Mechanism by which ferric iron promotes the bioleaching of arsenopyrite by the moderate thermophile Sulfobacillus thermosulfidooxidans

doi:10.1016/j.procbio.2019.03.004

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Mechanism by which ferric iron promotes the bioleaching of arsenopyrite by the moderate thermophile Sulfobacillus thermosulfidooxidans
	Zhang, DR ; Xia, JL ; Nie, ZY ; Chen, HR ; Liu, HC ; Deng, Y ; Zhao, YD ; Zhang, LL ; Wen, W ; Yang, HY
刊名	PROCESS BIOCHEMISTRY
	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
内容类型	期刊论文
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.