Dissolved Air Flotation (DAF)
Waste Water Treatment

What is it?

Dissolved Air Flotation (DAF) units are engineered to remove a wide range of solids and hydrocarbons. They are engineered to efficiently remove suspended solids, fats and oils, BOD, COD and heavy metals from a wide variety of water and wastewater sources.

Our systems are pre-engineered, pre-assembled and factory tested minimising site installation and start up time. Simple connections and easy to set up controls make these units ready for quick on-line service.

The Dissolved Air Flotation units emit minute air bubbles which bid with the oils and fats, precipitated metals and suspended solids increasing their ascending ability. This results in a floating sludge layer that can easily be removed by a mechanical scraper. A motorised scraper system then scrapes the waste into a waste tank for disposal.



DAF Applications

DAF system or Dissolved air flotation is widely used in treating industrial wastewater from a growing number of industries and applications like:

  • Oil refineries
  • Petrochemical and chemical plants
  • Natural gas processing plants
  • General water treatment
  • Food processing
  • Meat processing
  • Fish processing
  • Dairies
  • Cheese processing


  • Containerized
    DAF Unit
    DAF Scrapper
    DAF System
    DAF
    Chemical Dosing

    Sedimentation Dissolved Air Flotation (SDAF)

    Sedimentation Dissolved Air Flotation (SDAF) is an advanced DAF system. Our SDAF systems are designed to combine dissolved air flotation with high rate sedimentation to efficiently remove suspended solids, fats and oils, BOD, COD and heavy metals from a wide variety of water and wastewater sources.

    SDAF Advantages & Applications


    Dissolved Air Flotation by itself has several process advantages over sedimentation – it can produce better water quality. It can be operated at high surface loadings so we can have plants with relatively small footprint. It can also be started up quickly, with a steady water quality being achieved in a relatively short period of time. The solids concentration of the sludge produced is higher than that of sedimentation. Our SDAF is therefore designed to not only merge the sedimentation process with the advantages of Dissolved Air Flotation, it is also engineered to achieve a smaller footprint and more efficient functioning of the treatment process itself.

  • Oil refineries
  • Petrochemical and chemical plants
  • Natural gas processing plants
  • General water treatment
  • Food processing
  • Meat processing
  • Fish processing
  • Dairies
  • Cheese processing
  • Sea Water desalination
  • Activated Sludge systems


  • CONTACT US


    How can we help?

    Please feel free to send us a message and we'll find the best solution for your needs


    • info@biosfera.com.au
    • Australia +61 466 971 186
    • Peru +51 993 331 925
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