If the industrial processes at your plant or wastewater treatment facility create any kind of harmful gas, wet and dry scrubbers can be used to help you get rid of the harmful pollutants and contaminants that are contained within this gas.
Collects Particulate Matter as Well as Gases
While wet scrubbers remove toxic gases from the air, they also target particulate matter.
Dry scrubbers are used mainly to remove acid gases from combustion sources. Generally, this is done by introducing a series of dry reactants to exhaust gas at high speeds. This neutralizes the pollutants in the gas. This task is done in three steps: gas cooling, reagent injection, and filtering.
The two main types of scrubbers are wet scrubbers and dry scrubbers.
In wet scrubbing processes, liquid or solid particles are removed from a gas stream by transferring them to a liquid. The liquid most commonly used is water. A wet scrubber's particulate collection efficiency is directly related to the amount of energy expended in contacting the gas stream with the scrubber liquid.
The biggest distinction between the types of scrubbers is what they use to remove contaminants. The original scrubber type, the wet scrubber, uses liquid to wash exhaust streams. Dry scrubbers use dry media instead, and electrostatic precipitators use an electric charge to remove particles from the air.
Dry scrubbers have a three-step process to remove acids from exhaust gases. By taking out these pollutants, dry scrubbers can reduce the incidence of acid rain and lower harmful air pollution levels.
The 3 Most Common Types of Wet Scrubbers
Fiberglass Reinforced Plastic (FRP) is used in wet scrubber construction because the material is economical, easily fabricated, lightweight, and has good resistance to both alkaline and acid environments.
A scrubber is a waste gas treatment installation in which a gas stream is brought into intensive contact with a liquid, with the aim of allowing certain gaseous components to pass from the gas to the liquid. Scrubbers can be employed as an emission-limiting technique for many gaseous emissions.