Beneficial re-use of industrial CO2 emissions using microalgae: Demonstration assessment and biomass characterization

Here, 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...

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Bibliographic Details
Published inBioresource technology Vol. 293
Main Authors Mohler, Daniel, Wilson, Michael H., Kesner, Stephanie, Schambach, Jenna Y., Vaughan, Darin, Frazar, Molly, Stewart, Jennifer, Groppo, Jack, Pace, Robert, Crocker, Mark
Format Journal Article
LanguageEnglish
Published United States Elsevier 16.08.2019
Subjects
algae
BASIC BIOLOGICAL SCIENCES
carbon dioxide
heavy metals
photobioreactor
power plant
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Summary:Here, 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.
Bibliography:FE0029623; FE0026396
USDOE
ISSN:0960-8524
1873-2976