Management of Wastewater Treatment Plant's Performance by Control of Waste Sludge Discharge

Waste sludge discharge is important in wastewater treatment plant (WWTP) performance control. Nutrient removal was compared in three cases in this paper: (1) without waste sludge discharge, (2) with waste sludge discharge and mixed liquid suspended solids (MLSS) was 1200 mg/L, (3) with waste sludge discharge and MLSS was 3500 mg/L. Based on comparison of waste sludge discharge control, the effluent quality of the WWTP was improved.