A $73 million recycled water plant capable of producing 3.3 billion litres of water that is cleaner than rain water has been built at Mayfield in NSW.

The state of the art recycled water plant will supply water to Orica’s Kooragang Island site, reducing its use of drinking water by the equivalent of more than 12,000 homes annually. The Kooragang Recycled Water Scheme has been built by Hunter Water over four years and is the largest recycled water project ever undertaken in the region.

The plant delivers highly purified recycled water from the Steel River industrial estate to Orica’s Kooragang Island site via an 8 km pipeline that runs under the Hunter River.

NSW Minister for Natural Resources, Land and Water, Kevin Humphries, said the plant is the most significant step yet in the NSW Government’s efforts to drought proof the Hunter region.

“Water Wise Rules save the Hunter about one billion litres of drinking water a year. The Kooragang Recycled Water Scheme can triple those savings.”

“Until now, Orica has been the Hunter’s largest water customer, using five per cent of all water consumed in the Hunter at its Kooragang site, enough to fill around 1,300 Olympic swimming pools.”

“Orica has today switched the majority of its water needs from drinking water to recycled water. This will see them move from the position of the Hunter’s largest user of drinking water to barely inside the top 20,” he said.

Parliamentary Secretary for the Environment, Senator Simon Birmingham, said the Australian Government contributed $4.2 million towards the project as part of a grant to Hunter Water under the Water for the Future initiative.

“The Australian Government supports initiatives that drive investment in diverse water supply options, and encourages industry and the community to use water more efficiently.”

Hunter Water Managing Director, Kim Wood, said the recycled water being produced at the Steel River site is better quality than the equivalent of rain water.

“The water is so pure it is actually cleaner than what falls from the sky. It’s actually more pure than drinking water given it lacks dissolved salts and minerals.”

“The process of supplying water to Orica commences when raw sewage is treated at the Shortland Wastewater Treatment Plant. It’s then piped to the Steel River site where it is passed through microfiltration and reverse osmosis to ensure suspended solids, bacteria, viruses, and dissolved salts are removed.”

“With the environment front of mind, Hunter Water has also planted 300,000 trees to ensure the Kooragang Recycled Water Scheme is carbon neutral.”

“The project means eight percent of all sewage processed in the Hunter is now being converted to recycled water, and being sold to businesses such as Orica, power stations, dairy farms, and even golf clubs.”

Michelle is a freelance journalist and editor who, as well as covering all the latest and breaking industry news, is a gun proofreader and editor who never misses a trick.

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