A water-scrubber consists of a gas flow and a biological engine. In the water scrubber, the components to remove from the gas flow are absorbed in the water. The purified water is recycled to the scrubber, where it absorbs pollution. The water scrubber diagram suggests that wet scrubbers can remove particulate matter by capturing them in liquid droplets. The droplets are then collected, with the liquid dissolving or absorbing the pollutant gases. Any droplets in the scrubber inlet gas must be separated from the outlet gas stream using a mist eliminator. EdrawMax Online comes with free symbols that let you create similar-looking diagrams.