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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
04/04/2022 |
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Data da última atualização: |
04/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MENDONÇA, H. V. de; OTENIO, M. H.; MARCHÃO, L.; LOMEU, A.; SOUZA, D. S. de; REIS, A. |
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Afiliação: |
HENRIQUE VIEIRA DE MENDONÇA, Universidade Federal Rural do Rio de Janeiro; MARCELO HENRIQUE OTENIO, CNPGL; LEONILDE MARCHÃO, Universidade de Trás-os-Montes e Alto Douro; ALICE LOMEU, Universidade Federal Rural do Rio de Janeiro; DENISE SALVADOR DE SOUZA, Universidade Federal Rural do Rio de Janeiro; ALBERTO REIS, Laboratório Nacional de Energia e Geologia de Lisboa. |
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Título: |
Biofuel recovery from microalgae biomass grown in dairy wastewater treated with activated sludge: the next step in sustainable production. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 824, 153838, 2022. |
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DOI: |
http://dx.doi.org/10.1016/j.scitotenv.2022.153838 |
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Idioma: |
Inglês |
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Conteúdo: |
Microalgae biofuel could be the next step in avoiding the excessive use of fossil fuels and reducing negative impacts on the environment. In the present study, two species of microalgae (Scenedesmus obliquus and Chlorella vulgaris) were used for biomass production, grown in dairy wastewater treated by activated sludge systems. The photobioreactors were operated in batch and in continuous mode. The dry biomass produced was in the range of 2.30 to 3.10 g L−1. The highest volumetric yields for lipids and carbohydrates were 0.068 and 0.114 g L−1 day−1 . Maximum CO2 biofixation (750 mg L−1 day−1) was obtained in continuous mode. The maximum values for lipids (21%) and carbohydrates (39%) were recorded in the batch process with species Scenedesmus obliquus. In all of the experiments, the Linolenic acid concentration (C18:3) was greater than 12%, achieving satisfactory oxidative stability and good quality. Projected biofuel production could vary between 4,863,708 kg and 9,246,456 kg year−1 if all the dairy wastewater produced in Brazil were used for this purpose. Two hectares would be needed to produce 24,99 × 109 L year−1 of microalgae bioethanol, a far lower value than used in cultivating sugar cane. If all dairy wastewater generated annually in Brazil were used to produce microalgae biomass, it would be possible to obtain approximately 30,609 to 53,647 barrels of biodiesel per year. These data show that only by using dairy wastewater would biofuels be produced to replace 17% to 40% of the fossil fuels currently used in Brazil. MenosMicroalgae biofuel could be the next step in avoiding the excessive use of fossil fuels and reducing negative impacts on the environment. In the present study, two species of microalgae (Scenedesmus obliquus and Chlorella vulgaris) were used for biomass production, grown in dairy wastewater treated by activated sludge systems. The photobioreactors were operated in batch and in continuous mode. The dry biomass produced was in the range of 2.30 to 3.10 g L−1. The highest volumetric yields for lipids and carbohydrates were 0.068 and 0.114 g L−1 day−1 . Maximum CO2 biofixation (750 mg L−1 day−1) was obtained in continuous mode. The maximum values for lipids (21%) and carbohydrates (39%) were recorded in the batch process with species Scenedesmus obliquus. In all of the experiments, the Linolenic acid concentration (C18:3) was greater than 12%, achieving satisfactory oxidative stability and good quality. Projected biofuel production could vary between 4,863,708 kg and 9,246,456 kg year−1 if all the dairy wastewater produced in Brazil were used for this purpose. Two hectares would be needed to produce 24,99 × 109 L year−1 of microalgae bioethanol, a far lower value than used in cultivating sugar cane. If all dairy wastewater generated annually in Brazil were used to produce microalgae biomass, it would be possible to obtain approximately 30,609 to 53,647 barrels of biodiesel per year. These data show that only by using dairy wastewater wou... Mostrar Tudo |
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Palavras-Chave: |
Bioresources; Energia renovável; Renewable energy. |
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Thesagro: |
Ácido Graxo; Biocombustível; Biomassa; Laticínio; Microalga. |
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Thesaurus Nal: |
Biodiesel; Bioremediation; Fatty acids. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02571naa a2200325 a 4500
001 2141772
005 2022-04-04
008 2022 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.scitotenv.2022.153838$2DOI
100 1 $aMENDONÇA, H. V. de
245 $aBiofuel recovery from microalgae biomass grown in dairy wastewater treated with activated sludge$bthe next step in sustainable production.$h[electronic resource]
260 $c2022
520 $aMicroalgae biofuel could be the next step in avoiding the excessive use of fossil fuels and reducing negative impacts on the environment. In the present study, two species of microalgae (Scenedesmus obliquus and Chlorella vulgaris) were used for biomass production, grown in dairy wastewater treated by activated sludge systems. The photobioreactors were operated in batch and in continuous mode. The dry biomass produced was in the range of 2.30 to 3.10 g L−1. The highest volumetric yields for lipids and carbohydrates were 0.068 and 0.114 g L−1 day−1 . Maximum CO2 biofixation (750 mg L−1 day−1) was obtained in continuous mode. The maximum values for lipids (21%) and carbohydrates (39%) were recorded in the batch process with species Scenedesmus obliquus. In all of the experiments, the Linolenic acid concentration (C18:3) was greater than 12%, achieving satisfactory oxidative stability and good quality. Projected biofuel production could vary between 4,863,708 kg and 9,246,456 kg year−1 if all the dairy wastewater produced in Brazil were used for this purpose. Two hectares would be needed to produce 24,99 × 109 L year−1 of microalgae bioethanol, a far lower value than used in cultivating sugar cane. If all dairy wastewater generated annually in Brazil were used to produce microalgae biomass, it would be possible to obtain approximately 30,609 to 53,647 barrels of biodiesel per year. These data show that only by using dairy wastewater would biofuels be produced to replace 17% to 40% of the fossil fuels currently used in Brazil.
650 $aBiodiesel
650 $aBioremediation
650 $aFatty acids
650 $aÁcido Graxo
650 $aBiocombustível
650 $aBiomassa
650 $aLaticínio
650 $aMicroalga
653 $aBioresources
653 $aEnergia renovável
653 $aRenewable energy
700 1 $aOTENIO, M. H.
700 1 $aMARCHÃO, L.
700 1 $aLOMEU, A.
700 1 $aSOUZA, D. S. de
700 1 $aREIS, A.
773 $tScience of the Total Environment$gv. 824, 153838, 2022.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
11/10/2000 |
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Data da última atualização: |
22/08/2017 |
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Autoria: |
GASPAROTTO, L.; PEREIRA, J. C. R.; COSTA, M. M. da; PEREIRA, M. C. N. |
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Afiliação: |
LUADIR GASPAROTTO, CPAA; JOSE CLERIO REZENDE PEREIRA, CPAA; MIRZA CARLA NORMANDO PEREIRA, CPAA. |
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Título: |
Levantamento da incidência do amarelinho ou CVC nos pomares de citros no Estado do Amazonas. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Manaus: Embrapa Amazônia Ocidental, 1999. |
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Páginas: |
1 p. |
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Série: |
(Embrapa Amazônia Ocidental. Pesquisa em Andamento, 28). |
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ISSN: |
1517-2538 |
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Idioma: |
Português |
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Conteúdo: |
Levantamento da doenca amarelinha causada pela bacteria Xylella fastidiosa nos pomares de citros no Estado do Amazonas (Brasil). |
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Palavras-Chave: |
Amazonas; Brasil; Diseases; Species. |
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Thesagro: |
Bactéria; Doença; Espécie; Fruta Cítrica; Xylella Fastidiosa. |
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Thesaurus NAL: |
Citrus. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/83143/1/Pesquisa-99-1999.pdf
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Marc: |
LEADER 00948nam a2200301 a 4500
001 1669822
005 2017-08-22
008 1999 bl uuuu u0uu1 u #d
022 $a1517-2538
100 1 $aGASPAROTTO, L.
245 $aLevantamento da incidência do amarelinho ou CVC nos pomares de citros no Estado do Amazonas.
260 $aManaus: Embrapa Amazônia Ocidental$c1999
300 $a1 p.
490 $a(Embrapa Amazônia Ocidental. Pesquisa em Andamento, 28).
520 $aLevantamento da doenca amarelinha causada pela bacteria Xylella fastidiosa nos pomares de citros no Estado do Amazonas (Brasil).
650 $aCitrus
650 $aBactéria
650 $aDoença
650 $aEspécie
650 $aFruta Cítrica
650 $aXylella Fastidiosa
653 $aAmazonas
653 $aBrasil
653 $aDiseases
653 $aSpecies
700 1 $aPEREIRA, J. C. R.
700 1 $aCOSTA, M. M. da
700 1 $aPEREIRA, M. C. N.
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Embrapa Amazônia Ocidental (CPAA) |
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