The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture
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...
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IMR Press
2023-01-01
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| Series: | Frontiers in Bioscience-Elite |
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| Online Access: | https://www.imrpress.com/journal/FBE/15/1/10.31083/j.fbe1501003 |
| _version_ | 1797861177818087424 |
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| author | Marcin Zieliński Joanna Kazimierowicz Marcin Dębowski |
| author_facet | Marcin Zieliński Joanna Kazimierowicz Marcin Dębowski |
| author_sort | Marcin Zieliński |
| collection | DOAJ |
| description | 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 dm3, and the gaseous phase occupied 0.3 dm3. 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/dm3⋅d, and produced a higher microalgae concentration, i.e., 780 ± 58 mgVS/dm3. 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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| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1945-0494 |
| language | English |
| last_indexed | 2024-04-09T21:59:03Z |
| publishDate | 2023-01-01 |
| publisher | IMR Press |
| record_format | Article |
| series | Frontiers in Bioscience-Elite |
| spelling | doaj.art-cc50ea268d6f4a58bd2056645b418c602023-03-24T03:03:42ZengIMR PressFrontiers in Bioscience-Elite1945-04942023-01-01151310.31083/j.fbe1501003S1945-0494(22)00095-9The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris CultureMarcin Zieliński0Joanna Kazimierowicz1Marcin Dębowski2Department of Environment Engineering, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-710 Olsztyn, PolandDepartment of Water Supply and Sewage Systems, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 15-351 Bialystok, PolandDepartment of Environment Engineering, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-710 Olsztyn, PolandBackground: 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 dm3, and the gaseous phase occupied 0.3 dm3. 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/dm3⋅d, and produced a higher microalgae concentration, i.e., 780 ± 58 mgVS/dm3. 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.https://www.imrpress.com/journal/FBE/15/1/10.31083/j.fbe1501003biogasflue gasescarbon dioxidemicroalgaebiomasschlorella vulgarisphotobioreactor |
| spellingShingle | Marcin Zieliński Joanna Kazimierowicz Marcin Dębowski The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture Frontiers in Bioscience-Elite biogas flue gases carbon dioxide microalgae biomass chlorella vulgaris photobioreactor |
| title | The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture |
| title_full | The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture |
| title_fullStr | The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture |
| title_full_unstemmed | The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture |
| title_short | The Possibility of Deploying CO2 from Biogas Combustion to Improve the Productivity of a Periodical Chlorella vulgaris Culture |
| title_sort | possibility of deploying co2 from biogas combustion to improve the productivity of a periodical chlorella vulgaris culture |
| topic | biogas flue gases carbon dioxide microalgae biomass chlorella vulgaris photobioreactor |
| url | https://www.imrpress.com/journal/FBE/15/1/10.31083/j.fbe1501003 |
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