Question

What is the use of wet scrubber in the dust collection?

(a) Remove flue gas

(b) Remove Scales on the furnace surface

(c) Remove the dust that has the moisture content

(d) Remove pollutants

The question was posed to me in quiz.

The above asked question is from Mechanical Dust Collectors in portion Steam Power Plant of Energy Engineering

Answer 1

Right option is (d) Remove pollutants

Easiest explanation: Wet scrubber is used remove the pollutants. The polluted gas stream is brought into contact with the scrubbing liquid, by spraying it with the liquid, by a pool of liquid, or by some other contact method, so as to remove the pollutants.