Advances in the synthesis and applications of nanomaterials to increase CO2 biofixation in microalgal cultivation

Morais, Michele Greque de; Vargas, Bruna Pereira; Vaz, Bruna da Silva; Cardias, Bruna Barcelos; Costa, Jorge Alberto Vieira

doi:10.1007/s10098-021-02220-x

Cited by 6 publications

(6 citation statements)

References 77 publications

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“…Another study showed the impregnation of amine on zeolite improved CO 2 adsorption up to 4.44 mmol/g [75]. Therefore, besides the surface area and porosity of nanostructured adsorbents, their surface chemistry and the existence of specific functional groups can significantly influence their adsorption capacity for CO 2 [72,76].…”

Section: Nanoparticles For Co 2 Supplymentioning

confidence: 99%

“…Microalgae can fix and convert atmospheric CO 2 to oxygen and biomass through photosynthesis. By considering the role of CO 2 as a carbon source in green algae cultivation, the improvement of CO 2 biofixation can increase the algal productivity and atmospheric CO 2 mitigation [72].…”

Section: Nanoparticles For Co 2 Supplymentioning

confidence: 99%

“…Acidic pH decreases the activity of rubisco enzymes which will decrease the CO 2 biofixation efficiency and result in CO 2 loss. Nanostructured adsorbents can be used to adsorb CO 2 at an acidic pH value to retain the CO 2 gas in the culture and consequently enhance algal growth by controlling the availability of CO 2 in the culture medium through an adsorption/desorption cycle [72].…”

Section: Nanoparticles For Co 2 Supplymentioning

confidence: 99%

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Critical Review on Nanomaterials for Enhancing Bioconversion and Bioremediation of Agricultural Wastes and Wastewater

Salehi

Wang

2022

Energies

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Anaerobic digestion (AD), microalgae cultivation, and microbial fuel cells (MFCs) are the major biological processes to convert organic solid wastes and wastewater in the agricultural industry into biofuels, biopower, various biochemical and fertilizer products, and meanwhile, recycle water. Various nanomaterials including nano zero valent irons (nZVIs), metal oxide nanoparticles (NPs), carbon-based and multicompound nanomaterials have been studied to improve the economics and environmental sustainability of those biological processes by increasing their conversion efficiency and the quality of products, and minimizing the negative impacts of hazardous materials in the wastes. This review article presented the structures, functionalities and applications of various nanomaterials that have been studied to improve the performance of AD, microalgae cultivation, and MFCs for recycling and valorizing agricultural solid wastes and wastewater. The review also discussed the methods that have been studied to improve the performance of those nanomaterials for their applications in those biological processes.

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Section: Nanoparticles For Co 2 Supplymentioning

confidence: 99%

Section: Nanoparticles For Co 2 Supplymentioning

confidence: 99%

Section: Nanoparticles For Co 2 Supplymentioning

confidence: 99%

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Critical Review on Nanomaterials for Enhancing Bioconversion and Bioremediation of Agricultural Wastes and Wastewater

Salehi

Wang

2022

Energies

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“…The literature shows that the final technological effect associated with CO 2 biosequestration is generally influenced by two factors. During biosynthesis, CO 2 is utilised by the photosynthesising biomass and by its dissolution and absorption in the culture medium [66]. Considering that the culture medium had a hardness of 474 ± 14 mg CaCO 3 /L, the chemical absorption of CO 2 by calcium or magnesium ions could have a significant influence on the observed binding effects.…”

Section: Co 2 Biofixation and Ph Changesmentioning

confidence: 99%

The Use of the Autotrophic Culture of Arthrospira platensis for CO2 Fixation from Biogas Combustion

Dębowski,

Zieliński,

Vdovychenko

et al. 2024

Processes

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The increased concentration of CO2 in the atmosphere has a strong impact on global warming. Therefore, efficient technologies must be used to reduce CO2 emissions. One of the methods is the biofixation of CO2 by microalgae and cyanobacteria. This is now a widely described technology that can improve the economics of biomass production and reduce CO2 emissions. There are no reports on the possibility of using it to clean exhaust gases from biogas combustion. The aim of the research was to determine the possibility of using Arthrospira platensis cultures to remove CO2 from biogas combustion. The efficiency of biomass production and the effectiveness of biological CO2 fixation were evaluated. The use of exhaust gases led to a more efficient increase in cyanobacterial biomass. The growth rate in the exponential phase was 209 ± 17 mgVS/L·day, allowing a biomass concentration of 2040 ± 49 mgVS/L. However, the use of exhaust gases led to a decrease in the pH of the culture medium and a rapid decline in the Arthrospira platensis population. The cyanobacteria effectively fixed CO2, and its concentration was limited from 13 ± 1% to 1.3 ± 0.7%. There was no influence of the exhaust gases on changes in the qualitative composition of the cyanobacterial biomass. In the culture fed with exhaust gas, the A. platensis population quickly entered the death phase, which requires close monitoring. This is an important indication for potential operators of large-scale photobioreactors.

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“…Considering that CO 2 concentration in the exhaust gases was 13% ± 1.0%, the efficiency of CO 2 fixation in the technological system reached 0.05 mgCO 2 /min. This technological effect was influenced by two factors, namely: CO 2 assimilation by the growing microalgal biomass and its dissolution in the culture medium solution [29]. Given the high hardness of water used to prepare the culture medium, i.e., 490 ± 20 mg CaCO 3 /dm 3 , it had significant buffering properties and a significant capability for CO 2 fixation by calcium or magnesium ions.…”

Section: Changes In the Composition Of Gasesmentioning

confidence: 99%

The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture

Zieliński¹,

Kazimierowicz²,

Dębowski³

2023

Front. Biosci. (Elite Ed)

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Background: Carbon dioxide (CO2) is the major contributor to the global emissions of greenhouse gases, which necessitates the search for its fixation and utilization methods. Engaging photosynthesizing microorganisms for its biosequestration is one of the prospective technologies applied to this end. Considering the paucity of literature works on the possibilities of deploying CO2 from biogas combustion to intensify microalgae production, this research aimed to identify the feasibility of using this type of CO2 in Chlorella vulgaris culture by evaluating biomass production yield and CO2 biosequestration effectiveness. Methods: The experiment was performed in glass PBR, in which the culture medium occupied the volume of 1.0 dm 3 , and the gaseous phase occupied 0.3 dm 3 . The reactors were continuously illuminated by fluorescent lamps. The temperature of flue gases and air fed to reactors, and culture temperature was 20 °C ± 2 °C. Results: The use of flue gases promoted a more rapid biomass growth, reaching 77.8 ± 3.1 mgVS/dm 3 •d, and produced a higher microalgae concentration, i.e., 780 ± 58 mgVS/dm 3 . Nevertheless, the flue gas-fed culture turned out to be highly sensitive, which was manifested in a decreased culture medium pH and relatively quickly achieved decay phase of the C. vulgaris population. The microalgae effectively assimilated CO2, reducing its concentration from 13 ± 1% to 1 ± 0.5% in the effluent from the photobioreactor. Conclusions: The flue gases were found not to affect the qualitative composition of the microalgal biomass. However, strict control and monitoring of microalgae biomass production is necessary, as well as rapid responses in flue gas-fed systems. This is an important hint for potential operators of such technological systems on the large scale. Regardless of the possibility of deploying microalgae to fix and utilize CO2, a justified avenue of research is to look for cheap sources of CO2-rich gases.

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Advances in the synthesis and applications of nanomaterials to increase CO2 biofixation in microalgal cultivation

Cited by 6 publications

References 77 publications

Critical Review on Nanomaterials for Enhancing Bioconversion and Bioremediation of Agricultural Wastes and Wastewater

Critical Review on Nanomaterials for Enhancing Bioconversion and Bioremediation of Agricultural Wastes and Wastewater

The Use of the Autotrophic Culture of Arthrospira platensis for CO2 Fixation from Biogas Combustion

The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture

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