This study reveals that the performance of SBR is dependent on
OLR and the system can sustain its performance up to the loading
rate of 6.5 kg COD/m3 day and 0.62 kg BOD/m3 day. If the maximum
OLR is exceeded, the process will be overloaded, thereby causing
deterioration in treated effluent quality. Hence, it is crucial to
determine the maximum achievable OLR in the activated sludge in order to improve the process and prevent process breakdowns due
to overloading.