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Dissolved Air Flotation

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. 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. The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device.

Principle

The DAF Separator provides effective separation of suspended solids, fats, oils and greases from liquids by dissolved air flotation. Flotation of the solids is accomplished by the introduction of tinny air bubbles into the process water. As the bubbles rise, they attach themselves to the particales in suspension and carry them to the surface for removed.

Advantages

● Overall specialized, compact structure, and high performance.
● Huge markets ,high maturity, stable performance and reliable operation.
● Hydraulic load: 4~ 6 m3 / (m2h).
● Maximum inlet SS concentration is 3000 mg/L.
● Automatic scum remoual, solid content can be up to 30 ~ 100 mg/L.
● Applied for the wastewater with suspended solids & floc density lighter than wateror close to the water and weak precipitation phenomenon.

Parameters
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