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Development of dual strain microalgae cultivation system for the direct carbon dioxide utilization of power plant flue gas.
- Source :
-
Bioresource technology [Bioresour Technol] 2024 Feb; Vol. 393, pp. 130051. Date of Electronic Publication: 2023 Nov 22. - Publication Year :
- 2024
-
Abstract
- This study aims to propose a biological system that allows for direct utilization of flue gas for carbon dioxide capture and utilization by microalgae. The strain Chlorella sp. ABC-001 is employed for its high growth rate as well as lipid and carbohydrate content. Toxicity tests showed that cell growth was unaffected by NO, but the presence of SO <subscript>2</subscript> showed critical damage on cell growth. Hence, an extremophile alga, Galdieria sulphuraria 5587.1 was applied to build a dual-strain cultivation system to mitigate the effect of SO <subscript>2</subscript> toxicity and increase CO <subscript>2</subscript> capture efficiency. All SO <subscript>2</subscript> was removed by Galdieria culture and the system exhibited stable growth from a simulated flue gas stream containing CO <subscript>2</subscript> , NO and SO <subscript>2</subscript> . Combined CO <subscript>2</subscript> biofixation rate of 793 mg/L/d and lipid productivity of 113 mg/L/d was achieved. The results showed that this new cultivation system is a promising alternative for reducing CO <subscript>2</subscript> emissions from power plants.<br />Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Subjects :
- Carbon Dioxide
Lipids
Power Plants
Biomass
Microalgae
Chlorella
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 393
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 37995873
- Full Text :
- https://doi.org/10.1016/j.biortech.2023.130051