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Which of the following air pollution control device has maximum efficiency?
EXPLANATION
Wastewater Engineering
- Electrostatic Precipitators (ESPs):
- Highly efficient industrial particulate emission control devices that use high-voltage electrical fields (30–75 kV) to ionize flue gases, electrostatically charge airborne dust particles, and collect them onto oppositely charged collector plates.
- Achieves the highest collection efficiency (99.0% to 99.9%) for fine sub-micron particulates compared to cyclonic scrubbers, settling chambers, and dynamic precipitators. (Correct answer: Option 4)
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