Microalgae cultivation in a novel top-lit gas-lift open bioreactor

Hosseini, Nekoo Seyed; Shang, Helen; Ross, Gregory M.; Scott, John A.

doi:10.1016/j.biortech.2015.05.092

Cited by 36 publications

(10 citation statements)

References 33 publications

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“…The lines representing the relative error of ±15% are shown also in Figure 9 for illustration. Alternatively, the experimental data were successfully correlated using a combined exponential and power-law function (13). The evaluated parameters of the power-law correlation (13) and values of AAE, ABE, and R 2 are presented in Table 17 for the gas-liquid and gas-liquid-solid system.…”

Section: Gas-liquid System Gas-liquid-solid System Hypothesis Testingmentioning

confidence: 99%

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Hydrodynamics and Mass Transfer in a Concentric Internal Jet-Loop Airlift Bioreactor Equipped with a Deflector

Šulc

Dymák

2021

Energies

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The gas–liquid hydrodynamics and mass transfer were studied in a concentric tube internal jet-loop airlift reactor with a conical bottom. Comparing with a standard design, the gas separator was equipped with an adjustable deflector placed above the riser. The effect of riser superficial gas velocity uSGR on the total gas holdup εGT, homogenization time tH, and overall volumetric liquid-phase mass transfer coefficient kLa was investigated in a laboratory bioreactor, of 300 mm in inner diameter, in a two-phase air–water system and three-phase air–water–PVC–particle system with the volumetric solid fraction of 1% for various deflector clearances. The airlift was operated in the range of riser superficial gas velocity from 0.011 to 0.045 m/s. For the gas–liquid system, when reducing the deflector clearance, the total gas holdup decreased, the homogenization time increased twice compared to the highest deflector clearance tested, and the overall volumetric mass transfer coefficient slightly increased by 10–17%. The presence of a solid phase shortened the homogenization time, especially for lower uSGR and deflector clearance, and reduced the mass transfer coefficient by 15–35%. Compared to the gas–liquid system, the noticeable effect of deflector clearance was found for the kLa coefficient, which was found approx. 20–29% higher for the lowest tested deflector clearance.

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Section: Gas-liquid System Gas-liquid-solid System Hypothesis Testingmentioning

confidence: 99%

“…The microalgae potential for biodiesel production was investigated in an airlift reactor and bubble column [11], or integrated with a wastewater treatment system [12]. The effect of CO 2 -enhanced gas on lipid production was investigated by Hosseini et al [13].…”

Section: Introduction 1algae Potentialmentioning

confidence: 99%

Hydrodynamics and Mass Transfer in a Concentric Internal Jet-Loop Airlift Bioreactor Equipped with a Deflector

Šulc

Dymák

2021

Energies

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“…where a maximum biomass concentration of 0.13 g/L is reported in Chlorella vulgaris grown in the nutrient medium F/2; furthermore, Hosseini et al (2015) worked with Scenedesmus sp. cultivated in the Basal Bold's nutritious medium and registered a maximum biomass concentration of 0.62 g/L.…”

Section: Relationship Between the Growth Ratementioning

confidence: 99%

Omega fatty acids production in an isolated native Chlorella sp. from northeast Mexico with improved growth using urine as nutritive medium

Canino-Gómez¹,

Limón-Rodríguez²,

Rivas-García³

et al. 2020

Rev.Mex.Ing.Quim.

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“…На сегодняшний день одноклеточные светозависимые микроводоросли, такие как хлорелла, спирулина, дуналиелла, выращивают в биореакторах открытого и закрытого типа. Однако биореакторы открытого типа имеют определенные недостатки, такие как: огромные занимаемые площади, необходимость жаркого солнечного климата и невозможность получения чистой культуры [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionunclassified

The bioreactor with use of impeller mixers for cultivation of biomass of microalgas

Лыткина

Шенцова

Коптев³

et al. 2019

Vestn. Voronež. gos. univ. inž. tehnol.

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Cultivation of microalgas gains popularity in the different countries in recent years. As a result of such intensive development of production the extensive experience in constructioning of various types of bioreactors was gained. The bioreactor for cultivation of microalgas having the cylindrical housing divided by horizontal partitions into sections for input and output of cultural liquid and additional section with an internal specular surface, the bubble device and gate stirrers fixed on blades, the rigidly bound to shaft is developed. Planetary rotation of gate stirrers concerning a shaft creates additional turbulization of the environment, provides alignment of concentration of cells of biomass, prevents emergence of hold-up spots, a premature deposition of cages of culture on the bottom of the device and increases efficiency of cultivation of microalgas. In the main section suspension of a microalga is exposed to the uniform light energy by means of coaxially established filament lamp of a daylight and to reflection of light from an internal specular surface of a housing. In the course of irradiating the filament lamp distinguishes warmth which is compensated by supply of the cooling air the Main difference from other bioreactors the impeller mixer fixed to a shaft in the bottom of a housing, preventing stratifying of the biomass pulp leaving more heavy is obespechivashchy full circulation of cultural liquid in the bottom of the device as in the horizontal, and vertical planes, at minimum mechanical energy consumptions. This device allows to create additional turbulization of the environment, to provide the uniform aeration, decrease in a power consumption on supply of steam-and-gas mixture in a collector, to prevent formation of "stagnant" zones in the bottom of the device.

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Microalgae cultivation in a novel top-lit gas-lift open bioreactor

Cited by 36 publications

References 33 publications

Hydrodynamics and Mass Transfer in a Concentric Internal Jet-Loop Airlift Bioreactor Equipped with a Deflector

Hydrodynamics and Mass Transfer in a Concentric Internal Jet-Loop Airlift Bioreactor Equipped with a Deflector

Omega fatty acids production in an isolated native Chlorella sp. from northeast Mexico with improved growth using urine as nutritive medium

The bioreactor with use of impeller mixers for cultivation of biomass of microalgas

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