45-4151-8232-f2175102fc7516eb0a04-c3e4-4fcf-aee7-deebde98b2336123b2bd-2fef-497b-bb94-4f749ea2451117536234-2395-4244-a37f-fcbfdb645545reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGCTA_2015_MERIDA_LUIS.pdfTES_PPGCTA_2015_MERIDA_LUIS.pdfTese de Doutoradoapplication/pdf23550389http://repositorio.ufsm.br/bitstream/1/14827/1/TES_PPGCTA_2015_MERIDA_LUIS.pdf045f780b7c4f913adad57f13ab19b2dbMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
dc.title.alternative.eng.fl_str_mv |
Development of a hybrid photobioreactor for the conversion of CO2 in microalgae biomass |
title |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
spellingShingle |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal Mérida, Luis Guillermo Ramírez Biomassa Dióxido de carbono Fotobiorreator Microalgas Biomass Carbon dioxide Photobioreactors Microalgae CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
title_short |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
title_full |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
title_fullStr |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
title_full_unstemmed |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
title_sort |
Desenvolvimento de um fotobiorreator hidrido para a conversão de CO2 em biomassa microalgal |
author |
Mérida, Luis Guillermo Ramírez |
author_facet |
Mérida, Luis Guillermo Ramírez |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Lopes, Eduardo Jacob |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9203445906772879 |
dc.contributor.referee1.fl_str_mv |
Swarowsky, Alexandre |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/9525157123018041 |
dc.contributor.referee2.fl_str_mv |
Francisco, Erika Cristina |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0170555859750777 |
dc.contributor.referee3.fl_str_mv |
Menezes, Cristiano Ragagnin de |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/1755735245826251 |
dc.contributor.referee4.fl_str_mv |
Wagner, Roger |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/4780821244553957 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7532632798982607 |
dc.contributor.author.fl_str_mv |
Mérida, Luis Guillermo Ramírez |
contributor_str_mv |
Lopes, Eduardo Jacob Swarowsky, Alexandre Francisco, Erika Cristina Menezes, Cristiano Ragagnin de Wagner, Roger |
dc.subject.por.fl_str_mv |
Biomassa Dióxido de carbono Fotobiorreator Microalgas |
topic |
Biomassa Dióxido de carbono Fotobiorreator Microalgas Biomass Carbon dioxide Photobioreactors Microalgae CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
dc.subject.eng.fl_str_mv |
Biomass Carbon dioxide Photobioreactors Microalgae |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
description |
The photosynthetic conversion of carbon dioxide (CO2) for the microalgae biomass production need photobioreactors with configurations settings. The objective was to develop a hybrid photobioreactor for CO2 fixation and formation of microalgae biomass. Photobioreactor with height/diameter (L/D) of 1.46, as the principal criterion for the scale-up, was projected. Hydrodynamic parameters of the system were determined by the retention time and mixing, fluid dynamics and volume percentage in lighting versus volume in darkness (VI/VE). The biomass concentration and pH dynamics were evaluated in function of VI/VE, circulation rate, light intensity, temperature and CO2 concentration in reactor operating in continuous and discontinuous system. Maximum productivity 122.38 mg/L.h, concentration 3100 mg/L and carbon biofixation in biomass of 3.4% were achieved. Optimum operating condition of 20% VI/VE, 0.65 L/min circulation rate, 13000 lux light intensity, 25 °C temperature, 15% CO2 concentration, 120 m-1 of S/V ratio and transitional fluid flow. Thus, there is clear evidence of the potential of the concept photobioreactor proposed to provide production processes for carbon biofixation and to obtain high yields of microalgae biomass. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-12-10 |
dc.date.accessioned.fl_str_mv |
2018-11-13T20:25:58Z |
dc.date.available.fl_str_mv |
2018-11-13T20:25:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/14827 |
url |
http://repositorio.ufsm.br/handle/1/14827 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500700000006 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Ciência e Tecnologia dos Alimentos |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
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