A novel composite conductive microfiltration membrane and its anti-fouling performance with an external electric field in membrane bioreactors

Scientific Reports
Jian HuangZhichao Wu

Abstract

Membrane fouling remains an obstacle to wide-spread applications of membrane bioreactors (MBRs) for wastewater treatment and reclamation. Herein, we report a simple method to prepare a composite conductive microfiltration (MF) membrane by introducing a stainless steel mesh into a polymeric MF membrane and to effectively control its fouling by applying an external electric field. Linear sweep voltammetry and electrochemical impedance spectroscopy analyses showed that this conductive membrane had very good electrochemical properties. Batch tests demonstrated its anti-fouling ability in filtration of bovine serum albumin, sodium alginate, humic acid and silicon dioxide particles as model foulants. The fouling rate in continuous-flow MBRs treating wastewater was also decreased by about 50% for this conductive membrane with 2 V/cm electric field compared to the control test during long-term operation. The enhanced electrostatic repulsive force between foulants and membrane, in-situ cleaning by H2O2 generated from oxygen reduction, and decreased production of soluble microbial products and extracellular polymeric substances contributed to fouling mitigation in this MBR. The results of this study shed light on the control strategy of ...Continue Reading

References

Aug 1, 1995·Applied Microbiology and Biotechnology·B FrølundP H Nielsen
Sep 22, 2005·Environmental Science & Technology·Katsuki KimuraYoshimasa Watanabe
Jul 24, 2007·Water Research·Mark D Williams, Massoud Pirbazari
Apr 2, 2010·Environmental Science & Technology·Khalid Bani-Melhem, Maria Elektorowicz
May 25, 2011·Advanced Materials·Myung-Hyun RyouJang Wook Choi
Jul 14, 2011·Environmental Science & Technology·Perry L McCartyJeonghwan Kim
Oct 8, 2011·Environmental Science & Technology·Yun-Kun WangHan-Qing Yu
Apr 27, 2012·Bioresource Technology·Mustafa Evren ErsahinJules B van Lier
Feb 19, 2013·Environmental Science & Technology·Charles-François de LannoyMark R Wiesner

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Citations

Jun 27, 2017·Journal of Hazardous Materials·Xueye WangZhichao Wu
Aug 10, 2017·Membranes·Patrizia FormosoFiore Pasquale Nicoletta
Feb 11, 2020·Frontiers in Bioengineering and Biotechnology·Edris HoseinzadehAbbas Rezaee
Jun 12, 2019·Environmental Science & Technology·Wensi ChenXing Xie
Oct 30, 2021·The Journal of Physical Chemistry. B·Mei FengRuhong Zhou

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Methods Mentioned

BETA
membrane filtration
dynamic light scattering

Software Mentioned

ImageJ
NanoScope Analysis )

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