Wastewater recycling for component washing at Kariangau facility

In June 2024, a new water efficiency initiative was introduced at our Kariangau facility in Indonesia to promote sustainable water management practices. The project focuses on recycling industrial wastewater for component washing at the wash bay, reducing the reliance on clean water resources. The initiative aims to lower clean water consumption and reduce wastewater discharge to the environment by approximately 1–2m3 per month. From September until the end of 2024, the project successfully recycled 3,203 litres of wastewater, demonstrating an immediate and measurable impact.

Central to the recycling process is an activated carbon filter system to reduce turbidity and odour, ensuring that the recycled water meets the quality standards required for its intended use. By incorporating this filtration method, the initiative not only enhances water efficiency but also reinforces a commitment to sustainable industrial practices.