Influence of sparger type and regime of fluid on biomass and lipid productivity of chlorella vulgaris culture in a pilot airlift photobioreactor

Y. López-Hernández, C. Orozco, Elvia Ines Garcia Peña, J. Ramírez-Muñoz, L. G. Torres

Resultado de la investigación: Contribución a una revistaArtículo

Resumen

The effect of different types of spargers and the influence of the air flow rate on biomass and lipids production by Chlorella vulgaris was evaluated. These data allowed correlation of the hydrodynamic behavior of the photobioreactor with the byproducts production. The hydrodynamic characterization was developed by determining the mixing time (t M ), hold-up, and total volumetric mass transfer coefficient of CO 2 , k L a(CO 2 ) T , at increasing air flow rates for three different spargers: star-shaped, cross-shaped and porous glass surface sparger. The hydrodynamic characterization showed that the t M decreased, while the hold-up values and the k L a(CO 2 ) T increased as a result of the increment in the volumetric air flow rate between 5 to 17 L min –1 . The highest biomass and lipid concentrations were determined at the higher aeration rate (20 L min –1 ), which was correlated with the lower t M , the higher hold-up and k L a(CO 2 ) T values. Biomass and lipid production showed an inverse correlation. The highest biomass concentration (750 mg L –1 ) and the lowest lipid concentration (10 mg L –1 ) were measured with the star sparger. In contrast, when the lowest biomass concentration was obtained (240 mg L –1 ), the highest lipid concentration of 196 mg L –1 was measured with the glass sparger. The maximum biomass productivity values were determined at the lower aeration rate and the star sparger, with the minimum power per unit of volume, which could be useful for a cost-effective process.

Idioma originalInglés
Páginas (desde-hasta)87-98
Número de páginas12
PublicaciónChemical and Biochemical Engineering Quarterly
Volumen33
N.º1
DOI
EstadoPublicada - 1 ene 2019

Huella dactilar

Photobioreactors
Chlorella vulgaris
Biomass
Lipids
Productivity
Carbon Monoxide
Fluids
Hydrodynamics
Stars
Air
Flow rate
Glass
Byproducts
Mass transfer
Costs and Cost Analysis

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title = "Influence of sparger type and regime of fluid on biomass and lipid productivity of chlorella vulgaris culture in a pilot airlift photobioreactor",
abstract = "The effect of different types of spargers and the influence of the air flow rate on biomass and lipids production by Chlorella vulgaris was evaluated. These data allowed correlation of the hydrodynamic behavior of the photobioreactor with the byproducts production. The hydrodynamic characterization was developed by determining the mixing time (t M ), hold-up, and total volumetric mass transfer coefficient of CO 2 , k L a(CO 2 ) T , at increasing air flow rates for three different spargers: star-shaped, cross-shaped and porous glass surface sparger. The hydrodynamic characterization showed that the t M decreased, while the hold-up values and the k L a(CO 2 ) T increased as a result of the increment in the volumetric air flow rate between 5 to 17 L min –1 . The highest biomass and lipid concentrations were determined at the higher aeration rate (20 L min –1 ), which was correlated with the lower t M , the higher hold-up and k L a(CO 2 ) T values. Biomass and lipid production showed an inverse correlation. The highest biomass concentration (750 mg L –1 ) and the lowest lipid concentration (10 mg L –1 ) were measured with the star sparger. In contrast, when the lowest biomass concentration was obtained (240 mg L –1 ), the highest lipid concentration of 196 mg L –1 was measured with the glass sparger. The maximum biomass productivity values were determined at the lower aeration rate and the star sparger, with the minimum power per unit of volume, which could be useful for a cost-effective process.",
keywords = "Aeration regime, Airlift photobioreactor, Chlorella vulgaris, Hydrodynamic characterization, Lipids, Microalgae",
author = "Y. L{\'o}pez-Hern{\'a}ndez and C. Orozco and {Garcia Pe{\~n}a}, {Elvia Ines} and J. Ram{\'i}rez-Mu{\~n}oz and Torres, {L. G.}",
year = "2019",
month = "1",
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doi = "10.15255/CABEQ.2018.1403",
language = "Ingl{\'e}s",
volume = "33",
pages = "87--98",
journal = "Chemical and Biochemical Engineering Quarterly",
issn = "0352-9568",
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Influence of sparger type and regime of fluid on biomass and lipid productivity of chlorella vulgaris culture in a pilot airlift photobioreactor. / López-Hernández, Y.; Orozco, C.; Garcia Peña, Elvia Ines; Ramírez-Muñoz, J.; Torres, L. G.

En: Chemical and Biochemical Engineering Quarterly, Vol. 33, N.º 1, 01.01.2019, p. 87-98.

Resultado de la investigación: Contribución a una revistaArtículo

TY - JOUR

T1 - Influence of sparger type and regime of fluid on biomass and lipid productivity of chlorella vulgaris culture in a pilot airlift photobioreactor

AU - López-Hernández, Y.

AU - Orozco, C.

AU - Garcia Peña, Elvia Ines

AU - Ramírez-Muñoz, J.

AU - Torres, L. G.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The effect of different types of spargers and the influence of the air flow rate on biomass and lipids production by Chlorella vulgaris was evaluated. These data allowed correlation of the hydrodynamic behavior of the photobioreactor with the byproducts production. The hydrodynamic characterization was developed by determining the mixing time (t M ), hold-up, and total volumetric mass transfer coefficient of CO 2 , k L a(CO 2 ) T , at increasing air flow rates for three different spargers: star-shaped, cross-shaped and porous glass surface sparger. The hydrodynamic characterization showed that the t M decreased, while the hold-up values and the k L a(CO 2 ) T increased as a result of the increment in the volumetric air flow rate between 5 to 17 L min –1 . The highest biomass and lipid concentrations were determined at the higher aeration rate (20 L min –1 ), which was correlated with the lower t M , the higher hold-up and k L a(CO 2 ) T values. Biomass and lipid production showed an inverse correlation. The highest biomass concentration (750 mg L –1 ) and the lowest lipid concentration (10 mg L –1 ) were measured with the star sparger. In contrast, when the lowest biomass concentration was obtained (240 mg L –1 ), the highest lipid concentration of 196 mg L –1 was measured with the glass sparger. The maximum biomass productivity values were determined at the lower aeration rate and the star sparger, with the minimum power per unit of volume, which could be useful for a cost-effective process.

AB - The effect of different types of spargers and the influence of the air flow rate on biomass and lipids production by Chlorella vulgaris was evaluated. These data allowed correlation of the hydrodynamic behavior of the photobioreactor with the byproducts production. The hydrodynamic characterization was developed by determining the mixing time (t M ), hold-up, and total volumetric mass transfer coefficient of CO 2 , k L a(CO 2 ) T , at increasing air flow rates for three different spargers: star-shaped, cross-shaped and porous glass surface sparger. The hydrodynamic characterization showed that the t M decreased, while the hold-up values and the k L a(CO 2 ) T increased as a result of the increment in the volumetric air flow rate between 5 to 17 L min –1 . The highest biomass and lipid concentrations were determined at the higher aeration rate (20 L min –1 ), which was correlated with the lower t M , the higher hold-up and k L a(CO 2 ) T values. Biomass and lipid production showed an inverse correlation. The highest biomass concentration (750 mg L –1 ) and the lowest lipid concentration (10 mg L –1 ) were measured with the star sparger. In contrast, when the lowest biomass concentration was obtained (240 mg L –1 ), the highest lipid concentration of 196 mg L –1 was measured with the glass sparger. The maximum biomass productivity values were determined at the lower aeration rate and the star sparger, with the minimum power per unit of volume, which could be useful for a cost-effective process.

KW - Aeration regime

KW - Airlift photobioreactor

KW - Chlorella vulgaris

KW - Hydrodynamic characterization

KW - Lipids

KW - Microalgae

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DO - 10.15255/CABEQ.2018.1403

M3 - Artículo

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JO - Chemical and Biochemical Engineering Quarterly

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