Investigation of growth limitation by CO2 mass transfer and inorganic carbon source for the microalga Chlorella vulgaris in a dedicated photobioreactor

Gouic, Benjamin Le; Marec, H.; Pruvost, Jérémy; Cornet, J.F.

doi:10.1016/j.ces.2020.116388

Cited by 27 publications

(39 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Data used to adjust the model were obtained in continuous mode, with constant pH and temperature controlled at 7.5 and 25 °C, respectively. Chlorella vulgaris was cultivated in an autotrophic medium based on the Sueoka medium …”

Section: Methodsmentioning

confidence: 99%

“…However, maximal growth does not guarantee an optimal use of the CO 2 . Such optimization is however relevant (i) to decrease, for example, the operating cost of a commercial application (the cost related to carbon supply being afford for around 20–40% of the operating cost in some cases; see ref ) or (ii) to decrease CO 2 re-emitted in the outlet gaseous phase in the perspective of using photosynthetic microorganisms as a way to valorize flue gas through microalgal biomass various applications. ,, The carbon fate in the process, such as the carbon absorption/desorption phenomena that occur in culture systems, is of interest here …”

Section: Introductionmentioning

confidence: 99%

“…In a previous work, the authors have presented an experimental setup for the detailed investigation of the effects of carbon limitation of the photosynthetic microalgae growth . This allowed measuring various carbon fluxes involved during cultivation of the microalga Chlorella vulgaris.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Kinetic Modeling of CO₂ Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Pruvost

Gouic

Cornet

2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Photosynthetic microorganisms like microalgae or cyanobacteria can be used to fix CO 2 from industrial effluents in a sustainable way. However, the gaseous CO 2 must be first transferred into the liquid phase in the form of dissolved inorganic carbon (DIC) to then be assimilated and thus biofixed by microalgae. This article introduces and validates a model able to relate effects of those parameters on relevant quantities, such as CO 2 biofixation rates and CO 2 use efficiency as characterized by CO 2 removal from the gas phase. The ability to predict carbon fluxes in the process as a function of operating parameters is first illustrated for lab-scale photobioreactors, emphasizing the difficulty to optimize both CO 2 biofixation rates (which implies maximizing biomass growth) and CO 2 removal from the gas phase (which implies working at low DIC concentrations). As two technologies presenting different gas− liquid mass transfer performances, mechanically stirred versus airlift systems are then discussed. Covered raceways are revealed to be of interest, reaching up to 80% in CO 2 use efficiency, while the large flow rate needed for sufficient mixing in airlift systems facilitates the CO 2 supply to the culture to the detriment of CO 2 use efficiency, typically only a few percent in usual operating conditions. Finally, the potential of a multistage strategy is investigated for a typical CO 2 -enriched flue gas. The relevance of biological fixation as a carbon sink and of system arrangement (i.e., series, parallel, or in combination) will be discussed in terms of biomass production, surface requirement, and carbon removal efficiency.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Kinetic Modeling of CO₂ Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Pruvost

Gouic

Cornet

2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Inorganic carbon concentration was measured on some samples to check that the dissolved carbon concentration was not in a limiting concentration (i.e., inferior to 5 mM (Le Gouic et al 2021)). For that purpose, 15 mL of culture was centrifuged at 4150 g (Hettich Mikro 22R, Germany) for 10 min.…”

Section: Inorganic Carbon Concentrationmentioning

confidence: 99%

Investigation of the photosynthetic response of Chlorella vulgaris to light changes in a torus-shape photobioreactor

Bonnanfant

Marec

Jesus

et al. 2021

Appl Microbiol Biotechnol

Self Cite

View full text Add to dashboard Cite

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

“…Inasmuch as irradiance can be defective or excessive, both being deleterious, an insufficient CO 2 supply reduces the potential productivity as that of any other essential nutrient. When CO 2 is fixed, it is consumed at the theoretical rate of 1.83 kg per kg of new dry biomass, but more will be required in practice to account for losses, open cultures departing most from the previous figure because of dispersion effects [10]. When inorganic carbon is supplied as CO 2 , waste oxygen will be eliminated through the same route at a comparatively similar efficiency.…”

Section: Introductionmentioning

confidence: 99%

Mass Transfer Features of Wavy-Bottomed Cascade Photobioreactors

Moroni

Sed

Cicci³

et al. 2021

ChemEngineering

View full text Add to dashboard Cite

It has been suggested that the energy-efficient production of microalgae biomass can be more easily obtained in short light path photobioreactors that can be operated at high biomass concentration. On the downside, however, high biomass concentrations also require an efficient gas exchange rate to avoid metabolic growth limitation or inhibition. A cascade photobioreactor featuring a thin liquid layer flowing down a sloping, wavy-bottomed surface can be operated at a biomass concentration that is much higher compared to most usual open-type equipment. Liquid flow, upon investigation, proved to exhibit peculiar “local recirculation” hydrodynamics, potentially conducive to the mixing of superficial and deep zones of the photobioreactor. Mass transfer coefficient represents a useful parameter to optimize the performance of a microalgal photobioreactor and its scale-up. The aim of the present article is to discuss the experimental mass transfer features of this novel type of photobioreactor and highlight expected opportunities and issues entailed by different ways of installing and operating such novel types of photobioreactors.

show abstract

Investigation of growth limitation by CO2 mass transfer and inorganic carbon source for the microalga Chlorella vulgaris in a dedicated photobioreactor

Cited by 27 publications

References 34 publications

Kinetic Modeling of CO₂ Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Kinetic Modeling of CO₂ Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Investigation of the photosynthetic response of Chlorella vulgaris to light changes in a torus-shape photobioreactor

Mass Transfer Features of Wavy-Bottomed Cascade Photobioreactors

Contact Info

Product

Resources

About

Investigation of growth limitation by CO2 mass transfer and inorganic carbon source for the microalga Chlorella vulgaris in a dedicated photobioreactor

Cited by 27 publications

References 34 publications

Kinetic Modeling of CO2 Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Kinetic Modeling of CO2 Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Investigation of the photosynthetic response of Chlorella vulgaris to light changes in a torus-shape photobioreactor

Mass Transfer Features of Wavy-Bottomed Cascade Photobioreactors

Contact Info

Product

Resources

About

Kinetic Modeling of CO₂ Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies

Kinetic Modeling of CO₂ Biofixation by Microalgae and Optimization of Carbon Supply in Various Photobioreactor Technologies