| Popis: |
Coal mining is a major source anthropogenic of sulfur oxides in the world and an important contributor to acid rain. In this process are produced high concentrations of potentially hazardous elements, that when exposed to weathering leached and flowed directly into the sea. Therefore, this work aims to verify the detailed leachate composition of rejects and ash coal from an abandoned sulphuric acid production plant. Leachate concentrations were determined using inductively coupled plasma atomic emission spectrometry, Inductively coupled plasma mass spectrometry, and high-performance liquid chromatography. The chemical characterization indicated highly toxic contaminants exposed to opencast, which favor bioaccumulation and the formation of secondary materials. Therefore, the work emphasizes the importance of listing these leachates due to the harm they cause to living beings and the ecosystem's disorder, thus corroborating for there to be more attention and correct destination for these tailings. |
