Scrubbers

Wet scrubbers accomplish particulate collection by employing water or another liquid as the collection media. There are several different types of scrubbers; the majority of particulate scrubbers capture particles by creating a wetted target. This moist target plate could be a pool of water or the spot where a water droplet and a particle contact.

Wet scrubbers have advantages such as their versatility in temperature and moisture ranges, resilience to chemical corrosion, and low maintenance requirements. Wet scrubbers, on the other hand, need a lot of water, which must be disposed of together with the particles they collect, which reduces the efficiency of collection and raises the cost of energy. In the mineral processing industry, settling ponds are a typical method of disposing of collected particulate, and the water from these ponds is frequently recycled.

This type of collector’s pressure drop is what essentially determines how well it cleans the air. Higher air cleaning efficiency are achieved by scrubbers with higher differential pressures than by those with lower differential pressures. The range of these pressures is 1 to more than 15 inches wg. The type of scrubber selected for a given application relies on the level of air cleaning required, the amount of dust present, and the size distribution of the particles.

When treating hot, moist gases, wet scrubbers are especially useful. When moist hot gases are cleaned with fabric collectors, issues including bag blindness and condensation may occur. When scrubbers are used, these issues are resolved. Wet scrubbers, on the other hand, discharge contaminated water that needs additional treatment in a settling pond or sewage system.