Continuous Operation DAF System for Effective Grease and Suspended Particles Removal in Wastewater Treatment

Dissolved Air Flotation (DAF) is an advanced water treatment process that effectively clarifies wastewater by removing suspended matter such as oil, grease, and solids.

The process involves dissolving air in water under pressure, then releasing it at atmospheric pressure in a flotation tank. This creates microbubbles that adhere to suspended particles, causing them to float to the surface where they can be removed by skimming.

1. Wastewater enters coagulation (RT1) and flocculation (RT2) reaction tanks from the equalization tank via lift pump

2. Water forms flocs through treatment with PAC and PAM

3. Treated water enters DAF tank reaction zone where microbubbles adhere to flocs

4. Buoyant particles float to surface for skimming while clean water collects below

5. Most water discharges while a portion recirculates to maintain dissolved air supply

• Microbubble generation for efficient particle capture
• Subsurface capture technology
• Automatic slagging controlled by liquid level
• High-efficiency non-clogging release mechanism

• Municipal sewage treatment
• Slaughterhouse wastewater
• Metallurgical industry wastewater
• Spraying and painting operations
• Printing and dyeing wastewater
• Metal-processing effluents
• Mining and stone processing
• Electronic manufacturing wastewater

To select the appropriate DAF model, please provide:

• Wastewater type (dairy, car wash, food processing, etc.)
• Suspended solids content (ppm or mg/L)
• Oil/grease/fat content (ppm or mg/L)
• pH level (6-9 preferred)
• BOD and COD levels (ppm or mg/L)