On-line biofilm strength detection in cross-flow membrane filtration systems

On-line biofilm strength detection in cross-flow membrane filtration systems

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...

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Bibliographic Details
Main Authors: Suwarno, Stanislaus Raditya, Huang, Wenhai, Chew, John Y. M., Tan, Henrich Sio Hoong, Trisno, Elmer Augustinus, Zhou, Yan
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Engineering::Civil engineering
Fluid Dynamic Gauging (FDG)
Biofilm Strength
Online Access:https://hdl.handle.net/10356/142469
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Institution: Nanyang Technological University
Language: English
Description
Summary: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.

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