Scrubbers are devices using liquid for the elimination of particulate matter or gases from an industrial exhaust or flue gas stream. This liquid entrains pollutant gases and particles for effectively washing them out of the gas flow.
Wet Industrial Scrubbers
This differs from the other scrubbers because the liquid-gas association increases the level of moisture of the gas expelled from the scrubber. The increased moisture will create a visible cloud leaving the scrubber.
Dry Industrial Scrubbers
The dry sorbent used to eliminate the acid from the gas is made of an alkaline slurry. This is basic in nature and will counteract the acid in the gas. This can be mixed with thse acid gas in two ways.
There are two types of dry industrial scrubbers. The first method is dry sorbent injection. In this, the gas is mixed directly with the alkaline sorbent.
Another method is the spray dryer absorbent method. In this, the polluted gas is processed through a mist of the sorbent. The sprayer lets for a good mix and effective removal of the contaminants from the gas.
Electrostatic Precipitators
Furthermore, there are also wet electrostatic precipitators helping remove high moisture gases. Some chemicals that can be removed from gas are sulfuric acid. The slurry containing the bound pollutant is rotated away from the electrostatic precipitator for removal of the contaminates and uphold an effective charged surface for removal of pollutants.
The demand for industrial scrubbers is on the rise, and will reach a value of USD 8,055 million by the end of this decade. It is because of the increasing count of manufacturing facilities resulting in the discharge of several pollutants.
