ESP Basics - How they work (1 of 6)
An electrostatic precipitator (ESP) uses electricity to capture dust particles from a gas stream.
A very high voltage (typically 40,000 to 110,000 Volts) is developed
across an air gap between a discharge electrode and a flat metal collecting
surface or plate. The process gases (laden with dust) pass between these collecting surfaces and in so doing passes through the highly energised electric field.
The dust particles are then charged negatively by cascading electrons and gas molecules. The strong electrical field then drives the dust to the collecting plates where it's deposited.
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