Optimizing Your DAF System With Air Dissolving Pumps
Achieving high-quality dissolved air with the Nikuni and AirWhip™ pumps.
The heart of any dissolved air flotation (DAF) system is the pump that dissolves air into the wastewater. This is because DAFs work by adding whitewater to the wastewater to create microbubbles that attach to the suspended solids, causing the contaminants to rise to the surface and be easily skimmed off.
Efficient flotation therefore depends on the quality of the dissolved air, making your choice of pump an important consideration in your DAF setup.
The Nikuni Pump
The Nikuni pump is a regenerative turbine pump that achieves over 95% saturation efficiency for 5- to 15-micron bubbles. This system performs three functions in one unit, simultaneously drawing in air and water, mixing the air and then dissolving the air with its turbine impeller. Thanks to its unique design, it is highly efficient at dissolving the air into water, creating highly pressurized and air-enriched whitewater.
Benefits
- High saturation efficiency and recycle rates.
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Consistent air flow and air-to-water ratio.
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Small bubble sizes — 20 microns or less.
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Better DAF performance and increased capacity.
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The elimination of costly compressed air systems.
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A 10-40 percent reduction in chemical requirements.
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Energy savings and a reduced carbon footprint.
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A compact size and small installation footprint.
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An ability to fit new and existing DAF systems.
The AirWhip Pump™
When integrated into DAF systems, our proprietary AirWhip Pump achieves efficient flotation, improving the quality of the dissolved air and allowing maximum adhesion to the floc particles. The system draws treated water out of the DAF’s influent chamber and then dissolves compressed air into the flow to send back to the DAF header box.
Benefits
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An ability to handle higher flows and loadings.
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Better DAF performance and increased capacity.
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Three layout options to fit new or existing DAF systems.
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Various material options for seawater or abrasive applications.
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Efficient power usage.
Help Me Select the Right Pump
While both the Nikuni and AirWhip can take your DAF system to the next level, you may be wondering which one to use.
For a deep technical dive into both pumps, download our application note. You can also contact us to learn which pump is best based on your application requirements.
Get Started With a DAF System Today
Interested in upgrading your wastewater treatment process without the hassle? Our large rental fleet allows us to deliver a WWW DAF™ system to you in less than three weeks. These rentals make commercial sense if you want to avoid long-term capital expenditure commitments and reduce installation, maintenance, repair and servicing costs.
Visit our rental page to get started.