Welcome to visit The Chinese Journal of Process Engineering, Today is

Research Progress in Fouling of Ion Exchange Membrane for Electrodialysis Desalination of Industrial Wastewater

  • LIU Lu ZHAO Zhi-juan LI Ya SHI SHAO-yuan WU Xin-min WANG Li-ying LI Lin
Expand
  • National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences Institute of Process Engineering, China Academy of Sciences Univ. CAS, Beijing 100049, China; 3. Sch. Chem. Eng., Beijing Institute of Petrochemical Technolog Anshan Iron and Steel Group Corporation Anshan Iron and Steel Group Corporation

Received date: 2015-03-13

  Revised date: 2015-07-27

  Online published: 2015-10-20

Abstract

The lasted research progresses related to types, properties, and influential factors of membrane fouling occurring in industrial wastewater desalination by electrodialysis are summarized. Inorganic fouling mainly results from the scaling of Ca2+, Mg2+ or other multivalent ions on the surface or inside of ion exchange membrane, in which the polarization or solution supersaturated precipitation leads to the membrane fouling. Organic fouling results from the deposition of proteins, humate, surfactant or other macromolecular organic matters on the surface or in inside of membrane. The main cause of anion membrane fouling by organic matters is related to the electrostatic interaction between negatively charged organic matters and anion exchange membrane with positively charged groups and the affinity interactions between the membrane matrix and aromatic compounds, and the membrane fouling is also related to the molecular size and network structure of organic compounds. The formation mechanisms and properties of membrane fouling are closely related to the applied electric current, coexisting components, temperature, pH value and running time, etc. The membrane fouling can result in the decrease of conductivity, ion exchange capacity, water content and limiting current density. Moreover, the effect of organic fouling on the electrodialysis performance is more obvious than that of inorganic fouling. The membrane fouling caused by the formation of organic compound gel layer can be quantitatively expressed by membrane fouling index for electrodialysis.

Cite this article

LIU Lu ZHAO Zhi-juan LI Ya SHI SHAO-yuan WU Xin-min WANG Li-ying LI Lin . Research Progress in Fouling of Ion Exchange Membrane for Electrodialysis Desalination of Industrial Wastewater[J]. The Chinese Journal of Process Engineering, 2015 , 15(5) : 881 -891 . DOI: 10.12034/j.issn.1009-606X.215160

Outlines

/