Scrubber
A Scrubber is an air pollution control device used to remove pollutants, gases, and particulate matter from industrial exhaust gases. Scrubbers work by introducing the gas stream into a liquid (often water or a chemical solution) that captures the contaminants. There are two main types of scrubbers:
- Wet Scrubbers: These use a liquid (usually water or a chemical solution) to absorb and neutralize pollutants. The polluted gas stream is passed through the liquid, where contaminants dissolve or react, and the cleaned gas is then released. Wet scrubbers are effective in removing gases like sulfur dioxide (SO2), hydrogen chloride (HCl), and particulate matter.
- Dry Scrubbers: These use a dry reagent or absorbent material, such as lime, to neutralize acidic gases. The scrubbed gases are then passed through a particulate collection system to remove any remaining solid particles.