Slide background The Hydroflux Group consists of eight specialist water and wastewater treatment companies.These integrated businesses undertake design and construction projects, and provide aftermarket services to the municipal, mining and industrial sectors
Slide background The Hydroflux Group of Companies is based around teams of water and wastewater treatment experts harnessing the power of world leading research and technologies for a more sustainable use of water, energy and resources. .
Slide background Our Industrial division has an in depth knowledge and understanding of ALL food and beverage processes which enables it to design wastewater treatment plants effectively. .
Slide background Hydroflux Utilities provides many forms of water or wastewater plant support programs including, regular service and preventative maintenance contracts, chemical and spares supply and operation contracts for both industrial and municipal customers.
Slide background Our engineers are fully conversant with the water generated during all types of construction work and have designed and implemented unique and cost effective methods of treatment and the associated sludge handling systems.
Slide background Hydroflux Epco – With over 50 years experience in municipal and industrial wastewater treatment plants our products include – Wastewater Clarifiers, Water Clarifiers , Sludge Digesters and Package Sewage Treatment Plants
Slide background Cress Consulting is a specialist business providing environmental and sustainability consulting services to industry throughout Australia.

High-Density Aeration Designs in Sewage Plants – An Essential Consideration

Sewage treatment plants in Australia consume some 1000 GWh per annum of electricity. In general, the energy demand is between 20 – 50 kWh per person per year.


Whilst the energy consumption of a sewage plant depends on the process – in general half of the power demand is used to drive the aeration process within the secondary treatment process.

Optimising the aeration system is key to reducing the sewage treatment plant’s energy consumption and carbon footprint. An efficient aeration system can save 30% or more power and associated carbon emissions.

Sewage plant owners and operators should also consider the use of high-density layouts in addition to selecting high efficiency diffusers.

Moving to a higher density reduces diffuser flux rates which increases energy efficiency as less air is required for the same net oxygen yield.

For example, AEROSTRIP® fine bubble diffusers can be arranged in grids that provide up to 90% floor coverage, however in practice moving from a floor density of say 12% to 25% can result in an additional 15 – 30% energy reduction.

Hydroflux Epco’s modeling software can quickly compare ‘like for like’ floor density against higher density layouts. This allows clients to understand the power and OPEX savings against increased CAPEX (ie Total Cost of Ownership).

Contact us on for further details.

About the Hydroflux Group
The Hydroflux Group comprises eleven companies based in Australia, New Zealand, Fiji and the UK, providing specialist design and build, equipment, processes and operational services in water and wastewater treatment and sludge treatment and dewatering. The Hydroflux Group are the exclusive Australian representatives for HUBER Technology, AEROSTRIP, CNP Technologies, Flootech MBBR, Dutch Spiral and Organica Water and incorporates EPCO Australia.

Hydroflux Pty Ltd
Level 26, 44 Market St. Sydney NSW 2000 Australia
P +61 2 9089 8833 F +61 2 9089 8830
[email protected]

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