The domestic sewage in large cities

Question

The domestic sewage in large cities (A) Has a high BOD as it contains both aerobic and anaerobic bacteria (B) Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs) (C) When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen (D) Has very low amounts of suspended solids and dissolved salts

Tardigrade Admin · Accepted Answer

Correct answer is (b) Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)

Q. The domestic sewage in large cities

Has a high BOD as it contains both aerobic and anaerobic bacteria

Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)

When treated in STPs does not really require the aeration step as the sewage contains adequate oxygen

Has very low amounts of suspended solids and dissolved salts

Correct answer is (b) Is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)