Effect of Illumination on Microalgae Cultured at High Cell Density in Photo-bioreactor

Photo-bioreactors(PBR) are important device for realizing high-density culture of microalgae.One of the key technologies for designing PBR is to choose the appropriate illumination mode.According to related research achievements domestic and international in recent years,the present research conditions of illumination technique in PBR were reviewed.An introduction is emphatically given of the effect of two factors as incident light properties(including light source,light intensity,light quality and light dark cycle etc.) and light energy distribution,on the microalgae growth.The future research directions are also put forward.It could provide reference for the efficient PBR system design and optimize.