Dissolved Air Flotation (DAF)
Dissolved Air Flotation (DAF) is a highly effective wastewater treatment process that removes suspended solids, oils, greases, and other contaminants. It's widely used in industries such as oil and gas, food processing, and manufacturing.
How DAF Works
- Air Injection: Air is compressed and injected into a portion of the wastewater, creating a saturated solution.
- Pressure Release: The pressurized wastewater is released into a flotation tank, where the pressure drops. This causes the dissolved air to form tiny bubbles.
- Flotation: The bubbles attach to suspended solids and other contaminants, causing them to float to the surface.
- Skimming: A skimming device removes the floating solids from the water surface, leaving clarified water.
Benefits of DAF
- High efficiency: Effectively removes suspended solids, oils, and greases.
- Versatile: Applicable to various wastewater types and industries.
- Compact design: Requires less space compared to other treatment methods.
- Low sludge production: Reduces sludge handling and disposal costs.
- Improved water quality: Produces high-quality effluent suitable for reuse or discharge.
