DAGYEE Dissolved air flotation DAF systems application

DAGYEE Dissolved air flotation DAF systems application

Dissolved air flotation DAF systems are most commonly used in industrial

Common Industries:

Food processing

Textile industry

Paper mills

Meat processing

Oil refineries

Bakeries

Chemical plants

Other high-solids waste streams

Large-scale Dissolved air flotation DAF systems can also be used for municipal wastewater treatment

Sludge thickening

Algae removal

Solids clarification

Waste stream can be introduced to DAF untreated

Some manufactures claim as high as 85% solids removal

To aid in the efficiency of floatable particle formation, it is very common to chemically condition the wastewater prior to the DAF

Coagulant (inorganic, organic or blend)

Flocculant (anionic or cationic poiymer)

Solids removal as high as 98%

Removal efficiencies depend on many factors!

Design Factors/Considerations

Flow rate

Water Temperature

Waste characteristics

Chemical pre-treatment

Solids loading (lbs/hr/ft<)

Hydraulic loading (gpm/ft?)

Air to solids ratio (lbs of air/lbs of solids)