VEOLIA WINS SYDNEY CONTRACT

VEOLIA WATER TECHNOLOGIES Australia has been contracted for the design, supply, and commissioning of 20 Hydrotech Drumfilters for mechanical primary treatment at two of Sydney Water’s treatment plants; St Mary’s Water Recycling Plant and Quakers Hill Water Recycling Plant. The upgrade is part of Sydney Water’s Lower South Creek Treatment Program.

The resource management company says with a move towards energy recovery and energy efficiency in wastewater plant design around the world, the first step of primary separation has become very important for two reasons – a higher TSS removal in the primary step reduces the load on the secondary treatment process (reducing power requirements and operating costs) and increased amounts of primary sludge entering the downstream sludge treatment or biogas recovery stages (such as digestion and/or thermal hydrolysis) will increase energy recovery.

This project continues the ‘excellent’ experience Veolia has gained over the last 10 years in utilising Hydrotech Drumfilters for primary separation. The small footprint technology allows excellent TSS removal (up to 80 percent for this project depending on influent wastewater quality) combined with the ability to cope with highly fluctuating flows in terms of both quality and capacity. The highquality stainless steel Hydrotech Filters combined with innovative robust PE filter panels guarantees an efficient, low maintenance, robust, and flexible primary separation step.

Sydney Water is Australia’s largest water and wastewater service provider. Every day, it supplies water, wastewater, recycled water, and some stormwater services to more than five million people in Sydney, the Illawarra and the Blue Mountains regions.