Plant Operation Test 2025 – 400 Free Practice Questions to Pass the Exam

A scrubber's primary function is to remove contaminants from gases, which is essential for reducing air pollution and ensuring that emissions comply with environmental regulations. Scrubbers achieve this by utilizing a liquid to absorb pollutants from the gas stream, including harmful substances such as sulfur dioxide, particulates, and volatile organic compounds.

This method can significantly lower the concentration of these pollutants before the gases are released into the atmosphere. The operation of scrubbers can vary based on the specific design and the gases being treated, but the fundamental principle remains the same: the interaction between the gaseous pollutants and the scrubbing liquid is what leads to the removal of these harmful contaminants.

While other options describe different processes—such as energy generation from waste or filtering particles from liquids—they do not pertain to the core function of a scrubber in relation to gas treatment.