Over 2500 HUBER QPRESS rotary screw presses have been installed worldwide in hundreds of different applications.
Just about every type of wet sludge is currently being successfully dewatered in HUBER QPRESS rotary screw presses including aerobic, anaerobic, primary, chemical, or a combination of these produced by both industrial trade waste plants and municipal sewage treatment plants.
In 2016, Hydroflux Industrial installed a HyDAF Dissolved Air Flotation system at an abattoir in SE Queensland. The HyDAF system was designed to remove fats from the abattoirs red stream – which it is doing successfully without any chemical addition. With several ML of wastewater being treated per day, the volume of fat sludge removed by the DAF is significant, so a means of reducing the free water content was investigated to reduce disposal costs.
Hydroflux Utilities conducted test work using several new HydraBond flocculants specially formulated to work with high fat laden waste streams. These tests were successful with only a low dose of polymer and no other chemical conditioning being required. It was concluded that utalising this specific flocculant the HUBER QPRESS would be able to provide a high volume reduction in the sludge and subsequently the system was installed and successfully commissioned in early 2018.
The results were outstanding, with the HUBER QPRESS rotary screw press generating a spadable cake with dry solids concentration well in excess of 25%, excellent solids capture and a clear filtrate.
Photos from left to right: Jar testing. Installed screw press and conveyor. Dewatered sludge discharging from the screw press. Screw press filtrate. Spadable cake.
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This installation demonstrates the HUBER QPRESS’ unique ability to even dewater sludge with a high fat content whilst producing a dry cake and is one of many reference sites where Hydroflux have successfully applied the HUBER QPRESS to industrial applications. The HUBER QPRESS uses 90% less energy compared to a traditional centrifuge which results in exceptionally low power and maintenance costs. It also uses a fraction of the washwater and has a higher capture rate than traditional belt presses.
About the Hydroflux Group
The Hydroflux Group comprises eight companies based in Australia, Fiji and the UK, providing design and build, equipment, processes and operational services in water and wastewater treatment. 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. Hydroflux Utilities is a member of the Hydroflux Group.
24 April 2018
Hydroflux Utilities Pty Ltd
Level 26, 44 Market St. Sydney NSW 2000 Australia
P +61 2 9089 8833 F +61 2 9089 8830