Fig. 2From: Improving biomass and carbohydrate production of microalgae in the rotating cultivation system on natural carriersScheme of rotating biofilm photobioreactor. This device consists of (1) a motor. (2) Floating cylinders in culture medium (3) culture chamber containing the culture medium. (4)conveyor. The vessel size is 0.21 × 0.13 × 0.1 m3. 3 rotating cylinders horizontally are rotated in BBM medium each time. The chamber was 24 h continuously irradiated by two fluorescent lampsBack to article page