daf system aeration water treatment wastewater in america

daf system aeration water treatment wastewater in america
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  • What is dissolved air flotation (DAF)?
  • Dissolved air flotation (often abbreviated DAF) is water treatment process in which suspended solids, metals, and also particulate matter are removed to clarify the wastewater. The clarified water, resulting from the DAF treatment, can be reused or discharged to the sewer depending on the type of wastewater treatment.
  • What is DAF filtration?
  • DAF is a type of coagulation-flocculation technology typically used before filtration. DAF is used to separate solids from a liquid through the use of very fine air bubbles. These bubbles stick to the suspended matter — whether it’s algae, oil, or another contaminant — temporarily reducing its density.
  • Where are DAF systems used?
  • Our DAF systems are used extensively in markets where water reuse is essential such as mining, oil and gas production. The use of Evoqua's DAF technology in produced water has resulted in millions of gallons of water being recycled.
  • How does a DAF tank work?
  • A portion of the clarified effluent water leaving the DAF tank is pumped into a small pressure vessel (called the air drum) into which compressed air is also introduced. This results in saturating the pressurized effluent water with air.