| 零价铁强化生物还原法处理模拟地浸采铀废水 |
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| 引用本文： | 易正戟,曹新星,谢叶归.零价铁强化生物还原法处理模拟地浸采铀废水[J].衡阳师范学院学报,2009,30(3):61-64. |
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| 作者姓名： | 易正戟 曹新星 谢叶归 |
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| 作者单位： | 1. 衡阳师范学院,化学与材料科学系,湖南,衡阳,421008;中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002
2. 衡阳师范学院,化学与材料科学系,湖南,衡阳,421008 |
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| 基金项目： | 国家自然科学基金项目，衡阳师范学院科学基金资助，中国科学院地球化学研究所博士后基金，湖南省重点学科建设项目资助，衡阳师范学院精品课程资助项目 |
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| 摘 要： | 利用硫酸盐还原菌(SRB)、零价铁(ZVI)和SRB+ZVI三个不同的反应体系设计血清瓶序批式实验和连续流动柱式反应器实验对模拟地浸采铀废水进行处理.在此基础上探讨ZVI对于硫酸盐生物还原法处理废水的强化作用.厌氧序批式实验结果表明,SRB和ZVI对铀的固定具有明显的协同增强作用,当反应时间t=2、4h时,SRB+ZVI联合体系的铀去除效率比两对照组之和仍分别高出29.9%和13.4%.柱式反应器实验结果显示,SRB+ZVI复合反应器比未充填铁粉的单一SRB生物反应器在碱化废水pH值、提高脱硫效率和固定铀的能力方面效果更佳.
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| 关 键 词： | 硫酸盐还原菌 零价铁 地浸采铀 脱硫 |
Zerovalent Iron Enhanced Biotreatment of Simulated Wastewater from in Situ Leach Uranium Mining |
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| YI Zheng-ji,CAO Xin-xing,XIE Ye-gui.Zerovalent Iron Enhanced Biotreatment of Simulated Wastewater from in Situ Leach Uranium Mining[J].journal of Hengyang Normal University,2009,30(3):61-64. |
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| Authors: | YI Zheng-ji CAO Xin-xing XIE Ye-gui |
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| Institution: | 1.Department of Chemistry and Material Science;Hengyang Normal University;Hengyang Hunan 421008;China;2.State Key Laboratory of Environmental Geochemistry;Institute of Geochemistry;Chinese Academy of Sciences;Guiyang Guizhou 550002;China |
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| Abstract: | Batch and continuous flow column experiments based on three different systems,namely,sulfate reducing bacteria(SRB),zero-valent iron(ZVI) and SRB+ZVI,were conducted to treat simulated U(VI)-containing wastewater from in situ leach uranium mining.On the basis of this,whether ZVI can augment biological treatment of wastewater was also investigated.Anaerobic batch tests suggest that the combination of ZVI with SRB can enhance the removal of U(VI) synergistically.The removal efficeiency of U(VI) was obviously h... |
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