DAF, Dissolved Air Flotation

Dissolved Air Flotation (DAF) is a water treatment process used for the clarification of wastewater or other types of water by removing suspended matter such as oil or solids. It works by introducing fine air bubbles into the water, which attach to the particles and cause them to float to the surface, forming a layer of sludge that can be skimmed off.

The process typically involves several steps:

Coagulation/Flocculation: Chemicals are added to the water to help particles bind together, forming larger clumps that can be more easily removed.

Air Dissolution: Air is dissolved under pressure into the water. When the pressure is released, tiny bubbles form and attach to the particles.

Bubble Attachment: The bubbles attach to the suspended particles, increasing their buoyancy.

Floatation: The buoyant particles form a froth or foam layer on the surface, which can be mechanically skimmed off, removing the particles from the water.

Effluent Discharge: Cleaned water, now with reduced levels of suspended solids and other contaminants, is discharged.

DAF systems are commonly used in industries like wastewater treatment plants, food processing, pulp and paper, and mining, among others, where the removal of fine suspended particles is necessary for environmental or operational reasons.

DAF Price;

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