Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
Biotechnol Adv. 2011 Mar-Apr;29(2):189-98. doi: 10.1016/j.biotechadv.2010.11.001. Epub 2010 Nov 19.
The problem of climate change arising mainly from CO₂ emission is currently a critical environmental issue. Biofixation using microalgae has recently become an attractive approach to CO₂ capture and recycling with additional benefits of downstream utilization and applications of the resulting microalgal biomass. This review summarizes the history and strategies of microalgal mitigation of CO₂ emissions, photobioreactor systems used to cultivate microalgae for CO₂ fixation, current microalgae harvesting methods, as well as applications of valuable by-products. It is of importance to select appropriate microalgal species to achieve an efficient and economically feasible CO₂-emission mitigation process. The desired microalgae species should have a high growth rate, high CO₂ fixation ability, low contamination risk, low operation cost, be easy to harvest and rich in valuable components in their biomass.
主要由 CO₂ 排放引起的气候变化问题目前是一个严峻的环境问题。利用微藻进行生物固碳最近成为一种很有吸引力的 CO₂ 捕获和回收方法，其下游利用和微藻生物质的应用也具有额外的好处。本文综述了微藻缓解 CO₂ 排放的历史和策略、用于培养微藻进行 CO₂ 固定的光生物反应器系统、当前的微藻收获方法以及有价值的副产物的应用。选择合适的微藻物种对于实现高效、经济可行的 CO₂ 减排过程非常重要。理想的微藻物种应具有高生长率、高 CO₂ 固定能力、低污染风险、低运营成本、易于收获以及其生物质中富含有价值的成分。
