Microalgae Culture Medium Recycling: Improved Production of Biomass and Lipids, Biodiesel Properties and Cost Reduction

Dzuman, Maria Judite; Severo, Ihana Aguiar; Moreira, Michelle Aparecida Coelho; Luz, Luiz Fernando de Lima; Mitchell, David A.; Vargas, J.V.C.; Mariano, André Bellin

doi:10.1007/s12155-022-10395-4

Cited by 10 publications

(3 citation statements)

References 49 publications

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“…was found to be 23% and 13% higher in the first and second reuse cycles, respectively, indicating that recycled media exerted greater nutrient stress than fresh media [20]. Similar results were observed in Tetradesmus obliquus and Chlorella zofingiensis, where higher lipid content was recorded in recycled media than in fresh media [42,57]. Interestingly, the fatty acid profile of Aurantiochytrium sp.…”

Section: Effect Of Media Recycling On Algal Growth and Biochemical Co...supporting

confidence: 68%

“…Tetradesmus obliquus was also subjected to media recycling, where the cultivation media were separated from the biomass by gravity sedimentation at 4 • C, and 50% spent media were used in each new cycle (Table 1). No negative effects were reported, which can be attributed to successful adaptation of the cells to the spent media environment [57].…”

Section: Effect Of Media Recycling On Algal Growth and Biochemical Co...mentioning

confidence: 98%

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A Critical Review of Growth Media Recycling to Enhance the Economics and Sustainability of Algae Cultivation

Arora,

Lo,

Legall

et al. 2023

Energies

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Microalgae hold promise as a sustainable source of biofuels and bioproducts but their commercial development is impeded by high cultivation costs, primarily for growth nutrients, and concerns about the water-intensive nature of algae cultivation. As a result, minimizing water and nutrient input is imperative to reducing algal operating costs, while enhancing the sustainability of future algal biorefineries. However, spent media recycling often results in the accumulation of growth inhibitors, such as free fatty acids, polysaccharides, polyunsaturated aldehydes, and humic acid, which negatively affect algal growth and productivity. In this review, we critically assess media recycling research findings to assess the advantages and disadvantages of spent media reuse for a wide range of algae strains. Particular emphasis is placed on strategies to overcome growth inhibition through spent media treatment processes, such as ultraviolet oxidation, activated carbon, ultrasonication, microfiltration, crop rotation, and nutrient replenishment.

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Section: Effect Of Media Recycling On Algal Growth and Biochemical Co...supporting

confidence: 68%

Section: Effect Of Media Recycling On Algal Growth and Biochemical Co...mentioning

confidence: 98%

A Critical Review of Growth Media Recycling to Enhance the Economics and Sustainability of Algae Cultivation

Arora,

Lo,

Legall

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…Several microalgae species respond quickly to stimuli when subjected to environmental stresses, producing abundant compounds such as lipids, carbohydrates, and proteins, in addition to other metabolites [10]. For example, microalgae synthesize and accumulate fatty acids, which are promising for the production of hydrocarbons, and could be a new matrix for biofuels and chemicals [11].…”

Section: Introductionmentioning

confidence: 99%

Airlift Photobioreactor for Microalgae Growth from Emissions: Mathematical Modeling and Simulation

et al. 2023

Self Cite

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A mathematical model is proposed to describe and simulate microalgae growth from emissions in an outdoor airlift photobioreactor. To this end, the influences of the concentration of total nitrogen, total phosphorus, CO2 present in the exhaust gases, temperature, and light intensity were considered in biomass production. The model was tested under different experimental conditions with biomass concentrations ranging from 2 g L−1 to 4.5 g L−1. Furthermore, the accuracy of the airlift photobioreactor simulations was greater than 90 %. Thus, the developed model was able to satisfactorily describe the experimental data, so that it can be applied in other microalgae systems for optimizing biomass production, both on laboratory and pilot scales.

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Immobilized Microalgae‐Based Processes: Is It a Viable Pathway for Wastewater Treatment?

Severo,

Azevedo,

Martinez‐Burgos

et al. 2024

Algae Mediated Bioremediation

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Microalgae Culture Medium Recycling: Improved Production of Biomass and Lipids, Biodiesel Properties and Cost Reduction

Cited by 10 publications

References 49 publications

A Critical Review of Growth Media Recycling to Enhance the Economics and Sustainability of Algae Cultivation

A Critical Review of Growth Media Recycling to Enhance the Economics and Sustainability of Algae Cultivation

Airlift Photobioreactor for Microalgae Growth from Emissions: Mathematical Modeling and Simulation

Immobilized Microalgae‐Based Processes: Is It a Viable Pathway for Wastewater Treatment?

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