Question

What percentage of dust particles can be removed if we use an electrostatic precipitator for the treatment of gaseous pollutants?

• A. 60%
• B. 75%
• C. 90%
• D. 95%

Answer 1

The correct option is C

90%

Electrostatic precipitator, also called electrostatic air cleaner is a device that uses electric charge to remove certain impurities either solid particles or liquid droplets from air or other gases in smokestacks and other flues. The precipitator functions by applying energy. 90% of the dust particles are removed from the polluted air when they pass through the electrostatic precipitators.