Effect of bacterial activity on trace metals release from oxidation of sphalerite at low pH (<3) and implications for AMD environment
Effect of bacterial activity on trace metals release from oxidation of sphalerite at low pH (<3) and implications for AMD environment
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DOI：
10.1007/s12665-009-0189-z
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发表时间：
2010-04-01
影响因子：
2.8
通讯作者：
Balci, Nurgul Celik
中科院分区：
文献类型：
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作者：
Balci, Nurgul Celik
为更好地了解细菌对酸性矿山废水（AMD）中闪锌矿矿物氧化过程中微量金属释放和元素循环的影响，进行了一系列实验。在pH 3下进行分批实验作为生物和非生物对照。氧化亚铁硫杆菌，硫和铁（II）氧化剂，用于生物闪锌矿实验。在不添加细菌的情况下进行非生物控制实验。在54 d的时间内，测定了As、Cd、Co、Pb、Cu、Mn、Fe、Zn等6种微量金属元素的释放行为。与非生物实验相比，细菌对闪锌矿的强化氧化产生了较高的硫酸盐（接近2，000 mg/L）和Fetot（139 mg/L）沿着较低的pH（
A series of experiments was conducted to better understand the bacterial influence on the release of trace metals during oxidation of sphalerite mineral and element cycles in acid mine drainage (AMD) systems. Batch experiments were carried out as biotic and abiotic control at pH 3. Acidithiobacillus ferrooxidans, sulfur and Fe(II) oxidizer, was used in the biotic sphalerite experiment. The abiotic control experiment was run without adding the bacteria. The release behavior of six trace metals (As, Cd, Co, Pb, Cu and Mn), Fe and Zn were determined during the period of 54 days. Compared to the abiotic experiments, enhanced oxidation of sphalerite by bacteria produced high sulfate (similar to 2,000 mg/L) and Fetot (139 mg/L) along with the low pH (