Question

Which of the following options best describes the primary function of a scrubber in the context of air pollution control from industrial emissions?

1. Scrubbers are electrostatic devices that remove particulate matter from industrial exhausts to prevent its release into the atmosphere.
2. Scrubbers utilize a high-speed air flow to separate harmful gases, such as nitrogen and oxygen, from industrial emissions before their release.
3. Scrubbers reduce the concentration of harmful particulate matter smaller than 2.5 micrometers in diameter, effectively mitigating their detrimental effects on human health.
4. Scrubbers use a spray of water or lime to eliminate gases like sulfur dioxide from industrial exhausts before their dispersal into the environment.

• A. iv only
• B. i only
• C. None of these
• D. i, ii

Answer 1

Answer:

A. iv only

Scrubbers

• Scrubbers are important devices used in industries to control and reduce air pollution.
• They are designed to remove specific gases, such as sulfur dioxide, from industrial exhaust before releasing it into the atmosphere.
• These scrubbers operate by passing the exhaust through a spray of water or lime, which facilitates the absorption of harmful gases.
• By effectively removing these pollutants, scrubbers play a crucial role in mitigating the adverse effects of industrial emissions on the environment and human health.