Question

answer the following question in detail

Answer 1

I don't know ok you find answers from other

Answer 2

Aerobic bacteria

Explanation:

In sewage plants, they use the bacteria that require oxygen.

so, that air is circulated in the treatment tank and aerobic bacteria help in the break down of the waste from the wastewater.

Few systems first perform pre-treatment before the main treatment.

The main role is to reduce the volume of sludge and produce methane gas from it.

This is the role of aerobic bacteria in the sewage plant.