The FRC PWL series dissolved air flotation (DAF) system is an open tank, low-built design optimized for treating wastewater heavily loaded with solids. The PWL DAF provides the large amount of free surface area required for flotation and separation in these applications.

DAF systems can be used to effectively remove Total Suspended Solids (TSS), Fats, Oils, and Grease (FOG), Biological Oxygen Demand (BOD), Chemical Oxygen demand (COD), and other pollutants from wastewater. Open style units are particularly proficient for high solids concentration and can be built wider and longer as the free separation area requirement increases.