"Shown directly above is a pod of disc diffusers designed to be retievable, and to the left is one of Eco's fixed grid fine bubble systems. A variety of sizes of disc and tube diffusers are available, with membranes specifically designed for municipal or industrial wastewaters."
"For more details on fine bubble aeration, please click here"

Sequencer Tech has developed special techniques to achieve biological nutrient removal (BNR) using fine bubble aeration diffusers installed in particular configurations within its sequencing batch reactor (SBR) systems and in relation with uniform influent distributor and surface decanter.