DAF systems are used in separating oil and particles in the wastewater. They are based on the principle of injecting wastewater air under a certain pressure to float oil in microbubbles and eliminated from the system by means of automatic scrapers peeling.

The primary objective of a DAF system is to reduce Chemical Oxygen Demand (COD) loading by the removal of high contaminants including fats, oils and greases, colour, organic matter and colloidal material. A reduction of up to 90% of COD and suspended solids can be achieved. The wastewater system can be used with or without the addition of chemicals depending on the waste type, chemicals can further enhance performance.

These units designed by Tes Water Group's experienced engineer staff, usually made of epoxy coated carbon steel. Can be fabricated from hot dipped galvanized and stainless steel as well.

Wastewater treatment plants have many applications such as slaughterhouses, meat processing and packing plants, fish farms, oil production facilities, canning factories, industrial kitchens, soap manufacturers, cosmetics manufacturing plants and the petrochemical industry.