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不同能源物质对At.f菌浸出低品位铜尾矿的影响
引用本文:董颖博,林海,莫晓兰,傅开彬.不同能源物质对At.f菌浸出低品位铜尾矿的影响[J].中南大学学报(自然科学版),2011,42(5).
作者姓名:董颖博  林海  莫晓兰  傅开彬
作者单位:北京科技大学土木与环境工程学院金属矿山高效开采与安全教育部重点实验室,北京,100083
基金项目:北京市教育委员会共建项目
摘    要:以嗜酸氧化亚铁硫杆菌LD-1菌株(At.f LD-1)为研究对象,研究硫酸亚铁、硫代硫酸钠和黄铁矿3种能源物质对At.f LD-1菌株浸出低品位铜尾矿浸出体系及铜浸出效率的影响.研究结果表明:At.f LD-1菌株浸出铜尾矿初期加入适量的硫酸亚铁、硫代硫酸钠、黄铁矿均能提高铜的浸出效率,其中以硫代硫酸钠的效果最为显著;初始加入二价铁质量浓度为5 g/L时浸出效果较好,46d铜浸出率达35.00%,与不加硫酸亚铁的相比提高13.63%;硫代硫酸钠中S质量浓度为1 g/L时浸铜效果最好,46d铜的浸出率达到38.10%,与不加硫代硫酸钠的相比提高23.70%;加入黄铁矿对提高铜浸出率也能起到促进作用,浸出46d后铜浸出率达34.17%,与不加黄铁矿时相比提高11.00%.

关 键 词:At.f  LD-1菌株  硫酸亚铁  硫代硫酸钠  黄铁矿  铜尾矿  浸出

Effect of different energy sources on At.f bacterial leaching of low-grade copper tailings
DONG Ying-bo,LIN Hai,MO Xiao-lan,FU Kai-bin.Effect of different energy sources on At.f bacterial leaching of low-grade copper tailings[J].Journal of Central South University:Science and Technology,2011,42(5).
Authors:DONG Ying-bo  LIN Hai  MO Xiao-lan  FU Kai-bin
Institution:DONG Ying-bo,LIN Hai,MO Xiao-lan,FU Kai-bin (Key Laboratory of Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines,School of Civil & Environment Engineering,University of Science and Technology Beijing,Beijing 100083,China)
Abstract:The effect of different energy sources on bio-leaching of the low-grade copper tailings was studied with strain Acidthiobacillus ferrooxidans(At.f) LD-1.The results show that ferrous sulfate,sodium thiosulfate and pyrite can improve the efficiency of copper leaching.When the initial mass concentration of ferrous is 5 g/L,the copper leaching rate reaches 35.00% after 46 d leaching,13.63% higher than that without ferrous sulfate.When sodium thiosulfate is added with 1 g/L of initial S mass concentration,the c...
Keywords:At  f LD-1  ferrous sulfate  sodium thiosulfate  pyrite  copper tailing  leaching  
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