A comparison of the bacterial and chemical leaching of sphalerite at the same solution conditions

摘要: In this work we describe the use of a novel experiment to study bacterial leaching sphalerite (ZnS). We have constructed an in which conditions reactor without bacteria are forced by control system follow with bacteria. The takes place batch where redox potential is measured continuously.These measurements serve as setpoint value for solution controlled application electrolytic current.In manner, chemical emulate found experiment. results obtained show that amount zinc dissolved initially same both and leaching. After approximately 10 hours, conversion higher than This may be due formation product layer sulphur formed on unreacted reaction. Although porous, it limits rate under certain conditions. experiments, not present, since oxidised therefore because has been removed.