Desempenho global de fotobiorreatores híbridos
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
dARK ID: | ark:/26339/001300000r3rn |
Texto Completo: | http://repositorio.ufsm.br/handle/1/18413 |
Resumo: | Microalgae are photosynthetic microorganisms, which have the versatility of associating the processes of CO2 bioconversion with the parallel production of inputs with high added value. However, the main problem for the consolidation of these microorganisms is the unavailability of photobioreactor configurations that support high volumes of work, to meet the industrial demands, without interfering in the metabolic performance of the cultures. The objective of this study was to: (i) characterize hydrodynamic performance in hybrid photobioreactors, (ii) to evaluate the kinetic performance of the hybrid photobioreactor, (iii) to define the CO2 absorption capacity and O2 production in hybrid photobioreactors, (iv) to determine the inorganic and organic carbon concentration profiles in the liquid and gaseous phases of the systems, (v) to standardize the method for calculating carbon balance in photobioreactors, (vi) to establish the energy balance of the hybrid photobioreactor, (vii) measure the surface area required by the hybrid photobioreactor. The results showed that the hybrid photobioreactor presented adequate hydrodynamic performance, with values for mixing time of 98 s, circulation time of 39 s, Reynolds number of 2500 and EBRT of 60 s. The microalgae Scenedesmus obliquus presented satisfactory kinetic performance, with maximum rates of carbon dioxide consumption and biomass productivity of 76.27 kg/m³/d and 57.19 kg/m³/d, respectively. According to the carbon balance analysis, volatile organic compounds (82.75%) are the main bioproducts formed. Finally, the results evidenced the hybrid photobioreactor as a potential configuration for environmental applications and commodity production. |
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Desempenho global de fotobiorreatores híbridosGlobal performance of hybrid photobiorreatorsScenedesmus obliquusFotobiorreatorCaracterização hidrodinâmicaBioconversão de CO2Balanço de carbonoScenedesmus obliquusPhotobioreactorHydrodynamic characterizationCO2 bioconversionCarbon balanceCNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOSMicroalgae are photosynthetic microorganisms, which have the versatility of associating the processes of CO2 bioconversion with the parallel production of inputs with high added value. However, the main problem for the consolidation of these microorganisms is the unavailability of photobioreactor configurations that support high volumes of work, to meet the industrial demands, without interfering in the metabolic performance of the cultures. The objective of this study was to: (i) characterize hydrodynamic performance in hybrid photobioreactors, (ii) to evaluate the kinetic performance of the hybrid photobioreactor, (iii) to define the CO2 absorption capacity and O2 production in hybrid photobioreactors, (iv) to determine the inorganic and organic carbon concentration profiles in the liquid and gaseous phases of the systems, (v) to standardize the method for calculating carbon balance in photobioreactors, (vi) to establish the energy balance of the hybrid photobioreactor, (vii) measure the surface area required by the hybrid photobioreactor. The results showed that the hybrid photobioreactor presented adequate hydrodynamic performance, with values for mixing time of 98 s, circulation time of 39 s, Reynolds number of 2500 and EBRT of 60 s. The microalgae Scenedesmus obliquus presented satisfactory kinetic performance, with maximum rates of carbon dioxide consumption and biomass productivity of 76.27 kg/m³/d and 57.19 kg/m³/d, respectively. According to the carbon balance analysis, volatile organic compounds (82.75%) are the main bioproducts formed. Finally, the results evidenced the hybrid photobioreactor as a potential configuration for environmental applications and commodity production.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESMicroalgas são microrganismos fotossintetizantes, os quais apresentam versatilidade de associar os processos de bioconversão de CO2 com a produção paralela de insumos com alto valor agregado. Contudo, o principal problema para a consolidação desses microrganismos está na indisponibilidade de configurações de fotobiorreatores que suportem altos volumes de trabalho, para atender as demandas industriais, sem interferir no desempenho metabólico das culturas. Em face disto, o trabalho teve por objetivos: (i) Caracterizar a performance hidrodinâmica em fotobiorreatores híbridos, (ii) avaliar o desempenho cinético do fotobiorreator híbrido, (ii) definir a capacidade de absorção de CO2 e produção de O2 em fotobiorreatores híbridos, (iv) determinar os perfis de concentração de carbono inorgânico e orgânico nas fases liquida e gasosa dos sistemas, (v) padronizar o método para cálculo de balanço de carbono em fotobiorreatores, (vi) estabelecer o balanço energético do fotobiorreator híbrido, (vii) mensurar a área superficial requerida pelo fotobiorreator híbrido. Os resultados obtidos demonstraram que o fotobiorreator híbrido apresentou desempenho hidrodinâmico adequado, com valores para tempo de mistura de 98 s, tempo de circulação de 39 s, número Reynolds de 2500 e EBRT de 60 s. A microalga Scenedesmus obliquus apresentou desempenho cinético satisfatório, com taxas máximas de consumo de dióxido de carbono e produtividade de biomassa de 76,27 kg/m³/d e 57,19 kg/m³/d, respectivamente. De acordo com a análise do balanço de carbono, os compostos orgânicos voláteis (82,75%) são os principais bioprodutos formados. Finalmente, os resultados evidenciaram o fotobiorreator híbrido como uma configuração potencial para aplicações ambientais e produção de commodities.Universidade Federal de Santa MariaBrasilCiência e Tecnologia dos AlimentosUFSMPrograma de Pós-Graduação em Ciência e Tecnologia dos AlimentosCentro de Ciências RuraisLopes, Eduardo Jacobhttp://lattes.cnpq.br/9203445906772879Swarowsky, Alexandrehttp://lattes.cnpq.br/9525157123018041Wagner, Rogerhttp://lattes.cnpq.br/4780821244553957Deprá, Mariany Costa2019-09-24T19:28:56Z2019-09-24T19:28:56Z2018-03-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/18413ark:/26339/001300000r3rnporAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2019-09-25T06:00:36Zoai:repositorio.ufsm.br:1/18413Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2019-09-25T06:00:36Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Desempenho global de fotobiorreatores híbridos Global performance of hybrid photobiorreators |
title |
Desempenho global de fotobiorreatores híbridos |
spellingShingle |
Desempenho global de fotobiorreatores híbridos Deprá, Mariany Costa Scenedesmus obliquus Fotobiorreator Caracterização hidrodinâmica Bioconversão de CO2 Balanço de carbono Scenedesmus obliquus Photobioreactor Hydrodynamic characterization CO2 bioconversion Carbon balance CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
title_short |
Desempenho global de fotobiorreatores híbridos |
title_full |
Desempenho global de fotobiorreatores híbridos |
title_fullStr |
Desempenho global de fotobiorreatores híbridos |
title_full_unstemmed |
Desempenho global de fotobiorreatores híbridos |
title_sort |
Desempenho global de fotobiorreatores híbridos |
author |
Deprá, Mariany Costa |
author_facet |
Deprá, Mariany Costa |
author_role |
author |
dc.contributor.none.fl_str_mv |
Lopes, Eduardo Jacob http://lattes.cnpq.br/9203445906772879 Swarowsky, Alexandre http://lattes.cnpq.br/9525157123018041 Wagner, Roger http://lattes.cnpq.br/4780821244553957 |
dc.contributor.author.fl_str_mv |
Deprá, Mariany Costa |
dc.subject.por.fl_str_mv |
Scenedesmus obliquus Fotobiorreator Caracterização hidrodinâmica Bioconversão de CO2 Balanço de carbono Scenedesmus obliquus Photobioreactor Hydrodynamic characterization CO2 bioconversion Carbon balance CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
topic |
Scenedesmus obliquus Fotobiorreator Caracterização hidrodinâmica Bioconversão de CO2 Balanço de carbono Scenedesmus obliquus Photobioreactor Hydrodynamic characterization CO2 bioconversion Carbon balance CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
description |
Microalgae are photosynthetic microorganisms, which have the versatility of associating the processes of CO2 bioconversion with the parallel production of inputs with high added value. However, the main problem for the consolidation of these microorganisms is the unavailability of photobioreactor configurations that support high volumes of work, to meet the industrial demands, without interfering in the metabolic performance of the cultures. The objective of this study was to: (i) characterize hydrodynamic performance in hybrid photobioreactors, (ii) to evaluate the kinetic performance of the hybrid photobioreactor, (iii) to define the CO2 absorption capacity and O2 production in hybrid photobioreactors, (iv) to determine the inorganic and organic carbon concentration profiles in the liquid and gaseous phases of the systems, (v) to standardize the method for calculating carbon balance in photobioreactors, (vi) to establish the energy balance of the hybrid photobioreactor, (vii) measure the surface area required by the hybrid photobioreactor. The results showed that the hybrid photobioreactor presented adequate hydrodynamic performance, with values for mixing time of 98 s, circulation time of 39 s, Reynolds number of 2500 and EBRT of 60 s. The microalgae Scenedesmus obliquus presented satisfactory kinetic performance, with maximum rates of carbon dioxide consumption and biomass productivity of 76.27 kg/m³/d and 57.19 kg/m³/d, respectively. According to the carbon balance analysis, volatile organic compounds (82.75%) are the main bioproducts formed. Finally, the results evidenced the hybrid photobioreactor as a potential configuration for environmental applications and commodity production. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03-02 2019-09-24T19:28:56Z 2019-09-24T19:28:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/18413 |
dc.identifier.dark.fl_str_mv |
ark:/26339/001300000r3rn |
url |
http://repositorio.ufsm.br/handle/1/18413 |
identifier_str_mv |
ark:/26339/001300000r3rn |
dc.language.iso.fl_str_mv |
por |
language |
por |
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.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Ciência e Tecnologia dos Alimentos UFSM Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos Centro de Ciências Rurais |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Ciência e Tecnologia dos Alimentos UFSM Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1815172382802837504 |