| 硫化物矿山尾矿生物氧化作用的抑制研究 |
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| 引用本文： | 张哲,党志,舒小华.硫化物矿山尾矿生物氧化作用的抑制研究[J].环境工程学报,2010,4(5):1191-1195. |
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| 作者姓名： | 张哲 党志 舒小华 |
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| 作者单位： | 1. 华南理工大学环境科学与工程学院,广州510006;教育部工业聚集区污染控制与生态修复教育部重点实验室,广州510006
2. 华南理工大学环境科学与工程学院,广州510006;污染控制与生态修复广东省教育厅重点实验室,广州510006 |
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| 基金项目： | 国家自然科学基金重点项目资助（40730741）；广东省自然科学基金研究团队项目（9351064101000001）；广东省自然科学基金重点项目（05103552） |
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| 摘 要： | 硫化物矿山尾矿的风化、氧化会对周围环境产生危害,研究表明,以氧化亚铁硫杆菌为代表的嗜酸氧化菌起了非常重要的作用。本研究以从广东韶关大宝山尾矿分离得到的一株氧化亚铁硫杆菌作为实验菌株,添加不同剂量的杀菌剂,分析了杀菌剂对溶液pH、Eh值的影响,及杀菌剂的Fe2+氧化抑制率和最佳使用浓度。结果显示:实验用杀菌剂SDS和CTAB能有效地抑制金属硫化物尾矿的生物氧化和酸化:ρ(SDS)为30 mg/L时Fe2+的氧化抑制率达到82.83%;ρ(CTAB)为5 mg/L时Fe2+的氧化抑制率达到80.84%,添加了杀菌剂的溶液pH、Eh基本保持初始值不变,表明杀菌剂的使用可以控制金属硫化物尾矿的酸化污染。
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| 关 键 词： | 多金属硫化物尾矿 生物氧化 杀菌剂 氧化亚铁硫杆菌 |
Study on the inhibition of biological oxidation in sulfide tailings |
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| Zhang Zhe,Dang Zhi and Shu Xiaohua.Study on the inhibition of biological oxidation in sulfide tailings[J].Techniques and Equipment for Environmental Pollution Control,2010,4(5):1191-1195. |
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| Authors: | Zhang Zhe Dang Zhi and Shu Xiaohua |
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| Institution: | 1.College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006,China; 2.The Key Laboratory of Education Ministry for Industrial Pollution Control District and Ecological Restoration,Guangzhou 510006,China,1.College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006,China; 3.The Key Laboratory of Education in Guangdong Province for Pollution Control and Ecological Restoration, Guangzhou 510006,China and 1.College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006,China; 2.The Key Laboratory of Education Ministry for Industrial Pollution Control District and Ecological Restoration,Guangzhou 510006,China |
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| Abstract: | The decomposition of multi-metal mine tailings results in some environmental problems and disasters,studies show that acidophilic bacterias,represented by Thiobacillus ferrooxidans,play an important role in the process of decomposition of minerals.The inhibitation of Fe~(2+) oxidation was analyzed by adding different doses of bactericides into the solution of purified Thiobacillus ferroxidans.The effects of two bactericides.SDS and CTAB in inhibition of Thiobacillus ferroxidans in mineral tailings,were researched.The lab experiment showed that both bactericides (SDS and CTAB) are effective in inhibiting the activity of Thiobacillus ferroxidans.The inhibition rate of controlling Fe~(2+) oxidation is 82.83% with SDS at the concentration of 30 mg/L,and that of CTAB is 80.84% at the concentration of 5 mg/L.Bactericide technology can be used to control the acidification of sulfide tailings pollution and promote ecological reconstruction. |
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| Keywords: | multi-metal mine tailings biological oxidation bactericides Thiobacillus ferrooxidans |
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