| 一株中等嗜热菌的生长和对Fe2＋的氧化 |
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| 引用本文： | 陆树林,谢海云.一株中等嗜热菌的生长和对Fe2＋的氧化[J].内蒙古石油化工,2010,36(8):1-5. |
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| 作者姓名： | 陆树林 谢海云 |
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| 作者单位： | 1. 甘肃西脉矿冶股份有限公司,甘肃,瓜州,736100
2. 昆明理工大学国土资源工程学院,云南,昆明,650093 |
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| 基金项目： | 昆明理工大学人才培养基金 |
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| 摘 要： | 针对由某热泉分离得到的一株中等嗜热菌,研究了不同温度、元素硫、pH值、初始亚铁和铁离子浓度等条件对该菌的生长速度及其对Fe2＋氧化能力的影响,结果表明该菌适宜的生长条件为,温度50℃-55℃、pH1.5,初始Fe2＋浓度0.08-0.16mol/L,初始Fe3＋浓度0.08-0.16mol/L,此时细菌的生长速度较快,10d后Fe2＋的氧化率为87%-99%,该中等嗜热菌对Fe3＋的良好氧化能力显示出其在生物浸矿中的应用潜力。
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| 关 键 词： | 中等嗜热菌 生物氧化 亚铁离子 铁离子 |
Growth and Bio-oxidation Fe2+ of a Strain of Moderate Thermophilic Bacteria |
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| LU Shu-lin,XIE Hai-yun.Growth and Bio-oxidation Fe2+ of a Strain of Moderate Thermophilic Bacteria[J].Inner Mongulia Petrochemical Industry,2010,36(8):1-5. |
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| Authors: | LU Shu-lin XIE Hai-yun |
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| Affiliation: | LU Shu-lin1,XIE Hai-yun2(1.Western Mining Co.,Ltd.GANSU,Lanzhou 736100,China,2.Faculty of Land Resource Engineering,Kunming University of Science and Technology,YUNNAN,Kunming 650093,China) |
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| Abstract: | A moderate thermophilic bacterium was isolated from a spring,and the influencing factors of the moderate thermophile growth have been studied,such as element sulfur,growth temperature,pH value,the initial concentration of Fe2＋ and Fe3＋ etc.The experiments results show that the optimum conditions for growth of moderate thermophile are between 50~55℃ of temperature,pH at 1.5,and the initial concentration of Fe2＋ and Fe3＋ is in the range of 0.08~0.16mol/L,the moderate thermophile grow well and after 10 days the oxidation rate of Fe2＋ is 87~99%,The ability of this strain to oxidize iron shows that it has a good prospective in bioleaching. |
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| Keywords: | Moderate Thermophilic Bacteria Bio-oxidation Ferrous Ions Ferric Ions |
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