所属领域：
微藻光驱固碳合成生物燃料产品的关键技术研究
资源类型：
微藻生物燃料
/ 生物柴油
文献作者：
Giannetto, Michael J.; Retotar, Allison; Rismani-Yazdi, Hamid; Peccia, Jordan
文献发表年份：
2015
文献期刊：
BIORESOURCE TECHNOLOGY
文献摘要：Microbial contamination of growth reactors is a major concern for microalgal biofuel production. In this study, the oleaginous, CO2-tolerant microalga Scenedesmus dimorphus was combined with a wastewater-derived microbial community and grown in replicated sequencing batch photobioreactors. The reactors were sparged with either ambient air or 20% v/v CO2. In the initial growth cycles, air and the 20% CO2 reactors were similar in terms of growth and microbial community structure. Beyond the fourth growth cycle, however, the ambient air reactors had larger decreases in cell density and growth rate, and increases in species richness and non-algal microorganisms compared to the 20% CO2 reactors. Both qPCR and rDNA sequence analyses demonstrated a greater loss in S. dimorphus enrichment in the ambient-air reactors compared to the 20% CO2 reactors. These results demonstrate that environmental parameters can be used to delay the adverse impacts of microbial contamination in open, mixed-culture microalgae bioreactors. (C) 2015 Elsevier Ltd. All rights reserved.
文献类型： Article
文献语种： English
关键词： Microalgal biofuels; CO2 tolerance; Wastewater; Scenedesmus dimorphus; Microalgae ecology
文献作者地址： [Giannetto, Michael J.; Retotar, Allison; Rismani-Yazdi, Hamid; Peccia, Jordan] Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06520 USA
