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首页> 外文期刊>Journal of Hazardous Materials >Metallic ions catalysis for improving bioleaching yield of Zn and Mn from spent Zn-Mn batteries at high pulp density of 10%
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Metallic ions catalysis for improving bioleaching yield of Zn and Mn from spent Zn-Mn batteries at high pulp density of 10%

机译：金属离子催化以提高纸浆密度为10％的废Zn-Mn电池中Zn和Mn的生物浸出率

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摘要

Bioleaching of spent batteries was often conducted at pulp density of 1.0% or lower. In this work, metallic ions catalytic bioleaching was used for release Zn and Mn from spent ZMBs at 10% of pulp density. The results showed only Cu2+ improved mobilization of Zn and Mn from the spent batteries among tested four metallic ions. When Cu2+ content increased from 0 to 0.8 g/L, the maximum release efficiency elevated from 47.7% to 62.5% for Zn and from 30.9% to 62.4% for Mn, respectively. The Cu2+ catalysis boosted bioleaching of resistant hetaerolite through forming a possible intermediate CuMn2O4 which was subject to be attacked by Fe3+ based on a cycle of Fe3*/Fe2*. However, poor growth of cells, formation of KFe3(SO4)(2)(OH)(6) and its possible blockage between cells and energy matters destroyed the cycle of. Fe3+/Fe2+, stopping bioleaching of hetaerolite. The chemical reaction controlled model fitted best for describing Cu2+ catalytic bioleaching of spent ZMBs. (C) 2015 Elsevier B.V. All rights reserved.
机译：废电池的生物浸出通常在纸浆密度为1.0％或更低的情况下进行。在这项工作中，金属离子催化生物浸出用于以纸浆密度的10％从废ZMBs中释放Zn和Mn。结果表明，在测试的四种金属离子中，只有Cu2 +改善了废电池中Zn和Mn的迁移率。当Cu2 +含量从0增加到0.8 g / L时，最大释放效率对Zn从47.7％提高到62.5％，对Mn从30.9％提高到62.4％。 Cu2 +催化通过形成可能的中间体CuMn2O4来增强抗性陨铁矿的生物浸出，该中间体易受Fe3 +基于Fe3 * / Fe2 *循环的攻击。然而，细胞生长不良，KFe3（SO4）（2）（OH）（6）的形成及其在细胞和能量物质之间的可能阻塞破坏了其循环。 Fe3 + / Fe2 +，停止了生物沸石的生物浸出。化学反应控制模型最适合描述废ZMBs的Cu2 +催化生物浸出。 （C）2015 Elsevier B.V.保留所有权利。

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  • 来源
    《Journal of Hazardous Materials》 |2015年第15期|170-177|共8页
  • 作者

    Niu Zhirui; Huang Qifei; Wang Jia; Yang Yiran; Xin Baoping; Chen Shi;

  • 作者单位

    Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China|Yanan Univ, Sch Petr & Environm Engn, Yanan 716000, Peoples R China;

    Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China;

    Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China;

    Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China;

    Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China;

    Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Metallic ions catalysis; Bioleaching; Spent Zn-Mn batteries; High pulp density; Recovery; Valuable metals;

    机译：金属离子催化;生物浸出;锌锰废电池;高纸浆密度;回收率;有价值的金属;

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