5 m³/h Dissolved Air Flotation Unit for Wastewater Recycling

Product introduction of Dissolved Air Flotation Unit

The dissolved air flotation unit is a compact wastewater treatment system used for separating suspended solids, fats, oils, and grease from industrial and municipal effluents. It typically consists of a pressurized air dissolution system, flotation tank, scrapers, and sludge collection mechanism. Constructed from carbon steel or stainless steel materials, it is designed for continuous and automatic operation. The system addresses challenges such as high grease content, low-density particles, and unstable sedimentation. It is suitable for pre-treatment, polishing, and product recovery processes in various water treatment industries requiring reliable solid-liquid separation.

Working Principle

The dissolved air flotation unit operates by dissolving air into water under pressure and releasing it as micro bubbles in the flotation tank. These bubbles attach to suspended particles, fats, and oils, reducing their density and causing them to float to the surface. A mechanical scraper removes the floated sludge, while clarified water exits the system. This process enables efficient solid liquid separation even for particles with low settling characteristics.

Product Parameter Table

Capacity(m³/h)	5
Piping Connections(Inlet)	DN80
Piping Connections(Outlet)	DN80
Piping Connections(Sludge)	DN100
Piping Connections(Vent)	DN100
Physical Dimensions(m)	4×2.4×2.2/3×1.16×1.7
Weight(kg)	1600
Operating Weight(kg)	7000

Main Features

• High efficiency microbubble generation system ensures stable flotation and consistent solid separation performance
• Compact integrated structure reduces installation footprint while maintaining high hydraulic treatment capacity efficiency
• Fully automated operation system minimizes manual intervention and supports continuous industrial wastewater treatment processes
• Suitable for low and medium suspended solids wastewater with oil grease and colloidal contamination
• Factory prefabricated design reduces installation time and eliminates requirement for secondary welding work
• Automatic sludge and scum removal system improves operational stability and reduces maintenance workload significantly

Application Scenarios

• Industrial wastewater treatment for oil, grease, and suspended solids removal
• Food processing wastewater containing fats, proteins, and organic contaminants
• Municipal sewage pretreatment and biological system load reduction
• Chemical and petrochemical wastewater clarification and separation processes
• Paper, slaughterhouse, and textile wastewater treatment and reuse systems

FAQ

1. What pollutants can DAF remove?
It removes suspended solids, oils, grease, and fine colloidal particles effectively.

2. Is the system suitable for continuous operation?
Yes, it is designed for fully automatic and continuous industrial operation.

3. What is the typical sludge consistency?
The system produces thickened sludge with approximately 2 to 3 percent solids content.

4. Can it handle high grease wastewater?
Yes, it is widely used for wastewater containing high oil and grease concentrations.

5. What industries commonly use this system?
It is used in food processing, chemical, municipal, and industrial wastewater treatment sectors.

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