Electrostatic precipitator
a filtration device that removes fine dust particles from a flowing gas using the force of an induced electrostatic charge through the patriculate matter being collected From Wikipedia, the free encyclopedia
An electrostatic precipitator (ESP) is a device to capture particles from a flowing gas. It uses the force produced by electrostatic charge. ESPs are used in many power plants which burn fuel to produce energy, such as in power stations. Any gas produced by fuel burning will pollute the air much less after being passed through an ESP.
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