Analysis of filtration characteristics in submerged microfiltration for drinking water treatment

Sangho Lee, Pyung Kyu Park, Jae Hyuk Kim, Kyung Min Yeon, Chung Hak Lee

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Hollow fiber membranes have been widely employed for water and wastewater treatments. Nevertheless, understanding the filtration characteristics of hollow fiber membranes is complicated by the axial distributions of transmembrane pressure (TMP) and flux, which are key factors for both fouling control and module design. In this study, model equations to account for different fouling mechanisms were derived to analyze the performance of submerged hollow fiber systems with different conditions in terms of feed water characteristics and membrane material. A series of experiments with synthetic feed and raw water were carried out using hydrophilic and hydrophobic membrane modules. The model successfully fits the experimental results for synthetic feed as well as raw water. The major fouling mechanisms for filtration of raw water using hydrophilic and hydrophobic membranes are identified as cake formation and standard blocking, respectively. The model calculations indicate that the distributions of flux and cake (fouling) resistance are sensitive to the fiber length of the membrane.

Original languageEnglish
Pages (from-to)3109-3121
Number of pages13
JournalWater Research
Volume42
Issue number12
DOIs
Publication statusPublished - 2008 Jun

All Science Journal Classification (ASJC) codes

  • Ecological Modelling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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