Multiple choice

Which method is used for the removal of sulphur dioxide and ammonia from the polluted air?

  1. Wet scrubbers

  2. Absorption

  3. Gravitational method

  4. Electrostatic precipitator

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wet scrubbers are the most widely FGD technology for SO2 control throughout the world. Calcium, sodium, and ammonia based absorbents have been used in a slurry.
Wet scrubbers can achieve removal efficiency as high as 99%.