Which of the following type of waste water treatment process is used for treating waste water or industrial waste water using aeration and biological flocs?

Civil Engineering : Waste Water Engineering - Quiz(MCQ)

Active sludge process

Aeration

Anaerobic digestion

Biological aeration

Correct Answer : Active sludge process

Explanation : One of the sewer waste water treatment processes is a biological treatment known as activated-sludge process. Waste water is agitated and aerated to remove solids and oxidation methods are introduced to activate decomposition.

Recently Updated in Waste Water Engineering Questions

What is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of the water quality called?

Algae growth

Eutrophication

Denitrification

Nitrification

Correct Answer : Option (B) : Eutrophication

Explanation : Eutrophication is the growth of huge amounts of algae and other aquatic plants leading to the deterioration of water quality. The untreated wastewater is rich in organic matter which demands oxygen.