Question

explain the stages include in sewage treatment ?​

Answer 1

Explanation:

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.

Answer 2

Answer:

Treatment Steps

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

Hope it helps