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介绍了含砷低品位硫化铜矿柱浸实验研究方法、装置和结果.实验在八根有机玻璃柱浸系统中进行,考察了细菌种类、矿石粒度、供氧条件及浸出周期等参数对浸出率的影响.结果表明,在-12mm粒度下,采用Z08090-O菌株浸出,浸出167d,铜浸出率为80.75%.对含大量黄铁矿且耗酸脉石少的矿石,酸的累积降低了采用普通驯化浸矿菌的铜浸出率,但采用激光诱变获得的耐低pH值浸矿菌,能够保持高效的铜浸出率.
The research methods, devices and results of arsenic low-grade copper sulfide pillar leaching experiments were introduced.The experiments were carried out in eight plexiglass column leaching systems, the effects of bacterial species, ore size, oxygen supply conditions and leaching cycle on leaching rate .The results showed that the leaching rate of Cu was 80.75% after leaching with Z08090-O strain at -12mm for 167d, and the accumulation of acid was reduced for ores with a large amount of pyrite Common domesticated leaching of copper soaking leaching rate, but the laser-induced low pH-tolerant leaching bacteria, to maintain efficient copper leaching rate.