Effect of CO 2 aeration on cultivation of microalgae in luminescent photobioreactors

Mohsenpour, Seyedeh Fatemeh; Willoughby, Nicholas

doi:10.1016/j.biombioe.2015.12.002

Cited by 69 publications

(18 citation statements)

References 34 publications

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“…The pH of the algae culture is related to the solubility and availability of carbon dioxide in the photobioreactor (Mohsenpour and Willoughby, 2016). Bicarbonate is the determining factor in the photosynthesis of microalgae.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, microalgae cultivation under limitation in carbon dioxide usually restricts growth (de Godos et al, 2014;Yen et al, 2015). There are some parameters for optimization of CO 2 biofixation depending on the species of microalgae, such as the nutrient availability, light intensity, temperature, pH, sufficiently high surface area to volume ratio (height to diameter ratio), and countercurrent flow of gas and liquid at optimal flow rates (Cheng et al, 2013;Di Iaconi et al, 2006;Jacob-Lopes et al, 2008;Janssen et al, 2003;Mohsenpour and Willoughby, 2016). Among microalgae species, Chlorella species are considered as a suitable choice for carbon dioxide fixation.…”

Section: Introductionmentioning

confidence: 99%

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CARBON DIOXIDE BIOFIXATION BY Chlorella sp. IN A BUBBLE COLUMN REACTOR AT DIFFERENT FLOW RATES AND CO2 CONCENTRATIONS

Pourjamshidian

Abolghasemi

Esmaili

et al. 2019

Braz. J. Chem. Eng.

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CO 2 biofixation of the microalgae Chlorella sp. for different CO 2 concentrations and gas flow rates in a bubble column reactor has been investigated in this study. Microalgae were cultivated under different CO 2 concentrations (at 1.75% and 9.45% v/v) and gas flow rates (at 30, 50 and 70 ml/min). The maximum specific growth rate of Chlorella sp. was obtained for the CO 2 concentration of 1.75 % and the gas flow rate of 50 mL/min. The highest biomass productivity rate (at 0.17 g L-1 day-1) was for a sample with 1.75 % CO 2 at a flow rate of 70 ml/min. Moreover, the results have shown that the specific growth rate and CO 2 biofixation have a direct relation with culturing of Chlorella sp. Also, limiting CO 2 supplementation noticeably decreased biomass concentration. Therefore, the results have shown that a high flow rate and low concentration of CO 2 might promote a decrease in CO 2 fixation efficiency by Chlorella sp.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CARBON DIOXIDE BIOFIXATION BY Chlorella sp. IN A BUBBLE COLUMN REACTOR AT DIFFERENT FLOW RATES AND CO2 CONCENTRATIONS

Pourjamshidian

Abolghasemi

Esmaili

et al. 2019

Braz. J. Chem. Eng.

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“…Studies using monochromatic illumination indicate that light quality can improve cellular growth and lipid content at the same time [16,17]. However, the optimal wavelength seems to depend on the species and other factors [18][19][20][21][22][23][24][25][26]. Moreover, it is difficult to scale-up laboratory experiments that use monochromatic light from light emitting diodes (LEDs), because of cost considerations.…”

Section: Introductionmentioning

confidence: 99%

Use of tar color additives as a light filter to enhance growth and lipid production by the microalga Nannochloropsis gaditana

Shin

Jung

Cho

et al. 2018

Environmental Engineering Research

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The spectral composition of light can affect the growth and biochemical composition of photosynthetic microalgae. This study examined the use of light filtering through a solution of soluble colored additives, a cost-effective method to alter the light spectrum, on the growth and lipid production of an oleaginous microalga, Nannochloropsis gaditana (N. gaditana). Cells were photoautotrophically cultivated under a white light emitting diode (LED) alone (control) or under a white LED that passed through a solution of red and yellow color additive (4:1 ratio) that blocked light below 600 nm. The specific growth rate was significantly greater under filtered light than white light (0.2672 d-1 vs. 0.1930 d-1). Growth under filtered light also increased the fatty acid methyl ester (FAME) yield by 22.4% and FAME productivity by 80.0%, relative to the white light control. In addition, the content of saturated fatty acids was greater under filtered light, so the biodiesel products had better stability. These results show that passing white light through an inexpensive color filter can simultaneously enhance cellular growth and lipid productivity of N. gaditana. This approach of optimizing the light spectrum may be applicable to other species of microalgae.

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“…In Table 1, although the growth rate parameters including r p , µ max and x under the white LED light were higher relative to the other lighting conditions, these differences compared to the red light were insignificant. Mohsenpour and Willoughby ( 42 ) showed that higher growth rate of Chlorella vulgaris biomass was achieved under the corrected red light. Moreover, the high biomass productivity rate was under the red and control (white light) conditions, which is in accordance with this study.…”

Section: Resultsmentioning

confidence: 99%

Performance Assessment of a Novel Pyramid Photobioreactor for Cultivation of Microalgae Using External and Internal Light Sources

Khoobkar

Shariati

Safekordi

et al. 2019

Food technol. biotechnol. (Online)

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The cultivation of Chlorella sp., the most abundant microalga in the Persian Gulf, took place in a novel pyramid photobioreactor (PBR), a modified version of plate PBR, consisting of four completely separate equal-volume chambers. In this study we used two light sources incident in each chamber: light-emitting diode (LED) at various wavelengths (red, white and blue) of 108 µmol/(m2·s) photosynthetic photon flux density as internal lighting, and the same photon flux density for external white lighting. PBR served to study the effects of light sources on chlorophyll a production, maximum specific growth rate (µmax), biomass productivity rate (rp) and photon performance. The results showed that the highest chlorophyll a production was obtained under red LED illumination. The highest values for rp, µmax and photon performance were obtained under white light.

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Effect of CO 2 aeration on cultivation of microalgae in luminescent photobioreactors

Cited by 69 publications

References 34 publications

CARBON DIOXIDE BIOFIXATION BY Chlorella sp. IN A BUBBLE COLUMN REACTOR AT DIFFERENT FLOW RATES AND CO2 CONCENTRATIONS

CARBON DIOXIDE BIOFIXATION BY Chlorella sp. IN A BUBBLE COLUMN REACTOR AT DIFFERENT FLOW RATES AND CO2 CONCENTRATIONS

Use of tar color additives as a light filter to enhance growth and lipid production by the microalga Nannochloropsis gaditana

Performance Assessment of a Novel Pyramid Photobioreactor for Cultivation of Microalgae Using External and Internal Light Sources

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