Question

what is activated sludge​

Answer 1

Answer:

The activated sludge process is a type of wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa

Answer 2

Answer:

With reference to sewage treatment, activated sludge is sediment remaining after biological treatment of water. It contains aerobic bacteria.

It can be used as inoculum or in biogas production.