A review on performance of sustainable microalgae photobioreactor façades technology: exploring challenges and advantages

Talaei, Maryam; Prieto, Alejandro

doi:10.1080/00038628.2024.2305889

Cited by 3 publications

(3 citation statements)

References 123 publications

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“…Low biomass productivity and high biomass harvesting costs are the main constraints of phototrophic cultivation. Mixotrophic and heterotrophic cultivations have frequently been applied in large-scale biomass production to improve bioprocess effectiveness and decrease production costs [9]. The ability to grow under mixotrophic and heterotrophic conditions is one of the major advantages of Chlorella strains [1,16].…”

Section: Effect Of C:n Ratio On Growth and Lipid Production Under Mix...mentioning

confidence: 99%

“…Compared to phototrophic cultivation, growth on organic carbon provides higher specific growth rates, biomass, product yields, and productivity. Mixotrophic growth combines the advantages of heterotrophic and phototrophic growth, increasing productivity due to the heterotrophic metabolism and CO2 sequestration during photosynthesis, resulting, most often, in a higher biomass yield compared to other tropic modes of cultivation [8,9]. Very often, biomass and lipid yield obtained under mixotrophic growth conditions exceeds the sum of that obtained under heterotrophic and phototrophic growth conditions, indicating favourable effects of mixotrophic cultivation on microalgal growth [9].…”

Section: Introductionmentioning

confidence: 99%

“…Phototrophic cultivation suffers from several issues, including low biomass productivity, risk of contamination, management of CO2, technical barriers in constructing photobioreactors, and high construction costs. Cultivation of microalgae using organic carbon under heterotrophic or mixotrophic conditions enhances the yield and productivity of biomass [9]. However, growth on organic carbon is limited to a few microalgae strains belonging to the major classes, including Chlorophyceae (green microalgae; Chlorella vulgaris, Chlorella zofigiensis, Chlamydomons sp., Dunaliella salina, Nannochloropsis gaditana, and Botryococcus braunii), Bacillariophyceae (including diatoms; Phaeodactylum tricornutum, Skeletonema costatum, Navicula saprophila, and Nitzschia sp.…”

Section: Introductionmentioning

confidence: 99%

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Cultivation of a Novel Strain of Chlorella vulgaris S2 under Phototrophic, Mixotrophic, and Heterotrophic Conditions, and Effects on Biomass Growth and Composition

Grubišić,

Peremin,

Djedović

et al. 2024

Fermentation

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Microalgal biomass is an excellent platform for producing food, feed, nutraceuticals, pharmaceuticals, and biofuels. This study aimed to investigate the effect of the trophic mode of cultivation (phototrophic, heterotrophic, and mixotrophic) on the growth and biomass composition of Chlorella vulgaris S2. The contents of lipids and carbohydrates, as well as the fatty acid composition of total lipids, were studied. The effects of the carbon-to-nitrogen ratio (C:N) and the organic carbon concentration of the growth media under mixotrophic and heterotrophic conditions were also investigated. The C:N ratio of 30 mol mol−1 favoured lipid synthesis, and the C:N ratio of 10 mol mol−1 favoured carbohydrate synthesis. Maximal lipid and biomass productivities (2.238 and 0.458 g L−1 d−1, respectively) were obtained under mixotrophic conditions at the C:N ratio of 50 mol mol−1 and glucose concentration of 50 g L−1. Fed-batch cultivation conducted in a stirrer tank bioreactor under heterotrophic growth conditions increased biomass (2.385 g L−1 d−1, respectively) and lipid (0.339 L−1 d−1) productivities ~50 and ~60 times compared to the fed-batch phototrophic cultivation, respectively. The trophic mode, growth phase, and growth medium composition significantly influenced the fatty acid composition. Under mixotrophic and heterotrophic growth conditions, lipid accumulation is associated with an increase in oleic acid (C18:1) content. Mixotrophically grown biomass of Chlorella vulgaris S2 under optimised conditions is a suitable source of lipids for biodiesel production.

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Section: Effect Of C:n Ratio On Growth and Lipid Production Under Mix...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cultivation of a Novel Strain of Chlorella vulgaris S2 under Phototrophic, Mixotrophic, and Heterotrophic Conditions, and Effects on Biomass Growth and Composition

Grubišić,

Peremin,

Djedović

et al. 2024

Fermentation

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Managing carbon dioxide mass transfer in photobioreactors for enhancing microalgal biomass productivity

Hajinajaf,

Fallahi,

Eustance

et al. 2024

Algal Research

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An optimization of thermal, visual and energy indicators for retrofit with photobioreactors in the mediterranean climate

Yaman,

Tokuç

2024

E3S Web Conf.

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There is a need for innovative products that cause fewer carbon emissions in the construction industry. Photobioreactor (PBR) façade elements can produce microalgae for biomass, food, or raw materials for various industries. The harvested algae also catch carbon during growth. Its use as a façade element affects the thermal and visual comfort of occupants and the energy consumption of the integrated building. However, very few built examples and physical model development are in progress. This paper deals with integrating PBR to retrofit the south façade for an office building in the Mediterranean climate. It uses multi-criteria optimization simulations to increase occupants’ thermal comfort while decreasing total energy consumption and increasing visual comfort. Pareto-optimal results show the effects of various design variables, including PBR properties, heating and cooling setpoints, wall and insulation material and thickness, and window-to-wall ratio (WWR). The results show that alternative retrofit options are better than the existing building for all optimization targets. The heating and cooling setpoints are the most effective design parameters in determining energy consumption, while PBR properties affected the thermal and visual comfort the most. In conclusion, more research is necessary to realize PBR retrofits now, but preliminary results show promise.

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A review on performance of sustainable microalgae photobioreactor façades technology: exploring challenges and advantages

Cited by 3 publications

References 123 publications

Cultivation of a Novel Strain of Chlorella vulgaris S2 under Phototrophic, Mixotrophic, and Heterotrophic Conditions, and Effects on Biomass Growth and Composition

Cultivation of a Novel Strain of Chlorella vulgaris S2 under Phototrophic, Mixotrophic, and Heterotrophic Conditions, and Effects on Biomass Growth and Composition

Managing carbon dioxide mass transfer in photobioreactors for enhancing microalgal biomass productivity

An optimization of thermal, visual and energy indicators for retrofit with photobioreactors in the mediterranean climate

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