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Fecitrate converted from Fe 2 O 3 particles in coal-fired flue gas promoted microalgal biomass and lipid productivities.
- Source :
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The Science of the total environment [Sci Total Environ] 2021 Mar 15; Vol. 760, pp. 143405. Date of Electronic Publication: 2020 Nov 06. - Publication Year :
- 2021
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Abstract
- In order to reutilize Fe <subscript>2</subscript> O <subscript>3</subscript> particles in flue gas from coal-fired power plant as a ferrum nutrient for improving microalgae growth, Na-Citrate was proposed to chelate FeCl <subscript>3</subscript> derived from Fe <subscript>2</subscript> O <subscript>3</subscript> and HCl reactions to promote biomass and lipid productivities of Chlorella PY-ZU1. Fe-Citrate gave much higher biomass and lipid productivities than FeCl <subscript>3</subscript> , Fe-EDTA, Fe-DTPA and Fe-HEDTA, because organic chelator prevented Fe <superscript>3+</superscript> from depositing, lower stability constant resulted in easier dissociation of ferric chelate, smaller chelate facilitated Fe <superscript>2+</superscript> (reduced from Fe <superscript>3+</superscript> ) transportation through cell membranes. The biomass growth and photosynthetic capacity of Chlorella PY-ZU1 cultivated with Fe-Citrate (converted from Fe <subscript>2</subscript> O <subscript>3</subscript> particles) medium were similar to those with commercial ferric ammonium citrate medium. The biomass and lipid productivities of Chlorella PY-ZU1 cultivated with 5 mg L <superscript>-1</superscript> Fe-Citrate medium were 1.30 and 1.72 times, respectively, higher than those with FeCl <subscript>3</subscript> growth medium.<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 © 2020 Elsevier B.V. All rights reserved.)
- Subjects :
- Biomass
Carbon Dioxide
Coal
Lipids
Chlorella
Microalgae
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1026
- Volume :
- 760
- Database :
- MEDLINE
- Journal :
- The Science of the total environment
- Publication Type :
- Academic Journal
- Accession number :
- 33199017
- Full Text :
- https://doi.org/10.1016/j.scitotenv.2020.143405