The construction of an innovative nutrient removal plant at Melbourne Water’s Western Treatment Plant in Werribee is now complete and will significantly benefit Melbourne’s Port Phillip Bay.

The new 140 ML per day Nutrient Removal Plant, which treats the water equivalent to 56 Olympic-sized swimming pools, improves the water quality in the Bay and also increases Melbourne Water’s ability to provide Class A water for offsite use.While the Western Treatment Plant has two existing nutrient removal plants - this new addition is more energy efficient and built with the latest advanced monitoring and controls. The Western Treatment Plant currently treats around half of Melbourne’s sewage.

Melbourne Water’s acting Manager of the Western Treatment Plant, Mike Smith, says the additional treatment capacity will support Melbourne Water in meeting the needs of Melbourne’s expanding population, now and into the future.

“Sewage is a valuable source of renewable energy and recycled water, and is contributing to our thriving wetlands”, Mr Smith said. “The Nutrient Removal Plant has been designed to minimise the carbon and energy consumed in treatment, enabling the Western Treatment Plant to continue to maximise renewable energy generation into the future”.

The $150 million project began in 2013 and uses cutting edge design and technology to benefit the community by mitigating the energy use required to treat sewage, improve the environment and deliver safe water for Melbournians.

Visit Melbourne Water for more about the Western Treatment Plant and the Nutrient Removal Plant.

Aerial shot of the Western Treatment Plant showing four large circular plants

The new Western Treatment Plant in Werribee, photo courtesy Melbourne Water.