5. Aerators (Fixed, floating) and Diffusers The aerators have high oxygen transfer efficiency. The radial blade impeller is designed to have self cleaning feature.

Aerators are used in biological treatment to convert organic matter into biological cell mass thereby reducing the BOD. The biological matter consumes dissolved oxygen for respiration and mechanical surface aerators are provided to replenish oxygen thus used up.

Diffused Aeration technology includes a major reduction in energy cost, significantly higher oxygen transfer rate & higher dissolved oxygen levels. Diffuse aeration system in which air is introduced in the form of very small bubbles to aid or enhance the treatment of waste water.