The Tri-Oval oxidation ditch provides unsurpassed wastewater treatment process control and design flexibility plus the cost savings benefits of lower construction costs and low maintenance. The system’s Aire-O2 Triton process aerators/mixers drive fine bubble aeration to 33-ft deep and insure complete mixing throughout the treatment volume. Biological nutrient removal is facilitated using the dual functionality of the Triton aeration units. Turn down capability and the ability to independently regulate aeration and mixing provide for more flexible equipment control for energy conservation.