What is an electrostatic precipitator?

Answer 1

An electrostatic precipitator (ESP) is a piece of equipment that uses high DC voltage to deposit a charge on precipitates passing through it, and a charge of opposite polarity on collector plates that attract and hold the precipitates. The whole process produces an outflow of air or gas that has far less particulate matter in it.

Devices like the ESP are used in different environments to clean air, and are also applied to clean the flue gases coming out of boilers to remove flyash.

Answer 2

a

device

for

removing

small

particles,

as

of

smoke,

dust,

or

oil,

from

a

gas,

by

passing

the

gas

first

through

an

electrically

charged

screen

that

gives

a

charge

to

the

particles,

then

between

two

charged

plates

where

the

particles

are

attracted

to

one

surface.

Answer 3

Smoke particles pick up a positive charge when it pass through a positively charged metal grid, smoke particles are attracted to the collecting plates. Collecting plates are knocked to remove the smoke particles.