Effect of sodium chloride on sulfur speciation of chalcopyrite bioleached by the extreme thermophile Acidianus manzaensis
文献类型：期刊论文
| ; | |
| 作者 | Liang, CL; Xia, JL; Nie, ZY; Yang, Y; Ma, CY;马陈燕 |
| 刊名 | BIORESOURCE TECHNOLOGY
 ; BIORESOURCE TECHNOLOGY
|
| 出版日期 | 2012 ; 2012 |
| 卷号 | 110页码:462-467 |
| 关键词 | Sodium chloride Acidianus manzaensis YN25 Chalcopyrite Bioleaching Sodium chloride Acidianus manzaensis YN25 Chalcopyrite Bioleaching |
| DOI | 10.1016/j.biortech.2012.01.084 |
| 英文摘要 | The influence of sodium chloride on dissolution of chalcopyrite and surface sulfur speciation during bioleaching of chalcopyrite with the extreme thermophile Acidianus manzaensis YN-25 was studied. The addition of sodium chloride accelerated the dissolution of chalcopyrite by reducing the accumulation of elemental sulfur layers on the mineral surface, resulting in an increase in the concentration of copper ions from 2.37 g/L. to 2.67 g/L. Jarosite and elemental sulfur were found in the bioleached residues, while the amount of elemental sulfur accumulating on the mineral surface decreased drastically from 25.4% to 3.0% when 0.66 g/L of sodium chloride was present during bioleaching. Therefore, the accumulation of elemental sulfur on the mineral surface is likely mainly responsible for the slowdown in the dissolution rate. The results indicated that bioleaching chalcopyrite with extreme thermophiles possessing high sulfur oxidation activity likely enhances dissolution of chalcopyrite by effectively removing elemental sulfur accumulating on the mineral surface. (C) 2012 Elsevier Ltd. All rights reserved.; The influence of sodium chloride on dissolution of chalcopyrite and surface sulfur speciation during bioleaching of chalcopyrite with the extreme thermophile Acidianus manzaensis YN-25 was studied. The addition of sodium chloride accelerated the dissolution of chalcopyrite by reducing the accumulation of elemental sulfur layers on the mineral surface, resulting in an increase in the concentration of copper ions from 2.37 g/L. to 2.67 g/L. Jarosite and elemental sulfur were found in the bioleached residues, while the amount of elemental sulfur accumulating on the mineral surface decreased drastically from 25.4% to 3.0% when 0.66 g/L of sodium chloride was present during bioleaching. Therefore, the accumulation of elemental sulfur on the mineral surface is likely mainly responsible for the slowdown in the dissolution rate. The results indicated that bioleaching chalcopyrite with extreme thermophiles possessing high sulfur oxidation activity likely enhances dissolution of chalcopyrite by effectively removing elemental sulfur accumulating on the mineral surface. (C) 2012 Elsevier Ltd. All rights reserved. |
| 学科主题 | Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels ; Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels |
| 收录类别 | SCI |
| WOS记录号 | WOS:000305852700066 ; WOS:000305852700066 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/223989]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Liang, CL,Xia, JL,Nie, ZY,et al. Effect of sodium chloride on sulfur speciation of chalcopyrite bioleached by the extreme thermophile Acidianus manzaensis, Effect of sodium chloride on sulfur speciation of chalcopyrite bioleached by the extreme thermophile Acidianus manzaensis[J]. BIORESOURCE TECHNOLOGY, BIORESOURCE TECHNOLOGY,2012, 2012,110, 110:462-467, 462-467. |
| APA | Liang, CL,Xia, JL,Nie, ZY,Yang, Y,&Ma, CY；马陈燕.(2012).Effect of sodium chloride on sulfur speciation of chalcopyrite bioleached by the extreme thermophile Acidianus manzaensis.BIORESOURCE TECHNOLOGY,110,462-467. |
| MLA | Liang, CL,et al."Effect of sodium chloride on sulfur speciation of chalcopyrite bioleached by the extreme thermophile Acidianus manzaensis".BIORESOURCE TECHNOLOGY 110(2012):462-467. |
入库方式： OAI收割
来源：高能物理研究所
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