Investigation and modeling of the effects of light spectrum and incident angle on the growth of <i><scp>C</scp>hlorella vulgaris</i> in photobioreactors

Souliès, Antoine; Legrand, Jack; Marec, H.; Pruvost, Jérémy; Castelain, Cathy; Burghelea, Teodor; Cornet, Jean‐François

doi:10.1002/btpr.2244

Cited by 40 publications

(72 citation statements)

References 42 publications

(71 reference statements)

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“…It contains in (g/l): [20]. Nutrient concentrations were adjusted to avoid mineral limitation and guarantee that growth was only light-limited [17].…”

Section: Selected Strainmentioning

confidence: 99%

“…If necessary, more intense gas bubbling could obviously be applied, so as to increase the gas-liquid mass transfer rate. Because of the accurate control of culture conditions, the torus PBR has been widely used in recent years for in-depth studies and kinetic model setting, including for the optimization of microalgal biomass productivity [17,18] and the investigation of light/dark cycles effect on microalgal growth [22]. Here we extend its use to investigate the effect of C O₂ on microalgal growth.…”

Section: Cultivation Systemmentioning

confidence: 99%

“…The torus and airlift PBRs were exposed to PFD = 250 μmol/m 2 /s via LED panels designed to produce homogeneous white light [17]. C O₂ was modulated by bubbling gaseous nitrogen (N 2 ) at a given flowrate regulated by a Bronkhorst HIGH-TECH flowmeter (Bronkhorst, France).…”

Section: Cultivation Systemmentioning

confidence: 99%

“…Mathematical modeling is useful in that regard to optimize and scale microalgal culture systems. Co-authors developed for that purpose a knowledge model for predicting the biomass productivity of light-limited microalgae cultures in PBRs [16][17][18]. The knowledge model combines radiative transfer and photosynthetic growth models.…”

Section: Introductionmentioning

confidence: 99%

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Effect of dissolved oxygen concentration on microalgal culture in photobioreactors

et al. 2019

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High concentrations of dissolved oxygen can inhibit the growth of photosynthetic microorganisms in microalgal culture systems. Not taking into account this parameter can also affect the reliability of mathematical models predicting biomass productivity. This study investigates the impact of high dissolved oxygen concentrations (C O₂) on biomass productivity. The eukaryotic microalgae Chlorella vulgaris was cultivated in a torus-shaped photobioreactor in chemostat mode at constant light and for different C O₂. Results showed a loss of biomass productivity at C O₂ ≥ 31 g•m −3. By recalculating the specific rate of cofactor regeneration on the respiratory chain (J NADH 2), the kinetic growth model was able to predict the impact of C O₂. This improved model was then used to explain the discrepancy in performances between two photobioreactor geometries, highlighting the utility of regulating gas-liquid mass transfer via aeration for better optimization of photobioreactor performances.

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“…It contains in (g/l): [20]. Nutrient concentrations were adjusted to avoid mineral limitation and guarantee that growth was only light-limited [17].…”

Section: Selected Strainmentioning

confidence: 99%

Section: Cultivation Systemmentioning

confidence: 99%

Section: Cultivation Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of dissolved oxygen concentration on microalgal culture in photobioreactors

et al. 2019

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“…In another study, various illumination conditions with LED lights were evaluated for their influence on C. vulgaris grwoth in PBRs. In this study, the authors develop a model that allows for features affecting PBR productivity (i.e., light spectra and oblique incident angle) to be predicted . The development of accurate predictive models can streamline the scaling‐up process, decreasing the number of variables that would otherwise be evaluated without the model.…”

Section: Large‐scale Cultivation Systems For Microalgae and Cyanobactmentioning

confidence: 99%

Photobioreactor cultivation strategies for microalgae and cyanobacteria

Johnson

Katuwal

Anderson

et al. 2018

Biotechnology Progress

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The current burden on fossil-derived chemicals and fuels combined with the rapidly increasing global population has led to a crucial need to develop renewable and sustainable sources of chemicals and biofuels. Photoautotrophic microorganisms, including cyanobacteria and microalgae, have garnered a great deal of attention for their capability to produce these chemicals from carbon dioxide, mineralized water, and solar energy. While there have been substantial amounts of research directed at scaling-up production from these microorganisms, several factors have proven difficult to overcome, including high costs associated with cultivation, photobioreactor construction, and artificial lighting. Decreasing these costs will substantially increase the economic feasibility of these production processes. Thus, the purpose of this review is to describe various photobioreactor designs, and then provide an overview on lighting systems, mixing, gas transfer, and the hydrodynamics of bubbles. These factors must be considered when the goal of a production process is economic feasibility. Targets for improving microalgae and cyanobacteria cultivation media, including water reduction strategies will also be described. As fossil fuel reserves continue to be depleted and the world population continues to increase, it is imperative that renewable chemical and biofuel production processes be developed toward becoming economically feasible. Thus, it is essential that future research is directed toward improving these processes. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:811-827, 2018.

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Biogas purification via optimal microalgae growth: A literature review

Cea-Barcia

López‐Caamal

Zúñiga

et al. 2018

Biotechnology Progress

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In this review, we compare works from the current decade that address the CO2‐removal from biogas by means of microalgae. The microalgae culture process acts as a biochemical absorption process; it is potentially competitive with respect to classical and commercial absorption methods due to its additional benefits such as availing CO2 for the production of valuable microalgae biomass and being an environmentally friendly technique. Nevertheless, the low yield of biogas purification translates into the need to use optimal operation strategies that render the whole biogas production process economically feasible. A class of these strategies requires models capable of reproducing key traits of the dynamical behavior of microalgae growth. Thus, without overlooking the classical physico‐chemical methods for biogas purification, our literature review addresses: (i) biogas purification via microalgae and different microalgae growth conditions, (ii) approaches that maximize microalgae growth, in order to increase CO2‐consumption, and (iii) different models that describe the representative characteristics of microalgae growth. This investigation traces a pathway to future considerations on optimal biogas purification alternatives by microalgae culture processes. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1513–1532, 2018

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Investigation and modeling of the effects of light spectrum and incident angle on the growth of Chlorella vulgaris in photobioreactors

Cited by 40 publications

References 42 publications

Effect of dissolved oxygen concentration on microalgal culture in photobioreactors

Effect of dissolved oxygen concentration on microalgal culture in photobioreactors

Photobioreactor cultivation strategies for microalgae and cyanobacteria

Biogas purification via optimal microalgae growth: A literature review

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