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Inorganic Membrane Filtration, Modeling Microfiltration and Ultrafiltration

Membrane Separation and Transport

  1. Weihong Xing,
  2. Weixing Li,
  3. Yiqun Fan,
  4. Wanqin Jin,
  5. Nanping Xu

Published Online: 27 SEP 2013

DOI: 10.1002/9781118522318.emst016

Encyclopedia of Membrane Science and Technology

Encyclopedia of Membrane Science and Technology

How to Cite

Xing, W., Li, W., Fan, Y., Jin, W. and Xu, N. 2013. Inorganic Membrane Filtration, Modeling Microfiltration and Ultrafiltration. Encyclopedia of Membrane Science and Technology. 1–41.

Author Information

  1. Nanjing University of Technology, Nanjing, China

Publication History

  1. Published Online: 27 SEP 2013

Abstract

Inorganic membranes for microfiltration and ultrafiltration are mainly ceramic based. Ceramic membranes are sintered with metal oxide powders, and the pores formed among particles provide the separation media. This article presents a basic framework for modeling microfiltration and ultrafiltration and to optimize the membrane design. Here, the relationship between water permeability and membrane microstructure parameters (pore size, thickness, and porosity) was built up. Then, the model was developed for microfiltration and ultrafiltration of micrometer-sized and nanosized particle suspensions, respectively. The predicted results show good agreement with experimental data of filtration flux with time.

Keywords:

  • ceramic membrane;
  • microfiltration;
  • particle suspension;
  • model;
  • microstructure;
  • membrane pore size;
  • ultrafiltration;
  • permeability;
  • particle size distribution;
  • pore size distribution