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Quartz crystal microbalance with dissipation (QCM-D) was used to monitor the micro-mass change during the gold leaching process for exploring the variation of gold leaching rate in cyanide solution. It is found that with a cyanide ion concentration of 55.2 mg/L and the dissolved oxygen concentration in the system increased from 1.5 mg/L to 8.5 mg/L, the leaching rate of gold can be increased from 430.9 ng/(cm2·min) to 514.8 ng/(cm2·min), up 19.5%; with the dissolved oxygen at the mass concentration of 8.5 mg/L, an increase in the cyanide ion concentration from 22.6 mg/L to 55.2 mg/L can lead to the gold leaching rate up to 514.8 ng/(cm2·min) from 60.1 ng/(cm2·min), presenting a 7.6-fold improvement. It is concluded that the gold-leaching rate has something to do with the ratio of cyanide ion concentration to dissolved oxygen concentration . The gold leaching rate is higher with
at the room temperature.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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