Question: what are the steps of wastewater treatment?
Answer: Step 1: Screening and Pumping. ...  Step 2: Grit Removal. ...  Step 3: Primary Settling. ...  Step 4: Aeration / Activated Sludge. ...  Step 5: Secondary Settling. ...  Step 6: Filtration. ...  Step 7: Disinfection. ...  Step 8: Oxygen Uptake.