Spray tower can be made by plastic of PP/PVC or FRP material.Wet scrubbers trap suspended particles by direct contact with a spray of water or other liquid. In effect, a scrubber washes the particulates out of the dirty airstream as they collide with and are entrained by the countless tiny droplets in the spray.For the treatment of corrosive gases (e.g., acid, alkali gas), the current methods is using liquid to absorb and neutralize; for treatment of organic waste, usually make a pretreatment-using liquid to absorbent. Tow methods both use spray tower to work.