Arsenic removal from alkaline leaching solution using Fe (III) precipitation
文献类型：期刊论文
| 作者 | Wang, Yongliang1; Lv, Cuicui1,2; Xiao, Li1,2; Fu, Guoyan1,2; Liu, Ya1,2; Ye, Shufeng1; Chen, Yunfa1 |
| 刊名 | ENVIRONMENTAL TECHNOLOGY
 |
| 出版日期 | 2019-06-07 |
| 卷号 | 40期号:13页码:1714-1720 |
| 关键词 | Arsenic precipitates ferric arsenate Fe As ratio leaching toxicity |
| ISSN号 | 0959-3330 |
| DOI | 10.1080/09593330.2018.1429495 |
| 英文摘要 | The alkaline leaching solution from arsenic-containing gold concentrate contains a large amount of arsenate ions, which should be removed because it is harmful to the production process and to the environment. In this study, conventional Fe (III) precipitation was used to remove arsenic from the leaching solution. The precipitation reaction was carried out at the normal temperature, and the effects of pH value and Fe/As ratio on the arsenic removal were investigated. The results show that the removal rate of arsenic is distinctive at different pH values, and the effect is best within the pH range of 5.25-5.96. The removal rate can be further increased by increasing the ratio of Fe/As. When the pH = 5.25-5.96 and Fe/As > 1.8, the arsenic in the solution can be reduced to below 5 mg/L. However, the crystallinity of ferric arsenate is poor, and the particle size is small, most of which is about 1 mu m. The leaching toxicity test shows the leaching toxicity of precipitates gradually decreased by the increase of Fe/As. The precipitates can be stored safely as the ratio of Fe/As exceeded 2.5. |
| WOS关键词 | CRYSTALLINE SCORODITE ; AQUEOUS-SOLUTIONS ; WATER ; COAGULATION ; STABILITY |
| 资助项目 | Key Projects in the National Science & Technology Pillar Program[2012BAB08B04] ; National High Technology Research and Development Program of China[2011AA06A104] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000466592300009 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | Key Projects in the National Science & Technology Pillar Program ; National High Technology Research and Development Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28165]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Yongliang; Ye, Shufeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yongliang,Lv, Cuicui,Xiao, Li,et al. Arsenic removal from alkaline leaching solution using Fe (III) precipitation[J]. ENVIRONMENTAL TECHNOLOGY,2019,40(13):1714-1720. |
| APA | Wang, Yongliang.,Lv, Cuicui.,Xiao, Li.,Fu, Guoyan.,Liu, Ya.,...&Chen, Yunfa.(2019).Arsenic removal from alkaline leaching solution using Fe (III) precipitation.ENVIRONMENTAL TECHNOLOGY,40(13),1714-1720. |
| MLA | Wang, Yongliang,et al."Arsenic removal from alkaline leaching solution using Fe (III) precipitation".ENVIRONMENTAL TECHNOLOGY 40.13(2019):1714-1720. |
入库方式： OAI收割
来源：过程工程研究所
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