Through investigating biofacies change in activated sludge during the treatment of brewery wastewater,so as to explore the relationship between the change of biofacies and Chemical Oxygen Demand(COD).Wastewater was treated by shake flask method.Bacterial,mold,actinomycetes and protozoa were determined by using plate colony count and microscope counting method respectively.The number of bacteria increased rapidly in the first two days after inoculation and then entered into a slow decline period.However,the ...