The metal ions release and microstructure of coal gangue corroded by acid-based chemical solution
文献类型：期刊论文
| 作者 | Xue, Qiang ; Lu, Haijun; Zhao, Ying; Liu, Lei
|
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2014 |
| 卷号 | 71期号:7页码:3235-3244 |
| 关键词 | Coal gangue Chemical solution Pollutant release Microstructure Pore size distribution |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-013-2743-y |
| 英文摘要 | Cationic release, surface microstructure, and pore size distribution of coal gangue during the acid-based chemical solution corrosion were investigated. Results showed that during the interactions of gangue and chemical solution, the acidity and alkalinity of mixed solutions first decrease quickly, and then stabilize. The concentrations of released Ca, Mg, and Fe in gangue decrease with the decreasing acidity of the chemical solution, and produce a trend of increase-to-decrease with the increase in alkalinity. The release of Ca, Mg, and Fe is significantly influenced by the weathering of gangue. Ca and Mg achieve a concentrated release during the first day, whereas the release of Fe occurs gradually within the first 10 days. The microstructure detection result indicates that the surface structure of fresh gangue is exposed to obvious corrosion by acid-based chemical solutions, with higher extent of corrosion in acidic solution than that in alkaline solution. The micropore is relatively developed, and the secondary and middle pores increase gradually. The specific surface area is increased. Furthermore, the pore size distribution of abundance of micropore and middle pore shows a series of inconsistent spectra instead of a continuous wide-flat spectrum. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000333014500021 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3581]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Xue, Qiang,Lu, Haijun,Zhao, Ying,et al. The metal ions release and microstructure of coal gangue corroded by acid-based chemical solution[J]. ENVIRONMENTAL EARTH SCIENCES,2014,71(7):3235-3244. |
| APA | Xue, Qiang,Lu, Haijun,Zhao, Ying,&Liu, Lei.(2014).The metal ions release and microstructure of coal gangue corroded by acid-based chemical solution.ENVIRONMENTAL EARTH SCIENCES,71(7),3235-3244. |
| MLA | Xue, Qiang,et al."The metal ions release and microstructure of coal gangue corroded by acid-based chemical solution".ENVIRONMENTAL EARTH SCIENCES 71.7(2014):3235-3244. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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