Advanced Treatment Units
Aero-Stream Bio-Brush ATU
Aero-Stream offers NSF 40-certified ATUs from 450 to 1,500 gpd. These systems are based on Bio-Brush technology utilizing an extended aeration/attached growth bacteria process. Each flow rate is available in one-, two- and three-tank configurations and can be selected based on the desired treatment level. These systems are designed to fit in locally available pre-cast septic tanks with no special configurations. Achieving removal efficiency of greater than 90% for BOD and greater than 93% for TSS, these systems are simple and energy efficient. The large surface area of the Bio-Brush avoids system upset from biological or hydraulic overloading. The

















