Over the last 60 years, Air Diffusion Systems (ADS) fine bubble aeration has been installed around the world to promote natural and biological treatment of lakes, lagoons, reservoirs, and other bodies of water. Bubbling from the bottom up, ADS diffusers recreate a river-like environment in bodies of water that lack oxygenation and mixing. Once elevated “bottom dissolved oxygen” levels are restored, beneficial bacteria and higher life forms consume organics and nutrients, purifying the aquatic eco-system naturally.
Not all Bubbles are Created Equal
There is a significant difference in the way larger "coarse" bubbles and smaller "fine" bubbles mix and oxygenate water. Fine bubbles need less energy to create and provide a larger surface area for oxygen transfer to occur. Coarse bubbles larger than 1/10” diameter are limited in their mixing capabilities due to the turbulent manner in which they move through water. The same amount of energy is required to produce a single 1” coarse bubble or a million 1/100” fine bubbles. ADS fine bubble aeration ranges from 1/8” to 1/64” in diameter, providing efficient quiescent mixing and unsurpassed oxygenation.
Independently Certified Using “ASCE” Oxygen Transfer Standards
ADS fine bubble aeration offers a superior oxygen transfer rate, which was independently tested and certified by former federal EPA Advisor, Dr. Michael Stenstrom. Three sets of tests were performed according to the testing procedures and standards developed by the American Society of Civil Engineers (ASCE). These independently verified results concluded that ADS fine bubble aeration delivers an oxygen transfer rate of ~ 3% per foot of water Standard Oxygen Transfer Efficiency (SOTE). This is twice as efficient compared with other diffusers and four to six times more efficient compared with static tubes, jet, or surface aerators.
ADS Fine Bubble Diffusers & Aeration
ADS fine bubble diffusers & aeration tubing is manufactured using virgin plastics containing more than 2% “carbon black” to prevent UV degradation. The aeration tubing contains microscopic air-releases located along the top and sides where the fine bubble are emitted. If the air supply is shut off, the air-releases act as a one-way check valve, preventing plugging or clogging of the aeration system. One of the key design features of ADS aeration is the built-in pressure drop. The 2 PSI pressure drop ensures that the fine bubble diffuser will work even if the bottom is not perfectly level. With an average lifespan of 15 - 20+ years, The ADS diffuser is the longest lasting and most efficient aeration device comercially available.
