Question

Electrostatic precipitation of carbon from smoke is used to control what type of pollution?
1. Air
2. Soil
3. Both 1 and 2
4. None of the above

Answer 1

Electrostatic precipitator, a device that uses an electric charge to remove certain impurities either solid particles or liquid droplets from air or other gases in smoke stacks and other flues. The precipitator functions by applying energy only to the particulate matter being collected without significantly impeding the flow of gases. Originally designed for recovery of valuable industrial-process materials, electrostatic precipitators are used for air pollution control, particularly for removing particles from waste gases at industrial facilities and power-generating stations.