The typical steps in a conventional wastewater treatment follows the sequence:
1
Screening –Aerobic oxidation – Sedimentation – Disinfection - Discharge
2
Screening – Disinfection – Sedimentation – Aerobic oxidation –Discharge
3
Screening – Discharge – Sedimentation – Aerobic oxidation – Disinfection
4
Screening – Sedimentation – Aerobic oxidation – Disinfection – Discharge
5
Not Attempted