Article | May 29, 2024

How To Optimize Your DAF System With The Right Air Dissolving Pump

GettyImages-1345400723 modern WWTP

Despite their importance in modern wastewater applications, not all dissolved air flotation (DAF) systems are created equal. Factors, such as the components that make up these systems, will influence how well they work and how long they last. One important DAF component to consider is the air dissolving pump. DAFs rely on the introduction of whitewater — a highly saturated and pressurized stream of air and DAF effluent — into the wastewater to create microbubbles. These microbubbles attach to the particles, lowering their density and causing them to rise to the surface. From there, the contaminants can be skimmed off and removed.

With these operating principles in mind, efficient flotation depends on the quality of the dissolved air, making your choice of pump an important consideration in your DAF setup. An example of a pump system that checks all the right technical boxes is the Nikuni pump — a regenerative turbine pump that achieves over 95% saturation efficiency for 5- to 15-micron bubbles.

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