Comparative study on bioleaching of two different types of low-grade copper tailings by mixed moderate thermophiles

被引：25
作者：
Hao, Xiao-dong [1 ,2 ]
Liu, Xue-duan [1 ,2 ]
Yang, Qin [1 ,2 ]
Liu, Hong-wei [1 ,2 ]
Yin, Hua-qun [1 ,2 ]
Qiu, Guan-zhou [1 ,2 ]
Liang, Yi-li [1 ,2 ]
机构：
[1] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, Key Lab Biomet, Minist Educ, Changsha 410083, Hunan, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2018年 / 28卷 / 09期
基金：
中国国家自然科学基金;
关键词：
bioleaching; tailings; microbial community dynamics; mineralogical analysis; MICROBIAL COMMUNITY SUCCESSION; SULFIDE MINE TAILINGS; HEAVY-METALS; ACIDITHIOBACILLUS-THIOOXIDANS; CHALCOPYRITE CONCENTRATE; FLOTATION TAILINGS; CEMENTED LAYERS; MICROORGANISMS; PYRITE; TOXICITY;
D O I：
10.1016/S1003-6326(18)64829-0
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The bioleaching of two different types of low-grade copper tailings, acid-leaching tailings (ALT) and copper flotation tailings (CFT) by mixed moderate thermophiles, and the variation of mineralogical and microbiological characteristics during their dissolution processes were comparatively investigated. Results showed that bioleaching behaviors of the two types of tailings were significantly different. In ALT bioleaching, lower redox potential, higher [Fe3+]/[Fe2+] ratio and higher cell density in solution were obtained. These resulted in higher total copper, primary copper sulfide and secondary copper sulfide extractions, compared with CFT bioleaching. X-ray diffraction analysis suggested that gypsum and some metal organic complexes were detected in CFT bioleaching, which could cause the sluggish oxidation of sulphide minerals. The shifts of microbial community in the leachates and leaching residues varied greatly between ALT and CFT bioleaching. The percentage of iron-oxidizing bacteria in ALT bioleaching was higher than that of CFT, but the sulfur-oxidizing bacteria percentage was the opposite. The archaeon F. thermophilum L1 was detected in ALT but not in CFT.
引用
收藏
页码：1847 / 1853
页数：7
相关论文
共 28 条
[1]   Electrochemical bioleaching of high grade chalcopyrite flotation concentrates in a stirred bioreactor [J].
Ahmadi, A. ;
Schaffie, M. ;
Manafi, Z. ;
Ranjbar, M. .
HYDROMETALLURGY, 2010, 104 (01) :99-105
[2]   Assessment of biotechnological strategies for the valorization of metal bearing wastes [J].
Beolchini, Francesca ;
Fonti, Viviana ;
Dell'Anno, Antonio ;
Rocchetti, Laura ;
Veglio, Francesco .
WASTE MANAGEMENT, 2012, 32 (05) :949-956
[3]   THE FORMATION AND POTENTIAL IMPORTANCE OF CEMENTED LAYERS IN INACTIVE SULFIDE MINE TAILINGS [J].
BLOWES, DW ;
REARDON, EJ ;
JAMBOR, JL ;
CHERRY, JA .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1991, 55 (04) :965-978
[4]   Copper, zinc, and iron bioleaching from polymetallic sulphide concentrate [J].
Conic, Vesna T. ;
Rajcic Vujasinovic, Mirjana M. ;
Trujic, Vlastimir K. ;
Cvetkovski, Vladimir B. .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2014, 24 (11) :3688-3695
[5]   Thin-layer heap bioleaching of copper flotation tailings containing high levels of fine grains and microbial community succession analysis [J].
Hao, Xiao-dong ;
Liang, Yi-li ;
Yin, Hua-qun ;
Liu, Hong-wei ;
Zeng, Wei-min ;
Liu, Xue-duan .
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2017, 24 (04) :360-368
[6]   The effect of potential heap construction methods on column bioleaching of copper flotation tailings containing high levels of fines by mixed cultures [J].
Hao, Xiaodong ;
Liang, Yili ;
Yin, Huaqun ;
Ma, Liyuan ;
Xiao, Yunhua ;
Liu, Yazi ;
Qiu, Guanzhou ;
Liu, Xueduan .
MINERALS ENGINEERING, 2016, 98 :279-285
[7]   Effect of pyrite, elemental sulfur and ferrous ions on EPS production by metal sulfide bioleaching microbes [J].
He, Zhi-guo ;
Yang, Yan-ping ;
Zhou, Shan ;
Hu, Yue-hua ;
Zhong, Hui .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2014, 24 (04) :1171-1178
[8]   The influence of rock characteristics on acid leach extraction and re-extraction of Cu-oxide and sulfide minerals [J].
Helle, S. ;
Jerez, O. ;
Kelm, U. ;
Pincheira, M. ;
Varela, B. .
MINERALS ENGINEERING, 2010, 23 (01) :45-50
[9]   Biomining - biotechnologies for extracting and recovering metals from ores and waste materials [J].
Johnson, D. Barrie .
CURRENT OPINION IN BIOTECHNOLOGY, 2014, 30 :24-31
[10]   A review of the structure, and fundamental mechanisms and kinetics of the leaching of chalcopyrite [J].
Li, Y. ;
Kawashima, N. ;
Li, J. ;
Chandra, A. P. ;
Gerson, A. R. .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2013, 197 :1-32
123