Significance of jarosite dissolution from the biooxidized pyrite surface on further biooxidation of pyrite

被引：37

作者：

Liu, Fenwu ^{[1
]}

Shi, Jing ^{[2
]}

Duan, Jiebin ^{[1
]}

Zhou, Lixiang ^{[3
]}

Xu, Jianmin ^{[1
]}

Hao, Xianjun ^{[1
]}

Fan, Wenhua ^{[1
]}

机构：

[1] Shanxi Agr Univ, Environm Engn Lab, Coll Resource & Environm, Taigu 030801, Peoples R China

[2] Chinese Acad Sci, Inst Coal Chem, Analyt Instrumentat Ctr, 27 South Taoyuan Rd, Taiyuan 030001, Shanxi, Peoples R China

[3] Nanjing Agr Univ, Dept Environm Engn, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China

来源：

HYDROMETALLURGY | 2018年 / 176卷

基金：

中国国家自然科学基金;

关键词：

K-jarosite; NH4-jarosite; Na-jarosite; Quick dissolution; Pyrite biooxidation; MINE DRAINAGE TREATMENT; ACIDITHIOBACILLUS-FERROOXIDANS; MICROBIAL DESULFURIZATION; OXIDATION; COAL; MINERALOGY; SULFUR; RATES; PH;

D O I：

10.1016/j.hydromet.2018.01.003

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Coal-derived pyrite biooxidation using Acidithiobacillus ferrooxidans is a principal method for coal desulfurization. However, jarosite synthesized in the pyrite biooxidation system can get distributed on the pyrite surfaces and inhibit pyrite biooxidation. In this study, K-jarosite, NH4-jarosite, and Na-jarosite biosynthesis was studied in liquid systems. Then, quick dissolution of K-jarosite was investigated at pH 0.2-1.0, and pyrite biooxidation efficiency before and after jarosite removal from the biooxidized pyrite surface was examined. The results showed that pure K-jarosite was collected from K-jarosite biosynthesis system. However, the minerals harvested from NH4-jarosite and Na-jarosite biosynthesis systems were a mixture of jarosite and schwertmannite. The K-jarosite dissolution efficiency reached 46.0% and 78.4% at 48 h when the initial pH of dissolve system was 1.0 and 0.2, respectively. Moreover, jarosite removal from biooxidized pyrite surface by rapidly dissolving could enhance iron and sulfur dissolution from pyrite in the subsequent biooxidation process.

引用

页码：33 / 41

页数：9

共 32 条

[11] Synthesis and properties of ternary (K, NH4, H3O)-jarosites precipitated from Acidithiobacillus ferrooxidans cultures in simulated bioleaching solutions [J].

Jones, F. Sandy ;

Bigham, Jerry M. ;

Gramp, Jonathan P. ;

Tuovinen, Olli H. .

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2014, 44 :391-399

[12] Prediction of microbial desulfurization of coal using artificial neural networks [J].

Jorjani, E. ;

Chelgani, S. Chehreh ;

Mesroghli, Sh. .

MINERALS ENGINEERING, 2007, 20 (14) :1285-1292

[13]

Kawabe Y, 2003, J BIOSCI BIOENG, V96, P375

[14] Diversity of bacterial iron mineralization [J].

Konhauser, KO .

EARTH-SCIENCE REVIEWS, 1998, 43 (3-4) :91-121

[15] Effect of calcium oxide on the efficiency of ferrous ion oxidation and total iron precipitation during ferrous ion oxidation in simulated acid mine drainage treatment with inoculation of Acidithiobacillus ferrooxidans [J].

Liu, Fenwu ;

Zhou, Jun ;

Jin, Tongjun ;

Zhang, Shasha ;

Liu, Lanlan .

WATER SCIENCE AND TECHNOLOGY, 2016, 73 (06) :1442-1453

[16] Effect of neutralized solid waste generated in lime neutralization on the ferrous ion bio-oxidation process during acid mine drainage treatment [J].

Liu, Fenwu ;

Zhou, Jun ;

Zhou, Lixiang ;

Zhang, Shasha ;

Liu, Lanlan ;

Wang, Ming .

JOURNAL OF HAZARDOUS MATERIALS, 2015, 299 :404-411

[17]

[刘奋武 Liu Fenwu], 2013, [环境科学学报, Acta Scientiae Circumstantiae], V33, P3025

[18]

[刘奋武 Liu Fenwu], 2013, [环境科学学报, Acta Scientiae Circumstantiae], V33, P2445

[19] Improvement of sludge dewaterability and removal of sludge-borne metals by bioleaching at optimum pH [J].

Liu, Fenwu ;

Zhou, Lixiang ;

Zhou, Jun ;

Song, Xingwei ;

Wang, Dianzhan .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 221 :170-177

[20] Distribution and mode of occurrence of As, Hg and Se and sulfur in coal Seam 3 of the Shanxi Formation,Yanzhou Coalfield, China [J].

Liu, Guijian ;

Zheng, Liugen ;

Zhang, Ying ;

Qi, Cuicui ;

Chen, Yiwei ;

Peng, Zicheng .

INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2007, 71 (2-3) :371-385

← 1 2 3 4 →