Abstract: The over multiply of toxic algae in eutrophic raw water has caused very hazardous algal toxins′ pollution. Some environmental factors such as light, temperature, organics and biomass et al in the water environment can affect the behavior of the toxins which could be more rapidly degraded by the microorganisms dociled under aerobic conditions to control the toxins in water treatment, some investigations had shown that each treatment unit (e.g.coagulation and flocculation, sedimentation, sand filter, and chl...