Dissolved Air Flotation (DAF) is mainly used for the reduction of FOG, BOD, COD, and suspended solids. The Corodex EfloDAF uses the principle of air flotation to separate contaminants from wastewater streams.

Contaminants such as emulsified oils and greases are first broken from suspension through coagulant dosing. A flocculant is then dosed to form larger particles, which are carried to the surface of the tank by the introduction of minute air bubbles.

The bubbles attach to the flocculated particles and float to the surface, forming a thick scum layer. This surface scum is scraped into a collection chamber, leaving a cleaner water discharge.

EfloDAF is a key process component in industrial water reuse systems, achieving significant oil and solids removal as well as reductions in COD and BOD.