Characterization of fouling and concentration polarization in ion exchange membrane by in-situ electrochemical impedance spectroscopy
作者: Lingling ZhangHui JiaJie WangHaitao WenJuan Li
作者单位: 1State Key Laboratory of Membrane Filtration and Processes, Tianjin Polytechnic University, Tianjin, 300387, China
2School of Environmental Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
3Corresponding author. State Key Laboratory of Membrane Filtration and Processes, Tianjin Polytechnic University, Tianjin, 300387, China
刊名: Journal of Membrane Science, 2020, Vol.594
来源数据库: Elsevier Journal
DOI: 10.1016/j.memsci.2019.117443
关键词: Electrochemical impedance spectroscopy (EIS)In-situ monitoringConcentration polarizationMembrane foulingMembrane cleaning
英文摘要: Abstract(#br)The electrochemical impedance spectroscopy (EIS) was used to monitor the ion transport of the ion exchange membrane (IEM) interface with ectopic monitoring. But the general monitoring methods were lack of the information in concentration polarization (CP) and fouling formation. In this paper, an in-situ method for monitoring the ion mass transfer by EIS was established which can distinguish the contribution of membrane fouling and CP. The results showed that the in-situ EIS could more comprehensively monitor the desalination process. Membrane fouling, especially the formation of fouling layer on membrane surface, promoted the CP at membrane/solution interface. This was mainly because the ion mass transfer was hindered by serious membrane fouling, so that the ion concentration...
全文获取路径: Elsevier  (合作)
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影响因子:4.093 (2012)

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关键词翻译
关键词翻译
  • impedance 阻抗
  • membrane 
  • polarization 极化
  • concentration 浓度
  • exchange 交换
  • spectroscopy 分光学
  • fouling 污底