| Download | - View final version: Photosynthetic conversion of carbon dioxide from cement production to microalgae biomass (PDF, 1.0 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1007/s00253-023-12769-w |
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| Author | Search for: Dickinson, Kathryn E.1ORCID identifier: https://orcid.org/0009-0004-2680-9200; Search for: Stemmler, Kevin1; Search for: Bermarija, Tessa1; Search for: Tibbetts, Sean M.1; Search for: MacQuarrie, Scott P.1; Search for: Bhatti, Shabana1; Search for: Kozera, Catherine1; Search for: O'Leary, Stephen J. B.1; Search for: McGinn, Patrick J.1 |
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| Affiliation | - National Research Council of Canada. Aquatic and Crop Resource Development
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| Funder | Search for: National Research Council Canada |
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| Format | Text, Article |
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| Subject | algae; flue gas; cement; Chlorella; carbon capture; emissions |
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| Abstract | Production of microalgae is a potential technology for capturing and recycling carbon dioxide from cement kiln emissions. In this study, a process of selecting a suitable strain that would effectively utilize carbon dioxide and generate biomass was investigated. A down-selection screening method was applied to 28 strains isolated from the area surrounding a commercial cement plant. In laboratory-scale (1 L) continuous-mode chemostats, observed productivity was > 0.9 g L⁻¹ d⁻¹ for most strains studied. Chlorella sorokiniana (strain SMC-14M) appeared to be the most tolerant to cement kiln gas emissions in situ, delivered under control of a pH-stat system, and was down-selected to further investigate growth and biomass production at large-scale (1000 L) cultivation. Results demonstrated little variability in lipid, crude protein, and carbohydrate composition throughout growth between kiln-gas grown algal biomass and biomass produced with laboratory grade CO₂. The growth rate at which the maximum quantity of CO₂ from the emissions is recycled also produced the maximum amount of the targeted biomass components to increase commercial value of the biomass. An accumulation of some heavy metals throughout its growth demonstrates the necessity to monitor the biomass cultivated with industrial flue gases and to carefully consider the potential applications for this biomass; despite its other attractive nutritional properties. |
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| Publication date | 2023-09-21 |
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| Publisher | Springer |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | b83b52f6-0468-4d8c-8e71-b49eadef8dbc |
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| Record created | 2023-11-14 |
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| Record modified | 2023-11-14 |
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