Carbon dioxide fixation and biomassproduction from combustion flue gas using energy microalgae

Author

Bingtao Zhao, Yaxin Su, Yixin Zhang and Guomin Cui

Energy, 2015, vol. 89, issue C, pages 347-357

Abstract: Algae-based bioenergy has been regarded as the next generation of renewable energy. To fix CO2 from flue gas and harvest algal biomass for energy conversion, three energy microalgae, Chlorella sp., Isochrysis sp. and Amphidinium carterae, were investigated in 1-L bubble column photobioreactors with an aeration of 15% CO2 at the flue-gas level. According to the potential on CO2 fixation and biomassproduction, Chlorella sp. was selected as the dominant species due to its superiority to the other species, with a specific growth rate of 0.328 d−1, a biomass production rate of 0.192 gL−1 d−1 and a CO2 fixation rate of 0.353 gL−1 d−1. Furthermore, Chlorella sp. was cultured under varied physicochemical parameters, including CO2 concentrations, aeration rates and toxic compounds (SO2, NO and Hg2+) to assess its performances. The maximum specific growth rate, biomass productionrate and CO2 fixation rate were found to be 0.372 d−1, 0.268 gL−1 d−1 and 0.492 gL−1 d−1 at a CO2 concentration of 10%; 0.375 d−1, 0.274 gL−1 d−1 and 0.503 gL−1 d−1 at an aeration rate of 0.1 vvm; and 0.328 d−1, 0.192 gL−1 d−1 and 0.353 gL−1 d−1 in the absence of toxic compounds, respectively. The results provide a basis for microalgal-based CO2 emission reduction and bioenergy utilization in pilot-scale applications.

Keywords: Energy microalgae; CO2 fixation; Biomass production; Flue gas; Physicochemical parameters (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations View citations in EconPapers (2) Track citations by RSS feed

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544215007458
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:http://EconPapers.repec.org/RePEc:eee:energy:v:89:y:2015:i:c:p:347-357

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from  Elsevier
Series data maintained by Dana Niculescu (repec@elsevier.com).

For further details log on website :
http://econpapers.repec.org/scripts/search.pf?kw=biomass%20production;pg=1