Laboratory of Biochemistry Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, Rio Grande-RS 96201-900, Brazil.
Z Naturforsch C J Biosci. 2011 May-Jun;66(5-6):313-8. doi: 10.1515/znc-2011-5-616.
Coal is the most abundant of the fossil fuels, with reserves estimated at 102 billions of tons. The feasibility of using coal as a fuel depends upon reducing emissions of gas when it is burnt, such as carbon dioxide (CO2), sulfur oxides (SO(x)), and nitrogen oxides (NO(x)). The removal of CO2 with microalgae may be one of the most efficient ways of reducing this gas, without the need for radical changes in the world's energy supply and production methods. Spirulina sp. LEB-18 and Scenedesmus obliquus LEB-22 were cultivated in serial tubular photobioreactors, with the aim of measuring the potential of CO2 biofixation and the resistance of the microalgae to SO2 and NO. Spirulina sp. and S. obliquus had CO2 biofixation scores of 0.27 and 0.22 g L(-1) d(-1), respectively. Both microalgae were resistant to SO2 and NO, and grew during the 15 d they were cultivated, which proves that using microalgae is an efficient method of biofixation of CO2 emitted when fossil fuels are burnt.
煤炭是最丰富的化石燃料，储量估计为 1020 亿吨。煤炭作为燃料的可行性取决于减少燃烧时气体的排放，如二氧化碳（CO2）、硫氧化物（SO(x)）和氮氧化物（NO(x)）。用微藻去除 CO2 可能是减少这种气体的最有效方法之一，而无需对世界的能源供应和生产方法进行根本性改变。将螺旋藻 LEB-18 和斜生栅藻 LEB-22 在串联管式光生物反应器中进行培养，目的是测量 CO2 生物固定的潜力以及微藻对 SO2 和 NO 的抗性。螺旋藻和斜生栅藻的 CO2 生物固定分数分别为 0.27 和 0.22 g L(-1) d(-1)。两种微藻均能抵抗 SO2 和 NO，并且在培养的 15 天内生长，这证明了利用微藻是固定燃烧化石燃料时排放的 CO2 的有效方法。
