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李杰, 朱琳, 李睿华. 生物氧化磁黄铁矿产生铁离子[J]. 环境工程学报, 2013, 7(7): 2424-2428.
引用本文: 李杰, 朱琳, 李睿华. 生物氧化磁黄铁矿产生铁离子[J]. 环境工程学报, 2013, 7(7): 2424-2428.
shu
Li Jie, Zhu Lin, Li Ruihua. Production of iron ions from biooxidation of pyrrhotite[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2424-2428.
Citation: Li Jie, Zhu Lin, Li Ruihua. Production of iron ions from biooxidation of pyrrhotite[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2424-2428.
shu

生物氧化磁黄铁矿产生铁离子

  • 1.

    南京大学环境学院污染控制与资源化研究国家重点实验室, 南京 210046

  • 基金项目:

    污染控制与资源化研究国家重点实验室开放基金

    国家自然科学基金资助项目(50978133)

  • 中图分类号: X751

Production of iron ions from biooxidation of pyrrhotite

  • 1.

    State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China

  • Fund Project:

  • 摘要: 从广东云浮矿山酸性废水中富集获得氧化亚铁硫杆菌(Thiobacillus ferrooxidans),利用该氧化亚铁硫杆菌研究了反应时间、pH、温度、矿浆浓度和矿物粒度对磁黄铁矿生物氧化获得铁离子的影响。结果表明,在29℃,摇床转速200 r/min,10%接种量条件下,氧化亚铁硫杆菌可以明显促进磁黄铁矿的氧化,但反应后期有黄钾铁矾沉淀生成,不利于获得铁离子;控制溶液pH值为2.00,温度在29~36℃范围,可促进生物氧化磁黄铁矿获得铁离子;铁离子量随着矿浆浓度的增大和矿物粒度的减小而增加,优化的矿浆浓度和矿物粒径分别为6%和58 μm左右。
    Abstract: The Thiobacillus ferrooxidans were cultured from acid mine drainage of iron sulfur mine of Yunfu, in Guangdong. In the process of biooxidation of pyrrhotite with the Thiobacillus ferrooxidans the effects of reaction time, pH, temperature, slurry density and particle size on the production of iron ions were studied with batch experiments. The results showed that the Thiobacillus ferrooxidans promoted the oxidation of pyrrhotite significantly at 160 rpm of rotary shaker, 29℃ and 10% of inoculation,and KFe3(SO4)2(OH)6 was formed during the later stage of reaction and it is harmful to production of iron ions. The production of iron ions was promoted when the pH was 2.00 and temperature was between 29 and 36℃. The concentration of iron ions increased gradually with increasing of slurry density and reducing of particle size, and the optimal slurry density and particle size were about 6% and 58 μm, respectively.
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  • 收稿日期:  2012-03-20
  • 刊出日期:  2013-07-18
李杰, 朱琳, 李睿华. 生物氧化磁黄铁矿产生铁离子[J]. 环境工程学报, 2013, 7(7): 2424-2428.
引用本文: 李杰, 朱琳, 李睿华. 生物氧化磁黄铁矿产生铁离子[J]. 环境工程学报, 2013, 7(7): 2424-2428.
shu
Li Jie, Zhu Lin, Li Ruihua. Production of iron ions from biooxidation of pyrrhotite[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2424-2428.
Citation: Li Jie, Zhu Lin, Li Ruihua. Production of iron ions from biooxidation of pyrrhotite[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2424-2428.
shu

生物氧化磁黄铁矿产生铁离子

  • 1. 南京大学环境学院污染控制与资源化研究国家重点实验室, 南京 210046
  • 收稿日期:  2012-03-20
基金项目:

污染控制与资源化研究国家重点实验室开放基金

国家自然科学基金资助项目(50978133)

摘要: 从广东云浮矿山酸性废水中富集获得氧化亚铁硫杆菌(Thiobacillus ferrooxidans),利用该氧化亚铁硫杆菌研究了反应时间、pH、温度、矿浆浓度和矿物粒度对磁黄铁矿生物氧化获得铁离子的影响。结果表明,在29℃,摇床转速200 r/min,10%接种量条件下,氧化亚铁硫杆菌可以明显促进磁黄铁矿的氧化,但反应后期有黄钾铁矾沉淀生成,不利于获得铁离子;控制溶液pH值为2.00,温度在29~36℃范围,可促进生物氧化磁黄铁矿获得铁离子;铁离子量随着矿浆浓度的增大和矿物粒度的减小而增加,优化的矿浆浓度和矿物粒径分别为6%和58 μm左右。

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