Abstract
A novel cyclic flow photobioreactor, designed for the capture and recycle of CO2 using microalgae, was deployed at a coal-fired power plant. Scenedesmus acutus was cultured continuously for a four-month period, during which a biomass productivity of 0.1–0.2 g L−1 day−1 was observed. Samples taken for DNA sequencing showed a strong correlation between the composition of the culture and environmental conditions. Dry and liquid biomass samples and the industrial fertilizers used for preparation of the nutrient medium were analyzed to determine the presence of heavy metals (As, Cd, Hg, Se) and results were compared with standardized and/or regulated maximum contaminant levels (MCLs) for metals in several possible algae derived products. Concentrations of the metals in dry algae biomass were consistent with the incorporation of metals from the supplied nutrients.
Original language | English |
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Article number | 122014 |
Journal | Bioresource Technology |
Volume | 293 |
DOIs | |
State | Published - Dec 2019 |
Bibliographical note
Funding Information:The authors thank Landon Caudill for his help and acknowledge the considerable assistance of Doug Durst and Joe Clark ( Duke Energy ) with the activities at East Bend Station. The Kentucky Department of Energy Development and Independence, Duke Energy , and the United States Department of Energy (award no. DE-FE0026396 ) are thanked for financial support. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof.
Funding Information:
The authors thank Landon Caudill for his help and acknowledge the considerable assistance of Doug Durst and Joe Clark (Duke Energy) with the activities at East Bend Station. The Kentucky Department of Energy Development and Independence, Duke Energy, and the United States Department of Energy (award no. DE-FE0026396) are thanked for financial support. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof.
Publisher Copyright:
© 2019 Elsevier Ltd
Keywords
- Algae
- Carbon dioxide
- Heavy metals
- Photobioreactor
- Power plant
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal