Which of the following is a technique used to control gaseous pollutants by transferring them into a liquid?
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A.
Adsorption
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B.
Absorption
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C.
Incineration
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D.
Filtration
Correct Answer:
B. Absorption
Explanation:
Absorption is the process used to manage gaseous pollutants by dissolving or transferring them into a liquid solvent. In this technique, the gas stream is brought into contact with a liquid, and the specific pollutants are absorbed based on their solubility or through a chemical reaction with the liquid medium. This differs from adsorption, where particles adhere to a solid surface, or filtration and incineration, which involve physical trapping or thermal destruction.
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