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A scrubber in the exhaust of a chemical industrial plant removes:-
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- gases like sulphur dioxide
- particulate matter of the size 5 micrometer or above
- gases like ozone and methane
- particularte matter of the size 2.5 micrometer or less
Correct Option: A
Scrubbers are air pollution control devices that use liquid to remove particulate matter or gases from an industrial exhaust or flue gas stream. This atomized liquid (typically water) entrains particles and pollutant gases in order to effectively wash them out of the gas flow. It removes or scrubs SO2 emissions from the exhaust of coal-fired power plants.
