DAF is designed to mainly remove fats, oils and grease (FOG), suspended solids (TSS), parts of biological oxygen demand (BOD) and chemical oxygen dem and (COD) that hard to be dissolved in water and other pollutants from waste water. The process is simple - tiny bubbles attach to solid contaminants causing them to float and then sludge is skimmed off the surface of the water - but designing a DAF system for a real-world application isn't quite as simple.
DAF dilssolved air flotation is mainly used in the following aspects paper-making effluent processing and fiber recovery, wasterwater treatment in printing& dyeing; the treatment of wastewater with heavy metal ions, like electroplating wastewater; oily wastewater treatment; wastewater treatment in tanning, chemical and painting industry; solid and liquid separation of wastewater from food industry.
Access platforms with ladder or stairs Automatic sludge pump out packages Chemical pretreatment systems Concrete tank designs for large in ground installations Duplex systems for redundancy Effluent monitoring Effluent sampling Explosion-proof design Flash mix/flocculation tanks with mixers Full FRP or stainless steel construction Influent equalization Influent / effluent lift stations Instrumentation and controls Removable covers with gaskets Integral mechanical sludge thickener On board reagent storage (day tanks) Pilot size units for on-site testing Potable water design Special coatings Sludge handling and dewatering
Dissolved Air FlotationApplications
Paper-making waste water treatment for fiber recycling.
Paint, printing and dyeing waste water treatment for color reduction.