This packed column scrubber operates in countercurrent or cross flow design where the air stream moves vertically or horizontally through the packed bed and is irrigated by scrubbing liquid flows down through the packing. This fume scrubber is the most common type of unit encountered in gaseous pollutant control for the removal of the undesirable inorganic pollutants such as sulfur gas, oxides of carbon, nitrogen gases, halogens, halides, photochemical products, odor, cyanides and ammonia.
