Supplementary material for the research on : Efficiency of thermally activated eggshells for acid mine drainage treatment in cold climate

Supplementary Material for the article entitled : Efficiency of thermally activated eggshells for acid mine drainage treatment in cold climate. The article presents the results of a research on thermally activated eggshells for the acid mine drainage (AMD) treatment in cold climate. It was found that eggshells efficiency depended on calcination temperature and on the solid : liquid ratio employed for the AMD treatment. For instance, eggshells calcined at 900⁰C succeded to neutralize an AMD of pH 2 and to reduce heavy metals below the concentrations limits legally accepted.

题为《寒冷气候下热活化蛋壳用于酸性矿山废水治理的效能》的文章的补充材料。该文章报道了寒冷气候下采用热活化蛋壳治理酸性矿山废水（acid mine drainage, AMD）的研究成果。研究发现，蛋壳的治理效能取决于煅烧温度以及酸性矿山废水治理过程中所采用的固液比。例如，经900℃煅烧的蛋壳可中和pH为2的酸性矿山废水，并将重金属浓度降至法定允许限值以下。