Biologically-mediated carbon capture and utilization by microalgae towards sustainable CO2 biofixation and biomass valorization – A review

Daneshvar, Ehsan; Wicker, Rebecca J.; Show, Pau-Loke; Bhatnagar, Amit

doi:10.1016/j.cej.2021.130884

Cited by 257 publications

(97 citation statements)

References 133 publications

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“…Low CO 2 fixation efficiency means loss of almost. One of the main reasons for low bio-fixation efficiency is the lower solubility of CO 2 in water (∼ 1.45 g/L) at normal conditions ( Daneshvar et al, 2022 ). The CO 2 solubility and uptake efficiency can be enhanced by controlling the bubble size, design of the photobioreactor, proper selection of microalgae strain, and selecting appropriate operating conditions, such as flow rate, the concentration of CO 2 , and pH ( Li et al, 2013 ).…”

Section: Resultsmentioning

confidence: 99%

“…Biological systems are more competent in utilizing CO 2 than chemical conversion techniques. Different natural processes, such as forestation and ocean fertilization, and microbes or microalgae fixed and used CO 2 ( Daneshvar et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers have investigated microalgae as an alternative approach for CO 2 capture and utilization. A recent detailed review on biobased CCU highlights the advantages and, most notably, the gaps in research and potential future research directions to improve the efficiency of the process, especially by integrating new innovative CO 2 capture technologies with microalgae cultivation ( Daneshvar et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

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Maximizing Energy Content and CO2 Bio-fixation Efficiency of an Indigenous Isolated Microalga Parachlorella kessleri HY-6 Through Nutrient Optimization and Water Recycling During Cultivation

Farooq

2022

Front. Bioeng. Biotechnol.

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An alternative source of energy and materials with low negative environmental impacts is essential for a sustainable future. Microalgae is a promising candidate in this aspect. The focus of this study is to optimize the supply of nitrogen and carbon dioxide during the cultivation of locally isolated strain Parachlorella kessleri HY-6. This study focuses on optimizing nitrogen and CO2 supply based on total biomass and biomass per unit amount of nitrogen and CO2. Total biomass increased from 1.23 to 2.30 g/L with an increase in nitrogen concentration from 15.8 to 47.4 mg/L. However, biomass per unit amount of nitrogen supplied was higher at low nitrogen content. Biomass and CO2 fixation rate increased at higher CO2 concentrations in bubbling air, but CO2 fixation efficiency decreased drastically. Finally, the energy content of biomass increased with increases in both nitrogen and CO2 supply. This work thoroughly analyzed the biomass composition via ultimate, proximate, and biochemical analysis. Water is recycled three times for cultivation at three different nitrogen levels. Microalgae biomass increased during the second recycling and then decreased drastically during the third. Activated carbon helped remove the organics after the third recycling to improve the water recyclability. This study highlights the importance of selecting appropriate variables for optimization by considering net energy investment in terms of nutrients (as nitrogen) and CO2 fixation efficiency and effective water recycling.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Maximizing Energy Content and CO2 Bio-fixation Efficiency of an Indigenous Isolated Microalga Parachlorella kessleri HY-6 Through Nutrient Optimization and Water Recycling During Cultivation

Farooq

2022

Front. Bioeng. Biotechnol.

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“…The increase in CO 2 generation is bound to further increase as a result of the economic growth and urbanization [1]. As CO 2 is the most abundantly emitted greenhouse gas responsible for most of the radiative forcing of global warming [2,3]. CO 2 removal and recycle are a major challenge to reduce emissions by 2030 as a global collective goal to limit the global warming to an increase of 1.5 • C [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…In addition to substitution of fossil fuels with renewable energies, several capture and storage technologies (CCS) such as adsorption, membrane separation, and geological storage are being developed to mitigate CO 2 emissions [6]. On the other hand, technologies that allowed the CO 2 capture and conversion into valuable products has been named carbon capture and utilization chain (CCU) [2]. In this context, biological CCU approaches, which allows for the CO 2 fixation in liquid [7], solid [8], gaseous [9] fuels represent an effective strategy towards a sustainable zero-emission economy.…”

Section: Introductionmentioning

confidence: 99%

Autotrophic Acetate Production under Hydrogenophilic and Bioelectrochemical Conditions with a Thermally Treated Mixed Culture

et al. 2022

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Bioelectrochemical systems are emerging technologies for the reduction in CO2 in fuels and chemicals, in which anaerobic chemoautotrophic microorganisms such as methanogens and acetogens are typically used as biocatalysts. The anaerobic digestion digestate represents an abundant source of methanogens and acetogens microorganisms. In a mixed culture environment, methanogen’s inhibition is necessary to avoid acetate consumption by the presence of acetoclastic methanogens. In this study, a methanogenesis inhibition approach based on the thermal treatment of mixed cultures was adopted and evaluated in terms of acetate production under different tests consisting of hydrogenophilic and bioelectrochemical experiments. Batch experiments were carried out under hydrogenophilic and bioelectrochemical conditions, demonstrating the effectiveness of the thermal treatment and showing a 30 times higher acetate production with respect to the raw anaerobic digestate. Moreover, a continuous flow bioelectrochemical reactor equipped with an anion exchange membrane (AEM) successfully overcomes the methanogens reactivation, allowing for a continuous acetate production. The AEM membrane guaranteed the migration of the acetate from the biological compartment and its concentration in the abiotic chamber avoiding its consumption by acetoclastic methanogenesis. The system allowed an acetate concentration of 1745 ± 30 mg/L in the abiotic chamber, nearly five times the concentration measured in the cathodic chamber.

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Treatment of Swine Wastewater Using Microalgae

Silva‐Gálvez,

Palafox‐Sola,

González‐López

et al. 2024

Algae Mediated Bioremediation

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Biologically-mediated carbon capture and utilization by microalgae towards sustainable CO2 biofixation and biomass valorization – A review

Cited by 257 publications

References 133 publications

Maximizing Energy Content and CO2 Bio-fixation Efficiency of an Indigenous Isolated Microalga Parachlorella kessleri HY-6 Through Nutrient Optimization and Water Recycling During Cultivation

Maximizing Energy Content and CO2 Bio-fixation Efficiency of an Indigenous Isolated Microalga Parachlorella kessleri HY-6 Through Nutrient Optimization and Water Recycling During Cultivation

Autotrophic Acetate Production under Hydrogenophilic and Bioelectrochemical Conditions with a Thermally Treated Mixed Culture

Treatment of Swine Wastewater Using Microalgae

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