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Improving growth rate of microalgae in a 1191m(2) raceway pond to fix CO2 from flue gas in a coal-fired power plant.
- Source :
-
Bioresource technology [Bioresour Technol] 2015 Aug; Vol. 190, pp. 235-41. Date of Electronic Publication: 2015 Apr 29. - Publication Year :
- 2015
-
Abstract
- CO2 fixation between microalgal biomass and culture solution and the weight ratio of biomass consumption at nighttime to biomass growth at daytime were compared in an open raceway pond aerated with flue gas from a coal-fired power plant. Average daytime sunlight intensity and solution temperature were optimized to improve microalgal growth rate and to enhance the efficiency of CO2 fixation. When the average daytime solution temperature increased from 12 to 26°C, the rate of biomass consumption due to microalgal respiration at nighttime increased from 6.0 to 7.9g/m(2)/d, which was approximately 25% of the biomass growth rate at daytime. Furthermore, when the average daytime sunlight intensity increased from 39,900 to 88,300lux, CO2 fixation rate in the microalgal biomass increased from 18.4 to 40.7g/m(2)/d, which was approximately 1/3 of CO2 removal rate from flue gas by the microalgal culture system.<br /> (Copyright © 2015 Elsevier Ltd. All rights reserved.)
- Subjects :
- Air Pollutants isolation & purification
Biodegradation, Environmental radiation effects
Carbon Dioxide isolation & purification
Cell Proliferation physiology
Cell Proliferation radiation effects
Dose-Response Relationship, Drug
Light
Microalgae radiation effects
Photobioreactors microbiology
Photoperiod
Air Pollutants metabolism
Carbon Dioxide metabolism
Coal Ash metabolism
Microalgae physiology
Ponds microbiology
Power Plants
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 190
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 25958147
- Full Text :
- https://doi.org/10.1016/j.biortech.2015.04.085