中文摘要：

黄铁矿和由在离子强度和酸碱值价值的不同层次的硫有教养的 Acidithiobacillus ferrooxidans 的希腊语的第六个字母潜力被犁刀 Delsa 440SX 希腊语的第六个字母潜力 determinator 测量。同时，细菌的粘附的效果和在吸附以后的黄铁矿的希腊语的第六个字母潜力上的细菌的集中被调查。结果证明随离子强度的增加，黄铁矿的希腊语的第六个字母潜力在酸碱值 2.5-10.5 和矿物质移动的等电点(IEP ) 的范围减少到左。氯化物离子罐头的黄铁矿上的特定的吸附严厉地影响黄铁矿的希腊语的第六个字母潜力，这也被发现。当细菌的吸附发生，黄铁矿的 IEP 向 Acidithiobacillus ferrooxidans 的变；因为细菌的集中是增大的，这个趋势甚至更大、更明显。最后，对的合理解释上述试验性的现象被双电子层模型和表面电离模型给。

英文摘要：

Zeta potentials of pyrite and Acidithiobacillusferrooxidans cultured by sulfur in different levels of ionic strength and pH values were measured by Coulter Delsa 440SX zeta potential determinator. Meanwhile, the effects of bacterial adhesion and bacterial concentration on zeta potential of pyrite after adsorption were investigated. The results show that with the increase of ionic strength, zeta potentials of pyrite decrease in the range ofpH 2.5-10.5 and the isoelectric point（IEP） of mineral shifts to the left. It is also found that the specific adsorption on pyrite of chloride ion can affect zeta potentials of pyrite sharply. As bacterial adsorption occurs, IEP of pyrite shifts towards that of Acidithiobacillus ferrooxidans; as bacterial concentration is inerescent, this tendency is even larger and more obvious. Finally, a reasonable explanation for above-mentioned experimental phenomena was given by electrical double layer model and surface ionization model.