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| Experimental Kinetics Research on Decomposing Refractory Gold Ore by Bacteria |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Refractory gold ore; Thiobacillus ferrooxidans; Kinetics; Langmuir isotherm equation |
| CHEN Ning,YAO Ying-jie,CHENG Rong,LIANG Ying,HUANG Ya-jie,ZHANG Yong-kui |
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| Abstract: |
| The kinetics of the bacterial dissolution of refractory gold-ore particles by Thiobacillus ferrooxindans was studied with different particles sizes in a well-mixed batch reactor. The bacterial dissolution kinetics with different particle size are studied. The adsorption data was well correlated by the Langmuir isotherm equation. The equilibrium constant KA in the Langmuir equation was independent of the particle size, whereas the maximum adsorption capacity per unit weight of the ore XAm increased with decreasing particle size. The kinetic models of growth of T. f and dissolution of ore were established, and they fitted the experiment data. The initial particle size has a great effect on the growth of T. f and dissolution of the ore. |
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