A sewage treatment process, in which part of decomposer bacteria present in the wastes is recycled at the start of the process is called 

1
Cyclic treatment.
2
Activated sludge treatment.
3
Primary treatment.
4
Tertiary treatment.
5
Not Attempted

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation