Rio to invest in Pilbara desalination plant

2nd June 2023 By: Esmarie Iannucci - Creamer Media Senior Deputy Editor: Australasia

Rio to invest in Pilbara desalination plant

Photo by: Bloomberg

PERTH (miningweekly.com) – Major Rio Tinto on Friday announced plans to invest $395-million in a seawater desalination plant in the Pilbara to support future water supply for the company’s coastal operations and communities in the region.

The proposed Dampier Seawater Desalination Plant, which remains subject to Commonwealth and state government approvals, will be located within Rio’s existing iron-ore port operations at Parker Point. It will have an initial nominal capacity of four gigalitres a year, with the potential for this to increase to eight gigalitres in the future.

The project includes construction of a new supply pipeline to connect to the existing water network.

Rio said on Friday that subject to relevant approvals, construction is expected to commence in 2024 with the facility expected to be operational and producing water in 2026. At the peak of construction, the project is expected to support approximately 300 jobs.

Water from the plant is planned to be transferred to the Water Corporation-owned and operated West Pilbara Water Supply Scheme, where it will be distributed to Rio’s coastal communities and operations.

The plant will be constructed on previously reclaimed land and will use reverse osmosis to filter salt and other impurities from ocean water. It will utilise existing infrastructure at the company’s Parker Point operations and is near the existing Water Corporation network, helping to minimise disturbance to the local environment.

“We know that water is a scarce resource, particularly in the Pilbara. We are pleased that this desalination plant will help to secure future supply for Rio Tinto-supplied communities in the West Pilbara as well as our coastal operations,” Rio Tinto iron-ore CEO Simon Trott said.