An industrial precinct that contributes $20 billion annually to the national economy is set for a boost as the nearby Kwinana water recycling plant undergoes an $81 million overhaul.

Having supplied almost 17 million litres of recycled water per day since 2004, the facility will increase its output by a further 10 million litres a day, with a 25-year extension to its service life.

The plant uses advanced microfiltration and reverse‑osmosis technology to treat wastewater and produce high‑quality recycled water for industrial and cooling uses. Increasing recycling capacity will reduce pressure on groundwater and scheme water while lowering costs for industry.

The project will help unlock fast‑growing sectors in the Kwinana industrial precinct and beyond, such as green iron and steelmaking, battery mineral processing, and fuels and energy. The initiative also supports Water Corporation’s long‑term recycling goals and the WA Government’s broader sustainability strategies.

The first phase of the project, which is being delivered by Australian contractor BMD Constructions, is nearing completion. The second phase will commence in July and involve the construction of a 3km supply pipeline.

“As one of the world’s largest exporters of critical minerals for battery production, and an emerging hub for green iron and steelmaking, Kwinana is positioned to become a major player in global decarbonisation,” WA Premier Roger Cook said.

“With water essential to these industrial processes, this expansion will help attract new investment to one of Australia’s most productive industrial precincts, underpinning economic growth and supporting thousands of Western Australian jobs.”

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