Versatile Stainless Steel DAF System Product Description The versatile stainless steel DAF dissolved air flotation system is an efficient and fast method for separating solid particles from various water and wastewater. Part of the treated wastewater is circulated into the dissolved air tank, where air is supersaturated and dissolved under pressure, then mixed with flocculant-added raw water at the flotation tank entrance. Due to pressure reduction, supersaturated air is