Scrubbers are one of the primary devices that control gaseous emissions, especially acid gases. Scrubbers can also be used for heat recovery from hot gases by flue-gas condensation. ... There are several methods to remove toxic or corrosive compounds from exhaust gas and neutralize it.

What does a scrubber do and why is it important?

A scrubber or scrubber system is a system that is used to remove harmful materials from industrial exhaust gases before they are released into the environment. ... Dry Scrubbing: The removal of harmful components of exhausted flue gases by introducing a solid substance to the gas - generally in powdered form.

How do scrubbers remove pollutants?

Wet scrubbers can remove particulate matter by capturing them in liquid droplets. The droplets are then collected, with the liquid dissolving or absorbing the pollutant gases. Any droplets that are in the scrubber inlet gas must be separated from the outlet gas stream using a mist eliminator.