Inventory - DAF Systems, Belt Presses
R-75 PACKAGED DAF
500 GPM
WSI is currently fabricating three R-75-OG DAF systems. These units are skid mounted to allow rapid deployment to field. Each skid contains everything that is required for treatment, including; a feed pump, polymer system, effluent pumps, and controls.
What's Included
500GPM Influent Pump, Dual 500GPM Effluent Pumps, Dual KTM65S DAF Pumps, Dual Sludge Discharge Pumps, Heavy Grit and Solids Pump, Nitrogen Conversion System, 80 Gallon Air Compressor, Level Sensors, Influent Flow Meter, Polymer Batching System, Chemical Metering Pump, Chemical Flow Meter, Integrated Controls, 4G Communication Equipment
R-50 TWO STAGE DAF
300 GPM
The R-50OG DAF Unit is designed to handle flows up 300GPM. This unique DAF has two zones that can be used for oil separation or various chemical processes.
R-15 SINGLE STAGE DAF
50 GPM
This compact unit is the ideal DAF to demonstrate the process capabilities for a larger system. WSI’s DAF (dissolved air floatation) unit, is the best way to separate solids, fats, oils, and greases from a process stream.
The R-15 is designed to fit into trailers and tight spaces for testing purposes.
About Dissolved Air Flotation (DAF) Technology
The DAF unit acts to remove the suspended solids (TSS) from the wastewater source. The DAF pump recirculates DAF effluent and flash mixes it with ambient air (aspirated on the suction side of the DAF pump). The air dissolves into the effluent under the pressure of the pump.
The air-water solution is then passed through a saturation tank to allow additional time for the air to dissolve and to remove any coalesced air bubbles. The solution is then expanded across diaphragm control valves leading into WSI’s proprietary diffusers inside the body of the DAF. By reducing the pressure of the solution rapidly (expanding), the dissolved air is forced out of solution in the form of micro-bubbles (90% of the bubbles formed are less than 10 µm in diameter).
The small bubbles collect under the biomass floc and float it to the surface, forming a thickened sludge blanket on the surface of the DAF that is raked directly into a sludge holding tank. The DAF provides greater thickening of the sludge as well as a reduced footprint from a conventional clarifier. Settled sludge is periodically pumped to the sludge holding tank via a Seepex progressive cavity pump.