筒状单室不锈钢电极微生物燃料电池回收重金属铅可行性分析

doi:10.12034/j.issn.1009-606X.217366

过程工程学报 ›› 2018, Vol. 18 ›› Issue (4): 858-865.DOI: 10.12034/j.issn.1009-606X.217366

筒状单室不锈钢电极微生物燃料电池回收重金属铅可行性分析

薄涛，季民*　

天津大学环境科学与工程学院，天津 300350

收稿日期:2017-10-20 修回日期:2017-12-27 出版日期:2018-08-22 发布日期:2018-08-15
通讯作者: 薄涛 botao233@163.com
基金资助:
天津市应用基础与前沿技术研究计划(青年项目);天津大学自主创新基金

Feasibility analysis for lead recovery in cylinder-shape, single-chamber microbial fuel cell with stainless steel electrodes

Tao BO, Min JI*

College of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China

Received:2017-10-20 Revised:2017-12-27 Online:2018-08-22 Published:2018-08-15

摘要/Abstract

摘要： 以筒状单室不锈钢电极微生物燃料电池(MFC)为对象，研究了去除其其中铅的可行性. 结果表明，在批式条件下，当初始Pb2+浓度为40 mg/L、pH为4.0时，Pb2+去除速度和效率分别达0.53±0.06 mg/(L?h)和96.71%±1.35%，最终以碱式碳酸铅的形式回收Pb2+. Pb2+去除过程中首先在MFC作用下还原成单质铅，再因暴露在空气中转化为碱式碳酸铅，但该MFC的电化学性能相对较低，输出电压、功率密度和库仑效率只有30.62±1.04 mV, 8.20±0.24 mW/m2和5.92%±0.21%.

关键词: 微生物燃料电池, 生物转化, Pb2+去除, 资源回收

Abstract: A cylinder-shape single-chamber microbial fuel cell (MFC) with stainless steel electrodes was employed for removing Pb2+ from artificial wastewater containing Pb2+. With initial Pb2+ concentration of 40 mg/L and pH=4.0 under fed-batch model, the Pb2+ removal rate and efficiency were 0.53±0.06 mg/(L?h) and 96.71%±1.35%, respectively. And Pb2+ was recovered through the form of hydrocerussite. Meanwhile, in the process of Pb2+ removal, Pb2+ was reduced to elemental lead in MFC, and then was transformed to hydrocerussite in air. But the electrochemical performance of MFC showed lower level. Output voltate, power density and columbic efficiency were only 30.62±1.04 mV, 8.20±0.24 mW/m2 and 5.92%±0.21%, respectively.

Key words: microbial fuel cell, bioconversion process, Pb2+ removal, resources recycle

薄涛季民. 筒状单室不锈钢电极微生物燃料电池回收重金属铅可行性分析[J]. 过程工程学报, 2018, 18(4): 858-865.

Tao BO Min JI. Feasibility analysis for lead recovery in cylinder-shape, single-chamber microbial fuel cell with stainless steel electrodes[J]. Chin. J. Process Eng., 2018, 18(4): 858-865.

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筒状单室不锈钢电极微生物燃料电池回收重金属铅可行性分析

Feasibility analysis for lead recovery in cylinder-shape, single-chamber microbial fuel cell with stainless steel electrodes

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