| The Machanism of Bacterial Oxidation of Sulphides |
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| 引用本文： | Wang Ende Shenyang Institute of Gold Technology,Shenyang,Liaoningand Guan Guangyue Northeast U niversity of Technology,Shenyang,Liaoniny. The Machanism of Bacterial Oxidation of Sulphides[J]. 《地质学报》英文版, 1994, 68(1): 31-42. DOI: 10.1111/j.1755-6724.1994.mp7001003.x |
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| 作者姓名： | Wang Ende Shenyang Institute of Gold Technology Shenyang Liaoningand Guan Guangyue Northeast U niversity of Technology Shenyang Liaoniny |
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| 作者单位： | Wang Ende Shenyang Institute of Gold Technology，Shenyang，Liaoningand Guan Guangyue Northeast U niversity of Technology，Shenyang，Liaoniny |
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| 摘 要： | The bacteria used in the experiment are Thiobacillus Ferrooxidans separated from acidic mine water in sulphide deposits. The chemoautotrophic bacteria can act directly on sulphides and accelerate the oxidation of sulphides. The experiment shows that the bacteria, as an important microbial factor of gold's supergenous enrichment within the oxidized zones of sulphide deposits, are helpful to dissolve gold and silver in ferric sulphate. In the bacterial oxidation process, the precipitation of goethite is concerned both with the lower activity of ferric ions and with the existence of carbonates in solution. Meanwhile, the acid-resisting and oxidizing ability of the bacteria will certainly lead up to a microbial way of treating the acidic mine water.
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The Machanism of Bacterial Oxidation of Sulphides |
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| Wang Ende Shenyang Institute of Gold Technology,Shenyang,Liaoningand Guan Guangyue Northeast U niversity of Technology,Shenyang,Liaoniny. The Machanism of Bacterial Oxidation of Sulphides[J]. Acta Geologica Sinica (English Edition), 1994, 68(1): 31-42. DOI: 10.1111/j.1755-6724.1994.mp7001003.x |
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| Authors: | Wang Ende Shenyang Institute of Gold Technology Shenyang Liaoningand Guan Guangyue Northeast U niversity of Technology Shenyang Liaoniny |
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| Abstract: | The bacteria used in the experiment are Thiobacillus Ferrooxidans separated from acidic mine water in sulphide deposits. The chemoautotrophic bacteria can act directly on sulphides and accelerate the oxidation of sulphides. The experiment shows that the bacteria, as an important microbial factor of gold's supergenous enrichment within the oxidized zones of sulphide deposits, are helpful to dissolve gold and silver in ferric sulphate. In the bacterial oxidation process, the precipitation of goethite is concerned both with the lower activity of ferric ions and with the existence of carbonates in solution. Meanwhile, the acid-resisting and oxidizing ability of the bacteria will certainly lead up to a microbial way of treating the acidic mine water. |
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| Keywords: | sulphides bacterial oxidation supergene enrichment of gold |
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