The removal of pollutants mainly occur by a process of impingement of wetted particles on collecting surfaces, followed by their removal from the surfaces by a countercurrent flush with a liquid - water or reagent solution properly proportionated.
The system recirculates the same washing liquid up to its saturation.
Once purified , the air pass through a demister stage, which have the function to eliminate any possible "carryover effects" and then is emitted into the atmosphere.
The gas stream is conveyed through the scrubber by a centrifugal fan properly dimensioned.
The plants are supplied with all the equipment that are necessary for their proper functioning. (recirculation pumps, spray nozzles, lines for the reinstatement of the fresh water, etc…)