Aquatec Maxcon is Australasia’s leading supplier of aeration equipment with more than 46 years experience in the treatment of wastewater. We have manufactured more than 700 vertical shaft surface aerators giving us an unequalled installation list. Our firm utilises this unique base to deliver unrivalled experience in the design and manufacture of vertical shaft aerators suited to a wide range of
The AquaStar is the culmination of a three-year research and development effort, decades of field experience and ongoing development resulting in it being optimised for Australasian conditions. Modern computer-aided design has been employed to reduce the power consumption of the AquaStar while increasing oxygen transfer. Particular attention has been devoted to making the AquaStar effective and highly efficient over a wide range of power intensities. It is suitable for high rate processes as well as low rate applications. All installations are field-tested, providing our firm with unrivalled data and experience on transfer efficiencies in climates ranging from the tropics to alpine.
Our in-house manufacturing capability has ensured the design is optimised to deliver reliable long-term performance. Sophisticated strain gauge testing has been employed to ensure that the AquaStar delivers robust long term performance despite arduous field conditions. Many installations have remained in service for over 25 years.
The AquaStar vertical shaft surface aerator is available in a fixed bridge or floating configuration. Both configurations provide suitable access for maintenance and inspection. The floating configuration has a wide footprint and a low centre of gravity ensuring a stable and safe work platform capable of safely carrying all operational and service loads.
The design of the AquaStar impeller has been optimised to deliver not only superior oxygen transfer efficiency, but also the widest turndown range. Oxygen transfer can be reduced to 60% of the design maximum by simply varying the impeller immersion. This can be achieved without adversely impacting the oxygen transfer performance. Adequate mixing is able to be maintained at the lowest impeller operating levels. The impeller performance is also speed sensitive, enabling the use of variable frequency controllers to vary the oxygen transfer for fixed liquid level applications. This also enables the oxygen transfer turndown of variable liquid level installations to be further increased.
The AquaStar can be fabricated in galvanised or epoxy coated mild or stainless steel to suit the requirements of individual installations. The folded impeller has been designed to minimise welding and hence residual stress to ensure maximum life expectancy. It has eight blades to minimise pulsation, each with an upswept lower section, welded to a central shaft on the underside of the spray deflector disc. The impeller is non-ragging, even when operated in fluid containing fibrous material including unscreened sewage.
Floating surface aerators are subject to substantial dynamic forces which can lead to metal fatigue. Through our extensive research and development programme including extensive strain gauge testing, the AquaStar’s superior design ensures lasting reliability.
The AquaStar’s design characteristics include:
Additional AquaStar Options
Materials of Construction
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Operational materials and equipment include:
Aquatec Maxcon has over 46 years’ experience in treating water and wastewater for both municipal and industrial applications. A leader of the water industry, Aquatec Maxcon has introduced a range of innovative process technologies to Australia including the first UASB, IC Reactor, Membrane Bioreactor and Circox Reactor. We have a successful track record in introducing new technologies, and have diligently supported their implementation within Australian conditions.
Aquatec Maxcon Pty Ltd is part of the Aquatec Maxcon Group which provides a complete vertically integrated range of in-house services including: