The Aire-O2 Bio-ffilm fixed film media system offers a cost-effective solution for wastewater treatment facilities that need upgrades to increase plant capacity and performance by providing year-round nitrification. The submerged proprietary geo-textile media process provides surface area for biomass growth and is paired with Aire-O2 Triton process aerators to create treatment “arrays” of mixing and aeration for solids suspension, nutrient transfer and oxygen diffusion.