Supplemental Aeration

Aeration is used in water and wastewater treatment processes to deliver oxygen to microorganisms responsible for the biological oxidation of carbonaceous material and ammonia. Aerobic processes are used to degrade biochemical oxygen demand (BOD), chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN), and ammonia from water. One of the fundamental control parameters in aerobic processes is dissolved oxygen (DO). Many treatment processes lack sufficient DO due to excess loading, underperforming aeration systems or antiquated designs. Low DO levels encourage the growth of filamentous bacteria that can cause process upsets related to sludge bulking and foaming. Furthermore, low DO levels can result in poor treatment efficiency and lead to potential discharge violations. Adding additional aeration capacity can be complex and costly; however, the addition of Moleaer's nanobubbles can be used to supplement underperforming aeration systems by applying biologically available DO exactly where it is needed to support the biological process in quick, cost-effective and modular fashion.

Reduced Costs

Nanobubbles differ from the fine bubbles typically used for aeration because they do not rise to the surface and burst. Instead, they exhibit Brownian motion. They also rapidly transfer oxygen (or any interior gas) to water. Their rapid dissolution and Brownian motion provide efficient oxygen transfer throughout the water column independent of water depth. Additionally, studies have shown that a system aerated with nanobubbles can improve treatment efficiencies, providing more biological treatment per unit volume of bioreactor than a system aerated by fine or coarse bubbles alone.

Plug & Play

Moleaer's nanobubble technology is simple to install adjacent to an aeration tank without tying into or modifying the existing aeration system. Additional aeration capacity can be implemented within hours, without the use of heavy equipment or having to take basins offline. This is, in part, the reason why Moleaer nanobubble generators are rapidly becoming the preferred industry method to rapidly and efficiently supplement aeration.