| 超声辅助生物淋滤废旧Zn-C电池锌锰溶出的研究 |
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| 引用本文： | 牛志睿,江明荣,李倩,石洋,刘继青,袁亚飞,刘羽,张永涛,辛宝平.超声辅助生物淋滤废旧Zn-C电池锌锰溶出的研究[J].环境科学学报,2016,36(9):3313-3321. |
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| 作者姓名： | 牛志睿 江明荣 李倩 石洋 刘继青 袁亚飞 刘羽 张永涛 辛宝平 |
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| 作者单位： | 延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,延安大学石油工程与环境工程学院, 延安 716000,北京理工大学化工与环境学院, 北京 100081 |
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| 基金项目： | 国家自然科学基金资助项目（No.21277012）；陕西省教育厅专项科研计划项目（No.15JK1825）；陕西省高水平大学专项资金项目（No.2013SXTS03）；国家级大学生创新创业训练计划项目（No.201410719012） |
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| 摘 要： | 以氧化硫硫杆菌(A.thiooxidans)为淋滤菌株对废旧Zn-C电池电极材料中的Zn、Mn进行了生物浸提,比较研究了化学浸提、生物淋滤和不同超声辅助方法生物淋滤体系下的Zn、Mn的溶出效率及溶出动力学.结果表明:不同超声辅助方法中,超声+生物淋滤体系Zn、Mn溶出最优,Zn、Mn的最大溶出率分别为94.2%和65.5%,并提高了溶释速率.此外,对于Mn的溶出,化学淋滤体系符合边界层扩散控制模型,生物淋滤和超声+生物淋滤体系符合收缩核Stoke's regime模型,而Zn的溶出均符合化学反应控制模型.
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| 关 键 词： | 生物淋滤 超声 废旧Zn-C电池 溶出动力学 锌锰 |
| 收稿时间： | 2015/10/23 0:00:00 |
| 修稿时间： | 2015/11/23 0:00:00 |
The release of Zn and Mn from spent Zn-C batteries by using ultrasound-assisted bioleaching |
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| NIU Zhirui,JIANG Mingrong,LI Qian,SHI Yang,LIU Jiqing,YUAN Yafei,LIU Yu,ZHANG Yongtao and XIN Baoping.The release of Zn and Mn from spent Zn-C batteries by using ultrasound-assisted bioleaching[J].Acta Scientiae Circumstantiae,2016,36(9):3313-3321. |
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| Authors: | NIU Zhirui JIANG Mingrong LI Qian SHI Yang LIU Jiqing YUAN Yafei LIU Yu ZHANG Yongtao and XIN Baoping |
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| Institution: | School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000,School of Petroleum and Environment Engineering, Yan''an University, Yan''an 716000 and School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081 |
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| Abstract: | In this study, A. thiooxidans was used for bioleaching Zn and Mn from the spent Zn-C batteries electrode materials. The release efficiency and dynamics of Zn and Mn among the chemical leaching, the biological leaching and the different ultrasound-assisted bioleaching systems were compared. The results show that ultrasound-assisted-bioleaching was optimal for the dissolution of Zn and Mn at different ultrasound-assisted systems, which was better than the biological leaching and chemical leaching systems. the optimal leaching rates of Zn and Mn in the spent Zn-C batteries reached to 94.2% and 61.5% respectively. In addition, dissolution kinetics studies show that the chemical reaction controlled model described best bioleaching behavior of Zn for all the systems, the Stoke''s regime model best described bioleaching behavior of Mn for the bioleaching and ultrasound-assisted-bioleaching systems and the diffusion controlled model was better than other models for the chemical leaching system. |
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| Keywords: | bioleaching ultrasound the spent Zn-C batteries dissolution kinetics Zn and Mn |
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