AI Article Synopsis
- Acid mine drainage (AMD) is a significant environmental issue, prompting research into effective cover systems for tailings ponds.
- A study examined using tin tailings from Laili mountain to create a hard layer (HL) as an oxidation barrier in these ponds.
- Results showed that with 70% tailings waste, heavy metal immobilization exceeded 99.45%, and the leaching solution had a pH of around 10.8, indicating that HL is a promising approach for controlling pollution post-mining.
Article Abstract
Acid mine drainage (AMD) is a serious and persistent environmental pollution problem. At present, many studies have focused on the tailings pond's cover systems. This paper introduced the research results of using tin tailings from Laili mountain to make the covering layer of tailings pond. The first part included a detailed description of tailings characterization and acid production potential. On this basis, the hard layer (HL) was prepared and its feasibility as oxidation barrier was evaluated. It was found that when the proportion of tailings waste was 70%, the immobilization efficiency of heavy metals can reach more than 99.45%, and the pH of leaching solution was about 10.8. Moreover, the beneficial effect of solid waste addition on the HL was also verified. This suggests that HL as a post-mining restorative strategy has strong positive influence on pollution control.
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| http://dx.doi.org/10.1007/s00128-021-03372-8 | DOI Listing |
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