Fermentation system and application thereof in production of grease by co-culturing microalgae and yeast

The invention belongs to the technical field of microbial fermentation, and particularly relates to a fermentation system and application thereof in production of grease by co-culturing microalgae and yeast. According to the invention, the ceramic membrane with specific aperture and pressure tolerance is arranged in the channel between the two fermentation tanks, so that the fermentation system is provided, physical isolation can be formed when the fermentation system is used for co-culturing microalgae and yeast, exchange utilization of different fermentation metabolites is facilitated, and the utilization rate of the microalgae and the yeast is improved. Therefore, the biological yield of the yeast grease and the microalgae grease is improved. Experiments prove that by adopting the technical scheme provided by the invention, the biomass of the microalgae grease and the biomass of the yeast grease are improved, the step of separating the microalgae grease and the yeast grease is omitted, and rapid and effect