Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
Bioresour Technol. 2013 Jan;128:359-64. doi: 10.1016/j.biortech.2012.10.119. Epub 2012 Nov 2.
Effects of flue gas components on growth of Scenedesmus dimorphus were investigated and two methods were carried out to eliminate the inhibitory effects of flue gas on microalgae. S. dimorphus could tolerate CO(2) concentrations of 10-20% and NO concentrations of 100-500 ppm, while the maximum SO(2) concentration tolerated by S. dimorphus was 100 ppm. Addition of CaCO(3) during sparging with simulated flue gas (15% CO(2), 400 ppm SO(2), 300 ppm NO, balance N(2)) maintained the pH at about 7.0 and the algal cells grew well (3.20 g L(-1)). By intermittent sparging with flue gas controlled by pH feedback, the maximum biomass concentration and highest CO(2) utilization efficiency were 3.63 g L(-1) and 75.61%, respectively. These results indicated that S. dimorphus could tolerate high concentrations of CO(2) and NO, and the methods of CaCO(3) addition and intermittent sparging have great potential to overcome the inhibition of flue gas on microalgae.
研究了烟气成分对蛋白核小球藻生长的影响，并采用两种方法消除烟气对微藻的抑制作用。小球藻可耐受 10-20%的 CO(2)浓度和 100-500 ppm 的 NO 浓度，而最大耐受的 SO(2)浓度为 100 ppm。在模拟烟气（15% CO(2)、400 ppm SO(2)、300 ppm NO、平衡 N(2))鼓泡过程中添加 CaCO(3)可将 pH 值维持在约 7.0，藻类细胞生长良好（3.20 g L(-1)）。通过 pH 反馈控制的间歇式烟气鼓泡，最大生物量浓度和最高 CO(2)利用率分别达到 3.63 g L(-1)和 75.61%。这些结果表明，小球藻可耐受高浓度的 CO(2)和 NO，CaCO(3)添加和间歇式鼓泡的方法具有克服烟气对微藻抑制的巨大潜力。
