PSB (photosynthetic bacteria) wastewater treatment has been widely applied in thefield of sewage treatment and resource recovery, because of its low powerconsumption, pollutants removal and biomass resource recovery at the same time.However, the problem of difficult sedimentation leads to bacteria loss and difficultyin solid-liquid separation, which influences the effluent quality and biomassresource recovery. Till now the PSB sedimentation has received little coverage.This study used a strain of Rhodobacte...