Daf Drinking Water Treatment

The dissolved air flotation daf process mixes a clarified stream from the outlet of the unit with air at 3 9 bar to produce a supersaturated compared with saturation at atmospheric pressure solution of air in water.

Daf drinking water treatment. Kwi group is the global leader in delivering dissolved air flotation daf for water and wastewater treatment systems for industrial and municipal applications. Daf can be effective in treating algae bloom or red tides when overproduction of algae discolors surface water and sometimes contaminates it with toxins. Since 2003 a full scale dissolved air flotation daf process has been operated by the korea water resources corporation k water in the songjeon drinking water treatment plant swtp. Dissolved air is the most common type of flotation gas used in potable water treatment.

Dissolved air flotation daf is a water treatment process designed to remove oils solids and greases. The process was first used in scandinavia and south africa and over the last 25 years has seen increasing and widespread use around the world. Dissolved air flotation daf is a proven and effective physical chemical technology for treating a variety of industrial and municipal process and wastewater streams. Since 2000 more than 50 drinking water treatment plants wtp in north america have used daf with capacities ranging from 0 5 mgd to 290 mgd.

Daf is an alternative clarification process that uses micro air bubbles to attach and float flocculated particles and suspended solids to the water surface for removal see fig. Product recovery and reuse. Dissolved air flotation daf has been used to treat drinking water supplies for over 45 years. Dissolved air flotation daf is an alternati ve process for solid liquid separation whereby particles are removed by means of their attachment to air bubbles.

Dissolved air flotation daf is a water treatment process that clarifies wastewaters or other waters by the removal of suspended matter such as oil or solids. In fact the process helps clarify wastewaters and other waters by eliminating different types of suspended matter. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin. With more than 4 700 installations in 77 countries kwi excels in industrial waste water treatment biological treatment process and potable water applications.