| 微生物浸出金川露天剥离低品位镍矿 |
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| 引用本文： | 李浩然,冯雅丽.微生物浸出金川露天剥离低品位镍矿[J].北京科技大学学报,2004,26(6):584-587. |
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| 作者姓名： | 李浩然 冯雅丽 |
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| 作者单位： | 1. 中国科学院过程工程研究所生化工程国家重点实验室,北京,100080
2. 北京科技大学士木与环境工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金
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国家高技术研究发展计划(863计划) |
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| 摘 要： | 进行了金川露天剥离镍矿的生物浸出实验.证明金川露天剥离镍矿有价金属的浸出是氧化亚铁硫杆菌直接浸出作用和自由菌产生的Fe3 间接浸出作用的联合;生长于液体培养基中和矿物表面硫杆菌化学行为的差异源于细菌表面存在蛋白质膜;浸出速率和菌种氧化活性受吸附在固相上和液相中细菌生长繁殖速率、矿浆质量浓度、pH值和Fe3 的影响;Fe3 的添加可影响菌种活性,抑制浸出的进行,且易在矿物表面产生沉淀,使浸出率降低.
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| 关 键 词： | 露天剥离镍矿 生物浸出 氧化亚铁硫杆菌 生物吸附特性 微生物浸出 金川 剥离 低品位镍矿 Mine Jinchuan Nickel Stripe Open 浸出率 沉淀 菌种活性 添加 影响 质量浓度 矿浆 繁殖速率 细菌生长 液相 固相 |
| 修稿时间： | 2003年12月2日 |
Bioleaching the Open Stripe Nickel Ore in Jinchuan Mine of China |
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| LI Haoran,FENG YaliNational Laboratory of Bio-chemical Engineering.Bioleaching the Open Stripe Nickel Ore in Jinchuan Mine of China[J].Journal of University of Science and Technology Beijing,2004,26(6):584-587. |
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| Authors: | LI Haoran FENG YaliNational Laboratory of Bio-chemical Engineering |
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| Institution: | LI Haoran,FENG YaliNational Laboratory of Bio-chemical Engineering,Institute of Processing Engineering,Chinese Academy of Sciences,Beijing 100080,ChinaCivil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | Bioleaching experiments on the open stripe nickel ore in Jinchuan Mine of China were carried out. It is demonstrated that the leaching of nickel is combined bio-direct action with bio-indirect action. Thiobacillus fer rooxidans (TF) chemistry behavior difference between TF living in the culture medium and that living on the surface of the ore is based on the protein membrane which grows on the surface of TF. The Ni leaching rate and the oxidative activity of TF are influenced by the growth rate of TF adhered on the solid phase and free in the liquid phase, mineral mass density, Fe3 concentration and pH consistency. Add on-ferric ion can interfere in the bacteria oxidative and inhibit the leaching of Ni, which lead to the formation of sediment on the surface of the mineral and reduce the leaching rate of Ni. |
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| Keywords: | open stripe nickel ore bioleaching Thiobacillus ferrooxidans microbe adherence trait |
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