Organic matter + nutrients + O2 â†’ CO2 + H2O + _______

Civil Engineering : Waste Water Engineering - Quiz(MCQ)

Oâ‚‚

Nutrients

Biomass

Organic matter

Correct Answer : Biomass

Explanation : This is the general form of the equation for decomposition of organic matter during the BOD test. It should be noted that oxygen is consumed in the reaction and biomass is the catalyst for the reaction.

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.