List of top Environmental Engineering Questions on Air, water and soil pollution: Control

Aeration is employed as a treatment option for the removal of several pollutants from contaminated water. Identify the pollutant(s), where aeration is employed as part of their removal:

What is the CORRECT match between the air pollutants and treatment techniques given in the table

Air Pollutants		Treatment techniques
P	NO2	i	Flaring
Q	SO2	ii	Cyclonic separator
R	CO	iii	Lime scrubbing
S	Particles	iv	NH3 injection