What is the combination of using a photocatalyst and UV or visible light for the treatment of wastewater and gaseous pollutants is called?

Civil Engineering : Waste Water Engineering - Quiz(MCQ)

Photocatalysis

Wet air oxidation

Advanced oxidation process

Super critical water oxidation

Correct Answer : Photocatalysis

Explanation : Photocatalysis is the combination of using a photocatalyst and UV or visible light for the treatment of wastewaters and gaseous pollutants. When illuminating a photocatalyst using UV or visible light, various organic compounds can be oxidized and mineralized at the photocatalyst surface or oxidized in solution ambient and atmospheric condition.

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.