Air Diffusion Systems is a water and wastewater aeration treatment company located in Gurnee, IL. ADS fine bubble aeration has been used around the world as a natural and biological treatment solution for water and wastewater. Air Diffusion Systems specializes in lagoon wastewater treatment systems and drinking water reservoir aeration. The advanced ADS process can reduce BOD, TSS, nitrogen, and phosphorus levels to single-digit concentrations. With ADS it is now possible to obtain clean, odor-free effluent water, without the use of chemicals or sludge handling.