Abstract: The wastewater process constituted with air floating-hydrolytic acidification-upflow blanket filter-sequencing batch reactor unit was used in treatment of capreomycin sulfate wastewater from a pharmaceutical company. The results showed that under conditions of the concentrations of COD and SS in the inflow varying from 6 000 to 20 000 mg/L and 2 000 to 5 000 mg/L respectively, and ratio of BOD5:COD from 0.25 to 0.4, the concentrations of COD, BOD5 and NH3-N in the outflow were less than 300 mg/L, 50 mg/L, a...