On-line Biofilm Strength Detection in Cross-flow Membrane Filtration Systems

Stanislaus Raditya Suwarno, Wenhai Huang, Yong-Min Chew, Sio Hoong Henrich Tan, Augustinus Elmer Trisno, Yan Zhou

Research output: Contribution to journalArticlepeer-review

9 Citations (SciVal)
84 Downloads (Pure)


A fluid dynamic gauging (FDG) technique was used for on-line and in situ measurements of Pseudomonas aeruginosa PAO1 biofilm thickness and strength on flat sheet polyethersulphone membranes. The measurements are the first to be successfully conducted in a membrane cross-flow filtration system under constant permeation. In addition, FDG was used to demonstrate the removal behaviour of biofilms through local biofilm strength and removal energy estimation, which other conventional measurements such as flux and TMP cannot provide. The findings suggest that FDG can provide valuable additional information related to biofilm properties that have not been measured by other monitoring methods.

Original languageEnglish
Pages (from-to)123-131
Number of pages9
JournalBiofouling: The Journal of Bioadhesion and Biofilm Research
Issue number2
Early online date22 Dec 2017
Publication statusPublished - 2018


  • Fluid dynamic gauging (FDG), biofilm strength, biofilm thickness, membrane biofouling

ASJC Scopus subject areas

  • Chemical Engineering(all)


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