Simultaneously, phosphate was released during the anoxic feeding phase. Subsequently, the rest of the acetate was utilized in the period of aerobic cycle while phosphate was removed. The removal efficiency for the biological phosphorus improved gradually during the aerobic phase and achieved an average removal rate of 72.46% at 50°C, followed by 68.50% and 67.00% at 30°C and 40°C, respectively which is comparable to previous study by Ebrahimi et al. (2010) in treating synthetic wastewater using biogranules.