Mechanism by which ferric iron promotes the bioleaching of arsenopyrite by the moderate thermophile Sulfobacillus thermosulfidooxidans
文献类型：期刊论文
| 作者 | Zhang, DR; Xia, JL; Nie, ZY; Chen, HR; Liu, HC; Deng, Y; Zhao, YD; Zhang, LL; Wen, W; Yang, HY |
| 刊名 | PROCESS BIOCHEMISTRY
 |
| 出版日期 | 2019 |
| 卷号 | 81期号:-页码:11—21 |
| 关键词 | BACTERIAL OXIDATION GOLD BIOOXIDATION CHALCOPYRITE CHEMISTRY SCHWERTMANNITE FUNDAMENTALS SPECTROSCOPY CONCENTRATE DISSOLUTION |
| ISSN号 | 1359-5113 |
| DOI | 10.1016/j.procbio.2019.03.004 |
| 文献子类 | 期刊论文 |
| 英文摘要 | In this study, the mechanisms by which ferric iron promotes bioleaching of arsenopyrite by the moderately thermoacidophilic strain Sulfobacillus thermosulfidooxidans YN-22 was evaluated for the first time by integrating Fe L-edge and As/S K-edge X-ray absorption near edge structure (XANES) spectroscopy with Fourier transform infrared spectroscopy (FT-IR), synchrotron radiation X-ray diffraction (SR-XRD), Raman spectroscopy, and scanning electron microscopy (SEM), and the leaching parameters were also determined. The results showed that the addition of Fe3+ (6 g/L) significantly promoted bioleaching of arsenopyrite by enhancing the cell growth and the (bio)degradation of elemental sulfur (S-0) and orpiment (As2S3) intermediates on the mineral surface. In addition, an increased formation of loose particulate structures containing the Fe(III)-containing products jarosite (mainly ammoniojarosite), scorodite (ferric arsenate) and schwertmannite was observed. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31705]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China; 2.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China 3.Cent S Univ, Key Lab Biomet, Minist Educ China, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, DR,Xia, JL,Nie, ZY,et al. Mechanism by which ferric iron promotes the bioleaching of arsenopyrite by the moderate thermophile Sulfobacillus thermosulfidooxidans[J]. PROCESS BIOCHEMISTRY,2019,81(-):11—21. |
| APA | Zhang, DR.,Xia, JL.,Nie, ZY.,Chen, HR.,Liu, HC.,...&Yang, HY.(2019).Mechanism by which ferric iron promotes the bioleaching of arsenopyrite by the moderate thermophile Sulfobacillus thermosulfidooxidans.PROCESS BIOCHEMISTRY,81(-),11—21. |
| MLA | Zhang, DR,et al."Mechanism by which ferric iron promotes the bioleaching of arsenopyrite by the moderate thermophile Sulfobacillus thermosulfidooxidans".PROCESS BIOCHEMISTRY 81.-(2019):11—21. |
入库方式： OAI收割
来源：上海应用物理研究所
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