Growing populations and climate variability increase pressure on wastewater systems and freshwater supplies. Advanced Water Recycling (AWR) helps utilities recover water resources while reducing environmental impacts and supporting long-term water security. This approach strengthens resilience by creating reliable, rainfall-independent water supplies and protecting natural ecosystems. Read how the Upper South Creek Advanced Water Recycling Centre addresses these challenges through advanced wastewater treatment, recycled water production, and environmental flow releases.
Treatment Technology
AWR uses multiple treatment barriers to convert wastewater into high-quality recycled water for suitable end uses. Treatment trains commonly combine biological treatment, membrane filtration, reverse osmosis, and additional disinfection processes. Each stage removes different contaminants to improve water quality and reliability. This multi-barrier approach allows recycled water to meet strict performance requirements for approved non-drinking applications while supporting environmental protection.
Resource Recovery
Modern AWR facilities operate as resource recovery systems rather than conventional wastewater treatment plants. In addition to producing recycled water, they can recover energy, nutrients, and biosolids from wastewater streams. These recovered resources reduce waste disposal requirements and create opportunities for beneficial reuse. The circular approach improves operational efficiency while lowering demand for finite natural resources.
Water Security
AWR strengthens water security by providing a dependable supply that does not rely on seasonal rainfall. Recycled water can support residential, commercial, industrial, agricultural, and landscape irrigation demands where regulations permit. Using recycled water for appropriate non-drinking purposes reduces pressure on potable water supplies. Environmental water releases can also help maintain river health and aquatic ecosystems when managed under approved frameworks.
Infrastructure Integration
Successful AWR systems require coordinated infrastructure that connects treatment facilities with distribution networks and receiving environments. Pipelines, pumping systems, storage assets, and monitoring programs ensure recycled water reaches intended users or environmental discharge locations safely. Regulatory oversight, environmental monitoring, and operational controls support compliance throughout the system. Integrated planning also allows infrastructure to expand as population growth increases wastewater volumes and recycled water demand.
Case Study: Upper South Creek Advanced Water Recycling Centre
The Upper South Creek Advanced Water Recycling Centre in Kemps Creek is being developed by Sydney Water to support population and economic growth across Western Sydney. Construction commenced in August 2023 following State and Commonwealth approvals earlier that year, with completion expected in 2026. The project underwent an Environmental Impact Statement process during 2021 before public exhibition and regulatory assessment. The initiative operates under State and Commonwealth approval conditions and Environmental Protection Licence 21800, supported by construction environmental management plans, monitoring programs, and compliance reporting.
The project includes an advanced water recycling centre, a pipeline that transfers treated water to the Nepean River at Wallacia, a brine pipeline connecting to the existing wastewater network at Lansdowne, and associated infrastructure. The facility uses a membrane bioreactor together with reverse osmosis to achieve high-quality treatment. Treated water is intended for a range of approved non-drinking uses in homes, businesses, industry, agriculture, and public open spaces. High quality treated water will also be released to the Nepean River to help sustain river ecosystems.
The facility is designed with an initial treatment capacity of up to 35 megalitres of wastewater per day, while associated pipelines are sized to accommodate future expansion to 70 megalitres per day. Sydney Water states the wider system is intended to support approximately 400,000 people by 2056. Additional implementation mechanisms include a 4-megawatt solar farm targeting 50 percent energy self-sufficiency, production of biosolids for agricultural use, environmental monitoring, independent compliance audits, and ongoing regulatory oversight. Together, these measures support sustainable wastewater management, environmental protection, and long-term regional resilience.
Take-Out
AWR combines robust treatment technologies, integrated infrastructure, and regulatory oversight to improve water security, recover valuable resources, and strengthen environmental resilience while supporting future urban growth.