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周秀丽, 郑越, 王淑华, 陈必链, 赵峰. 电子垃圾生物浸出的电化学强化机制[J]. 环境化学, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
引用本文: 周秀丽, 郑越, 王淑华, 陈必链, 赵峰. 电子垃圾生物浸出的电化学强化机制[J]. 环境化学, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
shu
ZHOU Xiuli, ZHENG Yue, WANG Shuhua, CHEN Bilian, ZHAO Feng. Mechanisms of bioleaching electrochemstry-enhanced of electronic wastes[J]. Environmental Chemistry, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
Citation: ZHOU Xiuli, ZHENG Yue, WANG Shuhua, CHEN Bilian, ZHAO Feng. Mechanisms of bioleaching electrochemstry-enhanced of electronic wastes[J]. Environmental Chemistry, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
shu

电子垃圾生物浸出的电化学强化机制

  • 1.

    福建师范大学生命科学学院, 福州, 350108;

  • 2.

    中国科学院城市污染物转化重点实验室, 中国科学院城市环境研究所, 厦门, 361021

  • 基金项目:

    国家重大科学仪器设备开发专项课题（2013YQ17058508），国家自然科学基金（41471260）和厦门市科技计划项目资助.

Mechanisms of bioleaching electrochemstry-enhanced of electronic wastes

  • 1.

    College of Life Science, Fujian Normal University, Fuzhou, 350108, China;

  • 2.

    Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China

  • Fund Project: Supported by the National Key Scientific Instrument and Equipment Development Projects, China(2013YQ17058508), National Natural Science Foundation of China(41471260) and Science and Technology Program in Xiamen.

  • 摘要: 电子垃圾的不当处理已造成了严重的环境和健康问题.生物浸出技术具有低成本和环境友好的优点，为电子垃圾的有效资源化提供了一种选择，但是，目前该技术在实际应用中存在耗时长的瓶颈.电子垃圾生物浸出的反应机制、功能微生物的胞外电子传递都涉及到氧化还原反应，因此，电化学反应可提高电子垃圾中金属的生物浸出效率.本文总结了生物浸出过程中常见的功能菌种及其胞外电子传递途径，以此为基础，阐述了通过电势强化、金属阳离子强化、直接电子调控和间接电子调控的电化学强化方法，以期推动电子垃圾资源化的实际应用.
    Abstract: Improper treatment of electronic wastes (E-wastes) has caused serious environmental and health problems. Bioleaching has provided a means for the treatment of E-waste due to its low-cost and eco-friendly advantages. However, the application of bioleaching in the E-waste is limited for its time-consuming disadvantage. Actually, the process involves redox chemical reactions and the extracellular electron transfer of functional microorganisms. Therefore, electrochemical reactions can enhance bioleaching of metals in the E-waste. This review summarized the main iron-oxidizing and sulfur-oxidizing bacteria species in the bioleaching and their electron transfer processes. On this basis, we described how to improve bioleaching efficiency through electrochemical methods including electric potential, metal ions, direct electron transfer and indirect electron transfer. It is hoped that this work will promote the practical application in the resource utilization of electronic waste.
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  • 收稿日期:  2017-02-01
  • 刊出日期:  2017-10-15
周秀丽, 郑越, 王淑华, 陈必链, 赵峰. 电子垃圾生物浸出的电化学强化机制[J]. 环境化学, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
引用本文: 周秀丽, 郑越, 王淑华, 陈必链, 赵峰. 电子垃圾生物浸出的电化学强化机制[J]. 环境化学, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
shu
ZHOU Xiuli, ZHENG Yue, WANG Shuhua, CHEN Bilian, ZHAO Feng. Mechanisms of bioleaching electrochemstry-enhanced of electronic wastes[J]. Environmental Chemistry, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
Citation: ZHOU Xiuli, ZHENG Yue, WANG Shuhua, CHEN Bilian, ZHAO Feng. Mechanisms of bioleaching electrochemstry-enhanced of electronic wastes[J]. Environmental Chemistry, 2017, 36(10): 2100-2106. doi: 10.7524/j.issn.0254-6108.2017020103
shu

电子垃圾生物浸出的电化学强化机制

  • 1.  福建师范大学生命科学学院, 福州, 350108;
  • 2.  中国科学院城市污染物转化重点实验室, 中国科学院城市环境研究所, 厦门, 361021
  • 收稿日期:  2017-02-01
基金项目:

国家重大科学仪器设备开发专项课题（2013YQ17058508），国家自然科学基金（41471260）和厦门市科技计划项目资助.

摘要: 电子垃圾的不当处理已造成了严重的环境和健康问题.生物浸出技术具有低成本和环境友好的优点，为电子垃圾的有效资源化提供了一种选择，但是，目前该技术在实际应用中存在耗时长的瓶颈.电子垃圾生物浸出的反应机制、功能微生物的胞外电子传递都涉及到氧化还原反应，因此，电化学反应可提高电子垃圾中金属的生物浸出效率.本文总结了生物浸出过程中常见的功能菌种及其胞外电子传递途径，以此为基础，阐述了通过电势强化、金属阳离子强化、直接电子调控和间接电子调控的电化学强化方法，以期推动电子垃圾资源化的实际应用.

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