| Addition of citric acid to enhance the bioleaching chalcopyrite tailings |
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| 作者姓名： | LI Dongwei LIANG Zhirong JIAO Binquan and LI Dou |
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| 作者单位： | College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China |
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| 摘 要： | The effect of mixed sulphur bacilli on the bioleaching of chalcopyrite tailings in shake flask and the effect of different citric acid concentrations and slurry densities on leaching tailings are studied. The results show that the concentration of citric acid in a certain range can promote chalcopyrite tailings bioleaching, and the highest of leaching rate is 44.8%. The citric acid concentration and slurry density directly affect the oxidation activity of bacteria and the effect of leaching.
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| 关 键 词： | chalcopyrite tailings bioleaching citric acid concentration slurry density |
Addition of citric acid to enhance the bioleaching chalcopyrite tailings |
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| LI Dongwei,LIANG Zhirong,JIAO Binquan and LI Dou.Addition of citric acid to enhance the bioleaching chalcopyrite tailings[J].Storage & Process,2012(11):117-121. |
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| Authors: | LI Dongwei LIANG Zhirong JIAO Binquan and LI Dou |
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| Institution: | College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China |
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| Abstract: | The effect of mixed sulphur bacilli on the bioleaching of chalcopyrite tailings in shake flask and the effect of different citric acid concentrations and slurry densities on leaching tailings are studied. The results show that the concentration of citric acid in a certain range can promote chalcopyrite tailings bioleaching, and the highest of leaching rate is 44.8%. The citric acid concentration and slurry density directly affect the oxidation activity of bacteria and the effect of leaching. |
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| Keywords: | chalcopyrite tailings bioleaching citric acid concentration slurry density |
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