Write a brief account of electrostatic precipitator with a neat labelled diagram.

Explanation

Electrostatic precipitator:
It is the device widely used to remove particulate matter present in the exhaust of thermal power plant.

It can remove over `99%` particulate matter present in the exhaust from a thermal power plant.
Esp has electrode wires and a stage of collecting plates.
Electrode wires are provided with an electric current of several thousand volts, which produce a corona that releases electrons.
These electrons attach to dust particles and give them a negative charge. The collecting plates are earthed so that they attract the charged dust particles.
The velocity of air passing between the plates must be slow enough to allow the dust particles to fall.