中文摘要：

一在里面称为电气化学的噪音(ECN ) 的 situ 描述技术被用来调查自然黄铁矿的 bioleaching。ECN 实验在四个活跃系统被进行(硫磺的酸，铁离子， 9k 文化媒介，和 bioleaching 解决方案) 。ECN 数据在时间和频率领域被分析。光谱从力量获得的噪音阻抗系列光谱为不同系统的密度(PSD ) 阴谋被比较。反应机制也根据试验性的数据分析被建议。bioleaching 系统展出 0.101 M 的最低噪音抵抗。自然黄铁矿的 bioleaching 被认为是简历电池反应，它把它与化学氧化反应区分开来在铁离子并且文化媒介(9k ) 答案。黄铁矿的腐蚀在 bioleaching 的长期的测试以后随着时间的过去变得更严重。

英文摘要：

An in situ characterization technique called electrochemical noise（ECN） was used to investigate the bioleaching of natural pyrite.ECN experiments were conducted in four active systems（sulfuric acid,ferric-ion,9k culture medium,and bioleaching solutions）.The ECN data were analyzed in both the time and frequency domains.Spectral noise impedance spectra obtained from power spectral density（PSD）plots for different systems were compared.A reaction mechanism was also proposed on the basis of the experimental data analysis.The bioleaching system exhibits the lowest noise resistance of 0.101 MΩ The bioleaching of natural pyrite is considered to be a bio-battery reaction,which distinguishes it from chemical oxidation reactions in ferric-ion and culture-medium（9k） solutions.The corrosion of pyrite becomes more severe over time after the long-term testing of bioleaching.