Variation of specific cake resistance according to size and fractal dimension of chemical flocs in a coagulation-microfiltration process

Pyungkyu Park, Chung Hak Lee, Sangho Lee

Research output: Contribution to journalArticle

28 Citations (Scopus)


A theoretical model to predict the porosity and specific resistance of cake layer was developed for better understanding a coagulation-microfiltration system for drinking water production. The model was based on fractal theory and incorporated intra-floc and inter-floc porosities as well as cake collapse effect. The cake porosity was also determined experimentally using a confocal laser scanning microscope (CLSM) and image analysis to verify the validity of the model. Using the model, specific cake resistances can be simulated as a function of floc size and fractal dimension. The specific cake resistance decreases upon increasing the floc size and decreasing the fractal dimension.

Original languageEnglish
Pages (from-to)213-215
Number of pages3
Issue number1-3
Publication statusPublished - 2006 Nov 20


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

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