Daf Drinking Water Treatment

In addition to its use in drinking water treatment daf also is used for pretreatment in seawater desalination systems including as an add on for fluence s nirobox sw.

Daf drinking water treatment. The process helps clarify wastewaters by eliminating different types of suspended matter. Drinking water treatment drinking water supplies that are particularly vulnerable to unicellular algal blooms and supplies with low turbidity and high colour often employ daf. Drinking water industry until the early 2000s with the introduction of high rate daf technologies. Daf can be effective in treating algae bloom or red tides when overproduction of algae discolors surface water and sometimes contaminates it with toxins.

Daf dissolves air in pressurized water then releases it at atmospheric pressure. 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. The use of dissolved air flotation daf as a solids liquid separation process in water treatment has been an effective alternative to sedimentation for 70 years. Daf did not become widespread in the u s.

Dissolved air flotation daf is a water treatment process for removing oils solids and greases from a water supply. Dissolved air flotation daf is a proven and effective physical chemical technology for treating a variety of industrial and municipal process and wastewater streams. After coagulation and flocculation processes water flows to daf tanks where air diffusers on the tank bottom create fine bubbles that attach to floc resulting in a floating mass of concentrated floc.