Description
Dissolved air flotation Description
Oil Water Separator Wastewater Plant Treatment DAF Dissolved air flotation is an efficient flotation method for water clarification. The term refers to the method of producing flotation by dissolving air in the water under pressure and then releasing the pressure. When the pressure is released the solution becomes supersaturated with air as millions of small bubbles form. These bubbles attach to any particles in the water causing their density to become less than that of water. The particles then rapidly float to the surface for collection and removal, leaving the clarified water behind.
DAF dilssolved air flotation is mainly used in the following aspects paper-making effluent processing and fiber recovery, wasterwater treatment in printing& dyeing; the treatment of wastewater with heavy metal ions, like electroplating wastewater; oily wastewater treatment; wastewater treatment in tanning, chemical and painting industry; solid and liquid separation of wastewater from food industry.
Dissolved air flotation Feature
Oil content in outlet water can be reduced less than 1mg/L
Broken ring, broken chain, decolorization, deodorant, disinfection
No man need on duty
The skid mounted structure is available out-of-the-box
No polymer consumption, low cost of investment and operating
An efficient performance of solid and liquid seperation,whicn is from unique dissolved air and micro bubble manufacturing technology
Less water residence time
Instant power on and off
Dissolved Air Flotation Available 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 Flotation Applications
Paper-making waste water treatment for fiber recycling.
Paint, printing and dyeing waste water treatment for color reduction.
Chemical waste water treatment.
Food waste water treatment.
Oil refinery for separating oil and impurity.
