Optimization of CO 2 Biofixation by Chlorella vulgaris Using a Tubular Photobioreactor
Abstract The effects of various CO 2 concentrations in CO 2 bioconversion by cultivation of microalga Chlorella vulgaris were investigated using a vertical tubular photobioreactor. The response surface technique with central composite design was applied to model the CO 2 biofixation rate, the specif...
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| Published in | Chemical engineering & technology Vol. 41; no. 7; pp. 1313 - 1323 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
01.07.2018
|
| Online Access | Get full text |
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| Summary: | Abstract
The effects of various CO
2
concentrations in CO
2
bioconversion by cultivation of microalga
Chlorella vulgaris
were investigated using a vertical tubular photobioreactor. The response surface technique with central composite design was applied to model the CO
2
biofixation rate, the specific growth rate (SGR), and the biomass productivity of
C. vulgaris
as function of CO
2
concentration and cultivation time. The developed nonlinear model was employed to determine the optimum CO
2
concentration in an air‐CO
2
mixture and the cultivation time for maximum CO
2
biofixation, SGR, and microalgae biomass productivity. In addition, a multiple responses optimization method was also applied to determine the maximum CO
2
uptake rate, the SGR, and the biomass productivity, simultaneously. The predicted optimum values agreed well with the experimental data. |
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| ISSN: | 0930-7516 1521-4125 |
| DOI: | 10.1002/ceat.201700210 |