| 嗜酸氧化亚铁硫杆菌的高效培养及浸出黄铜矿初探 |
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| 引用本文： | 康文亮,杨海麟,冯守帅,张玲,冷云伟,王武. 嗜酸氧化亚铁硫杆菌的高效培养及浸出黄铜矿初探[J]. 工业微生物, 2011, 41(4): 50-56. DOI: 10.3969/j.issn.1001-6678.2011.04.010 |
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| 作者姓名： | 康文亮 杨海麟 冯守帅 张玲 冷云伟 王武 |
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| 作者单位： | 1. 江南大学工业生物技术教育部重点实验室,江苏,无锡,214122
2. 中国矿业大学化工学院,江苏,徐州,221009 |
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| 基金项目： | 江南大学青年基金，深圳市土木工程耐久性重点实验室开放课题 |
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| 摘 要： | 采用向硫化矿培养基中补加FeSO4的方式以维持Fe2+ 浓度为4～8 g/L,可使嗜酸氧化亚铁硫杆菌菌浓在培养39 h时达到6.25×108 cells/mL,并在比生长速率几乎不降低的前提下提高了转化率和生产强度.然后对低氧化还原电位下低品位黄铜矿的浸出进行初步研究,结果表明经过30 d浸出,铜的浸出率可达28.5%...
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| 关 键 词： | 嗜酸氧化亚铁硫杆菌 补料分批培养 硫化矿培养基 黄铜矿 生物浸出 |
Efficient culture of Acidithiobacillus ferrooxidans and preliminary study on chalcopyrite bioleaching |
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| Kang Wen-liang,Yang Hai-lin,Feng Shou-shuai,Zhang Ling,Leng Yun-wei,Wang Wu. Efficient culture of Acidithiobacillus ferrooxidans and preliminary study on chalcopyrite bioleaching[J]. Industrial Microbiology, 2011, 41(4): 50-56. DOI: 10.3969/j.issn.1001-6678.2011.04.010 |
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| Authors: | Kang Wen-liang Yang Hai-lin Feng Shou-shuai Zhang Ling Leng Yun-wei Wang Wu |
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| Affiliation: | 1. Key Laboratory of Industrial Bioteehnology of Ministry of Education, Jiangnan University, Wuxi 214122, China; 2. School of Chnical Engineering ＆ Technology, China University of Mining and Technology, Xuzhou 221009, China) |
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| Abstract: | By feeding of ferrous sulfate into sulfide minerals medium to maintain the Fe2 ＋ within the concentration range from 4 g/L to 8 g/L, the biomass of Acidithiobacillus ferroazidans could reach 6.25 ×10^8 cells/mL within 39 hours. At the same time the conversion rate and production intensity was improved without reducing the special growth rate. The preliminary study on low-grade chalcopyrite bioleaching at low redox potentials was carried out. The results showed that the leaching rate of copper could reach 28.5 percent within 30 days, and the Fe2＋ , rather than sulfide minerals, was utilized as the bacteria growth energy in that leaching period. |
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| Keywords: | Acidithiobacillus ferrooxidans fed-batch culture sulfide minerals medium chalcopyrite bioleaehing |
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