| 异养微生物异化还原大洋多金属结核 |
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| 引用本文： | 冯雅丽,李浩然.异养微生物异化还原大洋多金属结核[J].北京科技大学学报,2006,28(12):1111-1114. |
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| 作者姓名： | 冯雅丽 李浩然 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083
2. 中国科学院过程工程研究所生化工程国家重点实验室,北京,100080 |
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| 基金项目： | 国家自然科学基金
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国家长远发展计划项目
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国家重点基础研究发展计划(973计划) |
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| 摘 要： | 从太平洋海底沉积物中分离到的四株异养微生物,进行耐酸和耐金属的驯化,在好氧和厌氧条件下进行异养微生物异化还原大洋多金属结核的实验,并分析了浸出机理. 结果表明:厌氧浸出优于好氧浸出,pH控制在2.5～3,浸出时间为3d,浸出率可达98%. 利用异养微生物还原浸出大洋多金属矿浸出速率高,矿体无需通气,投资低,易于操作,且环境友好,可在回收有价金属的同时进行固体废弃物和有机废弃物综合治理.
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| 关 键 词： | 大洋多金属结核 异养微生物 异化还原 浸出 异养微生物 异化还原 大洋多金属结核 microbes nodules marine 综合治理 有机废弃物 固体废弃物 有价金属 回收 环境友好 操作 投资 通气 矿体 浸出速率 多金属矿 还原浸出 利用 |
| 收稿时间： | 2005-09-28 |
| 修稿时间： | 2005-10-31 |
Dissimilatory reduction of marine nodules with heterotrophic microbes |
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| FENG Yali,LI Haoran.Dissimilatory reduction of marine nodules with heterotrophic microbes[J].Journal of University of Science and Technology Beijing,2006,28(12):1111-1114. |
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| Authors: | FENG Yali LI Haoran |
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| Institution: | 1. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China ;2. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Four heterotrophic microbes were separated from deep sea floor sediment of the Pacific Ocean. The dissimilatory reduction principles of these heterotrophic microbes were explored after their acclimatization to acid and metals. The results indicate that anaerobic leaching is better than aerobic condition, the optimum pH range is 2.5 to 3, the leaching time is 3?d, and the leaching rate is up to 98%. It shows that dissimilatory reduction of marine nodules with heterotrophic microbes has such advantages as higher leaching rate, no ventilation, lower investment, easier operation and better environment. The solid and organic waste can be treated at the same time coupling valuable metal recovery. |
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| Keywords: | marine nodules heterotrophic microbe dissimilatory reduction leaching |
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