A Perspective on Sustainable Ecology in the Light of the Qur'an

ARICI, Handan YALVAÇ; AK, Hacer

doi:10.26466/opusjsr.1093375

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…This process entails many dynamic and dangerous atmospheric phenomena, leads to an imbalance in ecosystems and has a negative impact on human health, agriculture and the economy [1]. It has been proven that the main cause of the greenhouse effect is the rapidly increasing concentrations of carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O) in the air [2,3].…”

Section: Introductionmentioning

confidence: 99%

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

Dębowski,

Zieliński,

Vdovychenko

et al. 2024

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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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Section: Introductionmentioning

confidence: 99%

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

Dębowski,

Zieliński,

Vdovychenko

et al. 2024

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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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A Perspective on Sustainable Ecology in the Light of the Qur'an

Cited by 2 publications

References 12 publications

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

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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