The effects of mechanical activation and pyrite addition on the bacterial and electrochemical aspects of the zinc bioleaching from a sulphide concentrate was evaluated. The experiments were performed in the presence of a mixed culture of moderately thermophilic microorganisms in shake flasks and a stirred tank reactor. Electrochemical analyses were performed to find the process mechanisms. Mechanical activation increased zinc bioleaching from 49% and 61.4% to 62.5% and 72.2% in the presence of 0 and 30 wt% pyrite addition, respectively. The reason for the enhancement of zinc bioleaching for the mechanically activated samples was the increasing of contact area of target minerals and change in the mineral structure. Furthermore, the electrochemical analysis results confirmed that the mechanical activation was significantly increased the rate of sphalerite anodic oxidization.

评估了机械活化和黄铁矿添加对硫化物精矿中锌生物浸出的细菌和电化学方面的影响。实验是在摇瓶和搅拌釜反应器中，在中等嗜热微生物的混合培养物中进行的。进行电化学分析以发现过程机理。在添加0和30 wt％的黄铁矿的情况下，机械活化将锌的生物浸出分别从49％和61.4％增加到62.5％和72.2％。机械活化样品中锌的生物浸出增强的原因是目标矿物接触面积的增加和矿物结构的变化。此外，