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HUBER Dissolved Air Flotation Plant HDF

Wastewater treatment, product recovery and process water treatment through flotation with micro bubbles.

Process water is needed in many production processes as a solvent, for production of material, or for cleaning purposes. Water is recirculated and reused for economical and environmental reasons. Grease, oil, fat, floating and suspended solids, settling material, and dissolved components need to be separated to provide good and uniform water quality. Recovery of valuable product from the water may be another additional objective. In addition, clogging and excessive wear of pipelines and other associated equipment is prevented, which increases the operating reliability of the production plant.

Where used process water is discharged as wastewater, pre-treatment is often required to prevent toxic or otherwise harmful substances from entering the sewer system and reduce thus surcharges and fees. Conventional gravity clarifiers are often incapable to achieve sufficient pre-treatment. Various types of flotation processes have been developed, whereof dissolved air flotation with pressure water recirculation has proven most effective.

The HUBER Dissolved Air Flotation Plant provides a significantly improved flotation process with a special inlet structure that provides optimum control of the flow within the flotation tank.

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HUBER Dissolved Air Flotation Plants are successfully operated for a wide variety of industrial and municipal applications, such as:

  • Slaughterhouses
  • Meat processing and packing
  • Fish processing
  • Dairies
  • Convenience food production
  • Margarine production
  • Oil and fat refineries
  • Canneries
  • Industrial kitchens and canteens
  • Fast food providers
  • Soap works
  • Cosmetics industry
  • Textile industry
  • Chemical industry
  • Petrochemical industry
  • Iron and steel industry
  • Metal processing
  • Galvanizing, electroplating
  • Land remediation
  • Waste management
  • Municipal wastewater treatment


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