english Dissolved Air Flotation Device
An efficient solution for oil removal from wastewater in various industrial applications
Working Mechanism
The device operates by dissolving air into water under pressure, creating tiny air bubbles when the pressure is released. These bubbles have a strong affinity for oil droplets in the wastewater; they attach to the oil particles, increasing their buoyancy and causing them to rise to the water surface.
Once at the surface, the oil-laden bubbles form a floating scum layer, which can be easily skimmed off, effectively separating oil from the water.
Oil Removal Efficiency
The device works well for both free oils and emulsified oils, though emulsified oils may require pre-treatment, such as the addition of coagulants, to break the emulsion and allow better attachment to air bubbles.
Bubble Size
Smaller bubbles provide larger surface area for contact with oil droplets
Device Design
Flow rate control and arrangement of bubble release points ensure thorough mixing
Oil Type
Both free oils and emulsified oils can be effectively removed
Industrial Applications
In industries where wastewater often contains high levels of oil, the device consistently demonstrates strong oil-removal capabilities, helping meet environmental discharge standards.
