The Oaktree could help Rio Tinto with water contamination
AC systems (carbonation and absorption control systems) could potentially play a role in addressing some of the environmental challenges posed by mining activities at Rio Tinto, particularly water contamination. Mining activities often result in acidic and metal-laden runoff, a major environmental concern. Here’s how CAC systems might help:
1. Neutralizing Acidic Water (AMD – Acid Mine Drainage)
Mining often generates Acid Mine Drainage, where sulfide minerals react with water and air to produce sulfuric acid. This acidic water can dissolve heavy metals, causing significant pollution. CAC systems could:
- Capture CO₂ and use it to form carbonates that neutralize acidic water.
- React with the acidic mine runoff, precipitating metals and raising the pH to safer levels.
2. Heavy Metal Precipitation
CAC systems can promote the precipitation of dissolved heavy metals (like iron, copper, or lead) as insoluble carbonates. This would reduce the concentration of toxic metals in water systems downstream of mining operations.
3. Enhancing Alkalinity Through Carbon Sequestration
The carbonation process in CAC systems sequesters CO₂ and generates alkaline materials (e.g., calcium carbonate). When added to contaminated water, these materials can:
- Bind harmful ions.
- Stabilize sediments.
- . Improve water quality over time
