Setech Surface Aerator provide a powerful pumping action that transfer oxygen by breaking up the sewage into a spray of particles, creating more surface area for atmospheric pressure to drive oxygen into the domestic waste water. At the same time, the oxygen enriched water is dispersed and mixed.
Setech Surface Aerator also efficient circulators, drawing liquid from below and distributing it with intensive disturbance over the liquid surface. This positive circulation action is the reason for continuous, rapid and complete mixing which occurs in an aeration tank and which is fundamental to the success of the activated sludge method of treatment.