Dissolved air flotation (DAF) provides thickening of sludges (i.e. thickens the sludge) by encouraging the solids to float to the surface, rather than allowing them to sink as in gravity thickening.

DAF is applied to increase the sludge solids concentration when these solids are neutrally buoyant (i.e. neither sink nor float) and so cannot be readily removed by settling. 

• Remove oil, fat, grease, and suspended solid from waste water and oily water
• Different feed capacities; 0.5 to 1000 m³/h
• Main reactor made from stainless steel or coated concrete
• Complete system included coagulant and flocculate preparation unit, mixing units, instrument and PLC automation
• Low consumption of coagulants and flocculants
• Reduction of oil and TSS to 3% to 15% of initial feed amount