Review of advances in biological CO2 mitigation technology

CO2 fixation by microalgae has emerged as a promising option for CO2 mitigation. Intensive research work has been carried out to develop a feasible system for removing CO2 from industrial exhaust gases. However, there are still several challenging points to overcome in order to make the process more practical. In this paper, recent research activities on three key technologies of biological CO2 fixation, an identification of a suitable algal strain, development of high efficient photobioreactor and utilization of algal cells produced, are described. Finally the barriers, progress, and prospects of commercially developing a biological CO2 fixation process are summarized.