Issue 128, 2015

Characterization of fouling layers for in-line coagulation membrane fouling by apparent zeta potential

Abstract

This study investigated the apparent zeta potential of fouled membranes for in-line coagulation membrane fouling monitoring in micro-polluted water treatment. Results show that the apparent zeta potentials are consistent with transmembrane pressures (TMPs) in both a direct filtration process and in-line coagulation ultrafiltration (C-UF). Furthermore, the curve between apparent zeta potential and filtration resistance of C-UF conformed to the form of the Michaelis–Menten equation. The changes of apparent zeta potential along with periodical backwashing were in accordance with the trend of TMP change. As a whole, apparent zeta potential could be a useful indicator for monitoring membrane fouling.

Graphical abstract: Characterization of fouling layers for in-line coagulation membrane fouling by apparent zeta potential

Article information

Article type
Paper
Submitted
14 Sep 2015
Accepted
01 Dec 2015
First published
03 Dec 2015

RSC Adv., 2015,5, 106087-106093

Author version available

Characterization of fouling layers for in-line coagulation membrane fouling by apparent zeta potential

J. Wang, S. Yang, W. Guo, H. Ngo, H. Jia, J. Yang, H. Zhang and X. Zhang, RSC Adv., 2015, 5, 106087 DOI: 10.1039/C5RA18826A

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