| 초록 |
Microalgal offshore cultivation has several potential benefits such as the use of large cultivable area, mixing by waves, and relatively stable temperature. Photobioreactors that could take advantages of the benefits could help reduce cost of microalgal cultivation. Microalgal biomass productivity of Tetraselmis sp. MBEyh01L in serial tubular PBRs, deployed in the Young-Heung Island, Incheon was investigated. During the culture period, the seawater temperature was relatively stable at 13.6±1.1ºC while atmospheric temperature was 19.5±8.3ºC. The maximum biomass concentration and productivity were 6.1 g/L and 11.2 g/m2/day, respectively, for 19 days. The results suggest that ST-PBRs could cultivate microalgae without additional energy input for culture mixing and temperature control. As the productivity of the PBRs was lower than conventional PBRs, further developments for more efficient delivery of wave energy into culture mixing will contribute to improved biomass productivity. |
