Research Keyword: acid mine drainage

The effect of calcium on the removal of Cd2+ in the formation of biogenic secondary iron minerals

Acid mine drainage from mining operations contains toxic cadmium that pollutes water supplies. This research shows that naturally occurring bacteria (Acidithiobacillus ferrooxidans) can help remove cadmium by forming iron minerals. Adding calcium and potassium ions together significantly improves this process, with cadmium being trapped in mineral precipitates rather than just adsorbed to surfaces. This biological approach offers a practical and sustainable method for treating contaminated mining water.

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Roles of mobile genetic elements and biosynthetic gene clusters in environmental adaptation of acidophilic archaeon Ferroplasma to extreme polluted environments

Scientists discovered how a special acid-loving microorganism called Ferroplasma survives and thrives in highly polluted mine drainage environments rich in dangerous heavy metals. The study revealed that these microorganisms use special genetic elements like jumping genes and metabolite-producing genes to adapt to these extreme conditions, enabling them to help clean up pollution. This discovery could lead to better biological methods for treating contaminated environments and making water safer near old mining sites.

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