DAF Pumps Without Compressor Or Air Saturation (Pressure) Vessel
The EDUR multiphase pump can replace the compressor, air saturation vessel, complicated controls and standard centrifugal pump on a dissolved air floatation [DAF] system. This has the potential of greatly reducing capital costs, maintenance costs and general running costs of a DAF system.
Multiphase pumps supply liquid-gas mixtures and enrich liquids with gases, such as air, oxygen or ozone. They enable the supply of up to 30% gas proportions. They are available in a variety of construction styles and materials, such as grey cast iron, bronze or stainless steel as well as with various shaft seal systems and drive solutions.
Exclusive to Hydro Innovations
Hydro Innovations is also proud to be the EDUR Pumps distributor in Australia. Also with a long history, dating back to 1927, EDUR engineers design high quality specialist pumps for niche applications. One of these is their line of multiphase pumps, which have proven to be very effective in DAF installations. EDUR do not stock pumps, as each pump is built to customer requirements from components they hold in inventory. This way, customers get the right solution every time.
Simple Is Best
Removing components from a system, makes them simpler to operate and maintain. An EDUR multiphase pump replaces not only the centrifugal pump of a DAF system, but it removes the need for a compressor, air saturation [pressure] vessel, and the complicated controls that “conventional” systems use. The EDUR pump draws in atmospheric air with the water it takes from the DAF plant, mixes them, and forces the air into solution in the return pipe system. When the air comes out of solution because of the reduced pressure in the DAF tank, millions of 30-50 micron bubbles are formed, transporting oil, fat and grease to the surface for collection.
Lower Costs
Installing an EDUR pump with a new installation can certainly provide a lower installation cost because no air saturation vessel or compressor is needed, nor is the extra piping and control components these devices require. But even those retrofitting an EDUR pump get to save on maintenance and energy costs. No compressor to run and maintain or maintenance contracts, no pressure vessel to maintain and have re-certified on a regular basis, and only simple [on/off] controls.
Set And Forget Reliability
Because the EDUR system has much fewer components, there is much less that can go wrong to interrupt the collection of fats and grease from the wastewater.
Set the throttling valves once, then it is “set-and-forget”. Just an on/off switch and the system delivers every time. There is no compressor to let you down or not enough time in the pressure vessel, controls out of sinch etc.
There is therefore a better chance that effluent leaving the system will deliver the performance expectations you are looking for.