A new study conducted by a team of South African chemists has identified a promising solution for cleaning up highly toxic waste from abandoned gold mines in Krugersdorp. The study proposes a combination of bioremediation techniques using plants and bacteria to tackle the problem of acid mine drainage.
The study suggests a two-pronged approach:
Phytoremediation: Using plants to absorb toxic metals from the soil.
cloSURE Technology: Employing anaerobic bacteria to remove metals and sulfates from the contaminated water.
This combination is seen as particularly effective for the Krugersdorp area due to the high sulfate and metal content of the acid mine drainage.
Furthermore, the study highlights the cost-effectiveness of these natural solutions compared to traditional, often expensive, and inefficient methods.
The researchers urge the South African government to invest in these technologies to protect the local community from the harmful effects of decades-old mine waste.
They emphasize the urgency of action, as children have been seen playing on the mine dumps, and people swim or even hold baptisms in local dams.