Membrane Biofouling Mitigation: From Fundamental Concepts to Applicative Solutions

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Processing and Engineering".

Deadline for manuscript submissions: closed (20 June 2022) | Viewed by 6158

Special Issue Editor


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Guest Editor
The Department of Desalination & Water Treatment (DWT), The Zuckerberg Institute for Water Research (ZIWR), The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion 8499000, Israel
Interests: (i) Bacterial biofilms and biofouling of pressure-driven membranes (RO, NF, and UF): The physico-chemical interactions between the membrane, as well as other abiotic surfaces, and the fouling layers are critical to explaining the mechanisms underlying a decrease in the unit performance. Fouling layers' physical, chemical, and mechanical (viscoelasticity) parameters are currently the main focus of Professor Herzberg’s research; (ii) Novel methods for both monitoring and cleaning fouling layers in pressure-driven membranes and linking fouling layers’ properties with their removal and membrane cleaning (the mode of action of agents); (iii) Mechanisms underlying the inhibition of biofilm formation and organic fouling layers’ adhesion on "anti-fouling" modified-surface membranes (the mode of action of surface modification)
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Special Issue Information

Dear Colleagues,

The editorial board of Membranes cordially invites you to submit an article to a Special Issue on "Membrane Biofouling Mitigation: From Fundamental Concepts to Applicative Solutions". Bacteria seldom live and grow as single cells; rather, they usually live in biofilms—self-produced matrices of extracellular polymeric substances, comprising mainly polysaccharides, proteins, and DNA. In water and wastewater treatment processes, bacterial biofilms dramatically reduce the performance of the various treatment units in a process termed "biofouling". This Special Issue of the Membranes journal will focus on the development of microbial biofilms on membranes and on their effects on membrane performance. Articles for this interdisciplinary Special Issue should focus on either the fundamental or the applicative aspects of membrane biofouling, including, most prominently, the interactions between the various components of the biofouling layers and the membrane, the mechanisms underlying membrane biofouling, and biofouling control strategies. Articles may include (but are not limited to) studies of the physical-chemical and mechanical (viscoelasticity) characteristics of biofilms, the physiology of the biofouling layers, issues related to microbial ecology, the development and characterization of novel membranes with anti-biofouling properties, the prevention of biofouling by various strategies (such as feed water pre-treatment), and methods for monitoring biofilms on and cleaning biofilms from membranes. We especially encourage studies that discuss the inter-relationships between these issues and membrane performance.

Prof. Dr. Moshe Herzberg
Guest Editor

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Keywords

  • biofilms
  • membranes
  • biofouling
  • wastewater treatment
  • desalination
  • membrane cleaning
  • microbial communities

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Published Papers (2 papers)

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Research

19 pages, 4088 KiB  
Article
Phosphorus Concentration in Water Affects the Biofilm Community and the Produced Amount of Extracellular Polymeric Substances in Reverse Osmosis Membrane Systems
by Luisa Javier, Laura Pulido-Beltran, Joop Kruithof, Johannes S. Vrouwenvelder and Nadia M. Farhat
Membranes 2021, 11(12), 928; https://doi.org/10.3390/membranes11120928 - 26 Nov 2021
Cited by 5 | Viewed by 2333
Abstract
Biofouling is a problem that hinders sustainable membrane-based desalination and the stratification of bacterial populations over the biofilm’s height is suggested to compromise the efficiency of cleaning strategies. Some studies reported a base biofilm layer attached to the membrane that is harder to [...] Read more.
Biofouling is a problem that hinders sustainable membrane-based desalination and the stratification of bacterial populations over the biofilm’s height is suggested to compromise the efficiency of cleaning strategies. Some studies reported a base biofilm layer attached to the membrane that is harder to remove. Previous research suggested limiting the concentration of phosphorus in the feed water as a biofouling control strategy. However, the existence of bacterial communities growing under phosphorus-limiting conditions and communities remaining after cleaning is unknown. This study analyzes the bacterial communities developed in biofilms grown in membrane fouling simulators (MFSs) supplied with water with three dosed phosphorus conditions at a constant biodegradable carbon concentration. After biofilm development, biofilm was removed using forward flushing (an easy-to-implement and environmentally friendly method) by increasing the crossflow velocity for one hour. We demonstrate that small changes in phosphorus concentration in the feed water led to (i) different microbial compositions and (ii) different bacterial-cells-to-EPS ratios, while (iii) similar bacterial biofilm populations remained after forward flushing, suggesting a homogenous bacterial community composition along the biofilm height. This study represents an exciting advance towards greener desalination by applying non-expensive physical cleaning methods while manipulating feed water nutrient conditions to prolong membrane system performance and enhance membrane cleanability. Full article
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12 pages, 2124 KiB  
Article
Performance and Microbial Community of Different Biofilm Membrane Bioreactors Treating Antibiotic-Containing Synthetic Mariculture Wastewater
by Huining Zhang, Xin Yuan, Hanqing Wang, Shuoqi Ma and Bixiao Ji
Membranes 2020, 10(10), 282; https://doi.org/10.3390/membranes10100282 - 14 Oct 2020
Cited by 8 | Viewed by 2926
Abstract
The performance of pollutant removals, tetracycline (TC) and norfloxacin (NOR) removals, membrane fouling mitigation and the microbial community of three Anoxic/Oxic membrane bioreactors (AO-MBRs), including a moving bed biofilm MBR (MBRa), a fixed biofilm MBR (MBRb) and an AO-MBR (MBRc) for control, were [...] Read more.
The performance of pollutant removals, tetracycline (TC) and norfloxacin (NOR) removals, membrane fouling mitigation and the microbial community of three Anoxic/Oxic membrane bioreactors (AO-MBRs), including a moving bed biofilm MBR (MBRa), a fixed biofilm MBR (MBRb) and an AO-MBR (MBRc) for control, were compared in treating antibiotic-containing synthetic mariculture wastewater. The results showed that MBRb had the best effect on antibiotic removal and membrane fouling mitigation compared to the other two bioreactors. The maximum removal rate of TC reached 91.65% and the maximum removal rate of NOR reached 45.46% in MBRb. The addition of antibiotics had little effect on the removal of chemical oxygen demand (COD) and ammonia nitrogen (NH4+-N)—both maintained more than 90% removal rate during the entire operation. High-throughput sequencing demonstrated that TC and NOR resulted in a significant decrease in the microbial diversity and the microbial richness MBRs. Flavobacteriia, Firmicutes and Azoarcus, regarded as drug-resistant bacteria, might play a crucial part in the removal of antibiotics. In addition, the dynamics of microbial community had a great change, which included the accumulation of resistant microorganisms and the gradual reduction or disappearance of other microorganisms under antibiotic pressure. The research provides an insight into the antibiotic-containing mariculture wastewater treatment and has certain reference value. Full article
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