Algae-based technologies for improved environmental outcomes and sustainable post-mining futures

The Challenge 

To use algae to turn mine water and waste into tools for clean‑up, carbon reduction and lasting post‑mining opportunities for communities and industry. 

Key Findings 

Algae can safely grow in many mine‑affected waters and be used to treat contaminated water, capture carbon and stabilise mine waste.  

Further, algae can support dust control, soil recovery and faster rehabilitation, while producing useful products such as bio-fertilisers and bioproducts.  

Together, these findings demonstrate a practical pathway to turn ongoing mine liabilities into sustainable environmental and economic assets. 

Benefits to WA 

Algae based technologies help reduce mine closure costs by improving water treatment and stabilising mine waste, which are major cost drivers in rehabilitation. For example, algae can remove contaminants and increase pH in mine water, reducing reliance on chemicals.