Air flotation technology DAF Dissolved air flotation plays an important role in solid-liquid separation Simultaneously reduce COD, BOD, chroma. Firstly, mix flocculating into raw water and stir thoroughly. After the effective retention time, the raw water enters into the reaction zone where microscopic air bubbles adhere to the floc and then flows into the separation zone. Under the buoyancy effects, the tiny bubbles float the flocs to the surface, forming a sludge blanket. skimmer removes the sludge into the sludge hopper. Then the lower clarified water flows into the clean-water reservoir through the collecting pipe. Some of water are recycled to the flotation tank for the air dissolving system, while others will be discharged.
Short retention time.
Low purchase cost.
Low installation cost.
Minimum space requirement.
Thickened sludge consistency is 2 ~3 %
Easy maintenance and clean.
Dissolved Air FlotationAvailable Options
Access platforms with ladder or stairs Automatic sludge pump out packages Chemical pretreatment systems Concrete tank designs for large in ground installations Duplex systems for redundancy Effluent monitoring Effluent sampling Explosion-proof design Flash mix/flocculation tanks with mixers Full FRP or stainless steel construction Influent equalization Influent / effluent lift stations Instrumentation and controls Removable covers with gaskets Integral mechanical sludge thickener On board reagent storage (day tanks) Pilot size units for on-site testing Potable water design Special coatings Sludge handling and dewatering
Dissolved Air FlotationApplications
Poultry and slaughterhouses
Convenience food production
Oil and fat refineries
Industrial kitchens and canteens
Meat, fish processing and packing