期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 10, 期 5, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.108533
关键词
Acid mine drainage; Cobalt Manganese; Precipitation Ligand Ozone
资金
- Leonardo Technologies, Inc., USA (under USDOE) [DE-FE0022594]
Acid mine drainage (AMD) has been identified as a viable secondary resource for cobalt (Co) and manganese (Mn). However, the recovery of these elements from AMD is challenging due to unfavorable pH and Eh conditions. This study found that ozone was the most effective agent for the recovery of Co and Mn from AMD. Based on the results, an AMD treatment process was developed for the selective recovery of multiple critical elements.
Acid mine drainage (AMD) has been identified as a viable secondary resource of Co, and Mn. However, recovery of these elements while treating AMD is challenging due to the unfavorable pH and Eh conditions for Co-Mn precipitation. This study investigated the effects of various ligands (hydroxide, carbonate, ammonium, sulfate, and phosphate) and oxidizers (sodium persulfate, potassium permanganate, and ozone) on the precipitation of Co-Mn from AMD through experimental and solution chemistry studies. Ozone was found to be the most effective agent for the recovery of these elements. Based on the results, an AMD treatment process was formulated for selective recovery of multiple critical elements, including Al, REEs, Co, and Mn. More than 95 % of Co and Mn were recovered through the proposed process utilizing chemical-less ozone oxidative precipitation. A precipitate containing 0.9 % Co and 54.6 % Mn was obtained from an AMD source containing 0.9 ppm Co and 41.8 ppm Mn.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据