化工学报 ›› 2019, Vol. 70 ›› Issue (6): 2027-2035.DOI: 10.11949/j.issn.0438-1157.20181308

• 综述与专论 • 上一篇    下一篇

微生物燃料电池处理重金属废水的研究进展

张婧然(),周璇,王辉,朱丹丹,李先宁   

  1. 东南大学能源与环境工程学院,江苏 南京 210096
  • 收稿日期:2018-11-12 修回日期:2019-02-14 出版日期:2019-06-05 发布日期:2019-06-05
  • 通讯作者: 张婧然
  • 基金资助:
    江苏省自然科学基金项目(BK20171351)

Research advances in treatment of heavy metal wastewater by microbial fuel cells

Jingran ZHANG(),Xuan ZHOU,Hui WANG,Dandan ZHU,Xianning LI   

  1. College of Energy and Environmental Engineering, Southeast University, Nanjing 210096, Jiangsu, China
  • Received:2018-11-12 Revised:2019-02-14 Online:2019-06-05 Published:2019-06-05
  • Contact: Jingran ZHANG

摘要:

基于已有研究基础,解析了在微生物燃料电池(microbial fuel cell,MFC)特有构型和产电条件下涉及的重金属去除机制,综述了装置构型、阴极类型、重金属浓度、外接电阻、pH、电子受体类型等因素对MFC产电性能及重金属去除效能的影响。从生物电化学作用、微生物作用、电子受体竞争机制等侧面,阐明各单一因素对重金属去除速率、还原产物的影响和作用。提出今后MFC去除重金属废水的研究需立足于实际废水,构建中试装置为实际应用提供数据支撑。进一步确定各影响因素的主次地位及作用方向,根据已有理论基础调控各影响因素,得到更快的去除速率和理想的还原产物。同时筛选适于重金属分离的电极材料及考察可实现产物回收的物理化学方法,以期实现重金属真正意义上的回收。

关键词: 燃料电池, 废水, 污染, 重金属, 影响因素

Abstract:

Based on the existing research basis, the mechanism of heavy metal removal involved in the special configuration and power generation conditions of microbial fuel cell (MFC) was analyzed. The effects of device configuration, cathode type, heavy metal concentration, external resistance, pH, electron acceptor type and other factors on MFC production performance and heavy metal removal efficiency were reviewed. From the aspects of bioelectrochemistry, microbial influence, and electron acceptor competition mechanism, the effects of single factors on heavy metal removal rate and reduction products were elucidated. It is proposed that the research on MFC removal of heavy metal wastewater in the future needs to be based on the actual wastewater and construct a pilot plant to provide data support for practical applications. Further, determine the primary and secondary status and direction of each influencing factor, and adjust the influencing factors according to the existing theoretical basis to obtain a faster removal rate and an ideal reduction product. At the same time, the electrode materials suitable for heavy metal separation are screened and the physical and chemical methods for product recovery can be investigated in order to realize the real recovery of heavy metals.

Key words: fuel cell, wastewater, pollution, heavy metal, influencing factor

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