Acidity-dependent mobilization of antimony and arsenic in sediments near a mining area
文献类型：期刊论文
| 作者 | Zhang, Di; Guo, Jianlong ; Xie, Xianjun; Zhang, Yunhua; Jing, Chuanyong
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-03-15 |
| 卷号 | 426期号:0页码:1-8 |
| 关键词 | SEQUENTIAL EXTRACTION MOBILITY SOIL WATER IMMOBILIZATION BEHAVIOR REMOVAL MINE TRANSFORMATION XIKUANGSHAN |
| ISSN号 | 0304-3894 |
| 英文摘要 | Coexisting antimony (Sb) and arsenic (As) have raised worldwide concerns, but the factors controlling the mobilization of Sb and As in sediments near mining areas are not fully understood. Herein, multiple leaching methods and complementary spectroscopic analyses were used to investigate the mobility of Sb and As and its controlling factors in sediments around the Xikuangshan tailings pond over a wide range of acidity. The general acid neutralizing capacity (GANC) test showed that the leachability of Sb and As exhibited a V-shape pattern with a minimum concentration at 1.6 eq H+/kg. The result of MINTEQ simulation agreed well with our GANC results, and demonstrated that the decrease of Sb and As in the range 0-1.6 eq H+/kg and the increase in 1.6-4 eq H+/kg were mainly controlled by the adsorption and dissolution of iron oxyhydroxide, respectively. Based on the Vshaped leaching trend, Sb and As were predicted to be immobilized in sediments when the acidity accumulated to 1.6 eq H+/kg for a long term up to 61 years. This study provides insights in assessing the leaching risks and predicting the mobilization of Sb and As in sediments. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47462]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 通讯作者 | Jing, Chuanyong |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 3.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China 4.China Baowu Steel Grp, Energy & Environm Protect Dept WISCO, Wuhan 430083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Di,Guo, Jianlong,Xie, Xianjun,et al. Acidity-dependent mobilization of antimony and arsenic in sediments near a mining area[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,426(0):1-8. |
| APA | Zhang, Di,Guo, Jianlong,Xie, Xianjun,Zhang, Yunhua,&Jing, Chuanyong.(2022).Acidity-dependent mobilization of antimony and arsenic in sediments near a mining area.JOURNAL OF HAZARDOUS MATERIALS,426(0),1-8. |
| MLA | Zhang, Di,et al."Acidity-dependent mobilization of antimony and arsenic in sediments near a mining area".JOURNAL OF HAZARDOUS MATERIALS 426.0(2022):1-8. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。