Dissolved Air Flotation Unit for Grease and Oil Removal

Dissolved Air Flotation systems effectively remove TSS, FOG, and other pollutants from wastewater. Conceptually, the DAF process is simple – tiny bubbles attach to solid contaminants causing them to float and then sludge is skimmed off the surface of the water – but designing a DAF system for a real-world application isn’t quite as simple.

FRC has removed layers of complexity from DAF system design by engineering units for specific applications and flow ranges. That means the DAF used for a soap manufacturing facility is not the same one used for a vegetable processing plant. Each process has its own unique challenges, so each receive its own unique solution. That’s the engineered approach FRC takes for all DAF process and equipment design.

Wastewater is fed into a DAF system and hit with a stream of “whitewater”, which is recirculated clarified water from the DAF that’s super saturated with dissolved air. As these two mixtures blend together, microscopic bubbles attach to solid particulates, giving them enough buoyancy to surface in the DAF tank.

As solids accumulate in a floating layer on the top of the DAF tank, a skimmer gently nudges the sludge toward a discharge hopper.

Any solids that don’t float will sink to the “V” bottom of the DAF tank. Settled solids are concentrated and discharged by an automatically controlled pneumatic drain valve.

The clarified water flows out via an under-over weir on either side of the DAF unit. Some of this water is used in the recirculation loop while the rest flows out of the vessel.

• Dissolved air pump edge bibulous the edge is inspiratory, pump pressurized mix within, gas to liquid efficient dissolving, small bubbles than 30 um.
• Low voltage operation, the dissolved gas efficiency is as high as 99%, release rate as high as 99%.
• Tiny bubbles and suspended particles of efficient adsorption, improve the SS remove effect.
• Dissolved gas water dissolving efficiency 80-100%, than traditional dissolved gas floating high efficiency three times.
• Pressure-capacity curve smooth, easy to achieve automatic control, easy to operate, easy maintenance, low noise.

Qingdao Yimei Environment Project Ltd. is found in 1988.We are located in the largest port city-Qingdao China. Our factary take up 36,000 square metres and there are more than 130 kinds machine for manufacturing. As a member of Shandong Province Environmental Protection Industrial Association, we have 360 staff and  72 experienced engineers.

Our main product is the equipment for Environment Protection and Waste Water Treatment.And the product is popular all over the world,such as Africa, North America,Domestic Market,Eastern Asia,Mid East.