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Conversion of NaHCO 3 to Na 2 CO 3 with a growth of Arthrospira platensis cells in 660 m 2 raceway ponds with a CO 2 bicarbonation absorber.
- Source :
-
Microbial biotechnology [Microb Biotechnol] 2020 Mar; Vol. 13 (2), pp. 470-478. Date of Electronic Publication: 2019 Oct 23. - Publication Year :
- 2020
-
Abstract
- The weight ratio of Na <subscript>2</subscript> CO <subscript>3</subscript> /NaHCO <subscript>3</subscript> was investigated in order to improve microalgal productivity in large-scale industrial operations by converting NaHCO <subscript>3</subscript> to Na <subscript>2</subscript> CO <subscript>3</subscript> with a growth of Arthrospira platensis cells in 660 m <superscript>2</superscript> raceway ponds. Two microalgal cultivation systems with a NaHCO <subscript>3</subscript> by-product (SPBP) and a CO <subscript>2</subscript> bicarbonation absorber (CBAP) were firstly thoroughly introduced. There was a 13.3% decrease in the initial weight ratio of Na <subscript>2</subscript> CO <subscript>3</subscript> /NaHCO <subscript>3</subscript> resulting in a 25.3% increase in the biomass growth rate with CBAP, compared to that of SPBP. Increased sunlight intensity, solution temperature and pH all resulted in both a higher HCO 3 - absorbance and CO 3 2 - release, thereby increasing the weight ratio of Na <subscript>2</subscript> CO <subscript>3</subscript> /NaHCO <subscript>3</subscript> during the growth of A. platensis. The biomass growth rate was peaked at 39.9 g m <superscript>-2</superscript>  day <superscript>-1</superscript> when the weight ratio of Na <subscript>2</subscript> CO <subscript>3</subscript> /NaHCO <subscript>3</subscript> was 3.7. Correspondingly, the cell pigments (chlorophyll a and carotenoid) and trichome size (helix pitch and trichome length) reached to a maximum state of 8.47 mg l <superscript>-1</superscript> , 762 μg l <superscript>-1</superscript> , 57 and 613 μm under the CBAP system.<br /> (© 2019 The Authors. Microbial Biotechnology published by John Wiley & Sons Ltd and Society for Applied Microbiology.)
- Subjects :
- Biomass
Carbon Dioxide
Chlorophyll A
Ponds
Microalgae
Spirulina
Subjects
Details
- Language :
- English
- ISSN :
- 1751-7915
- Volume :
- 13
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Microbial biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 31646765
- Full Text :
- https://doi.org/10.1111/1751-7915.13497