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Membranes
Special Issues
Advances in Membrane Fouling and Cleaning
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Advances in Membrane Fouling and Cleaning

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

Deadline for manuscript submissions: closed (15 August 2021) | Viewed by 3311

Special Issue Editors

Dr. Onita Basu

E-Mail Website
Guest Editor
Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
Interests: water development; filtration; membrane; wastewater treatment; biofuel technology
Prof. Dr. Hongde Zhou

E-Mail Website
Co-Guest Editor
School of Engineering, University of Guelph, Guelph, ON N1G 2W1, Canada
Interests: membrane bioreactor processes for wastewater treatment; hybrid membrane technologies for NOM removal; ozonation and advanced oxidation processes; agricultural waste management; manure anaerobic digestion; wastewater reuse; water disinfection

Special Issue Information

Dear Colleagues,

Fouling is a ubiquitous challenge in membrane systems. On the one hand, fouling is a clear indicator that the membrane system is functioning well, as the phenomenon is intrinsically linked to the removal of undesirable pollutants or contaminants in raw water from the permeate of the membrane system. The assessment of the fouling mechanism (hydraulically vs. chemically reversible, irreversible, particular, adsorptive, biological, etc.) is key for recovering the membrane permeability. While polymeric membranes currently dominate the market, there is also an increasing interest in ceramic membranes, which provides an opportunity to explore both systems and assess their differing capacities with respected to fouling and cleaning. As such, it is necessary that researchers have the capacity to develop novel methodologies for assessing membrane fouling and subsequent cleaning regimes in order to ensure the successful integration of membrane systems into the growing challenges of water treatment.

Dr. Onita Basu
Prof. Dr. Hongde Zhou
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • membrane fouling
  • fouling indices
  • novel cleaning
  • chemically enhanced backwash
  • nanomaterial modifications

Published Papers (1 paper)

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Research

21 pages, 6292 KiB  
Article
Potential Pitfalls in Membrane Fouling Evaluation: Merits of Data Representation as Resistance Instead of Flux Decline in Membrane Filtration
by Bastiaan Blankert, Bart Van der Bruggen, Amy E. Childress, Noreddine Ghaffour and Johannes S. Vrouwenvelder
Membranes 2021, 11(7), 460; https://doi.org/10.3390/membranes11070460 - 22 Jun 2021
Cited by 5 | Viewed by 2876
Abstract
The manner in which membrane-fouling experiments are conducted and how fouling performance data are represented have a strong impact on both how the data are interpreted and on the conclusions that may be drawn. We provide a couple of examples to prove that [...] Read more.
The manner in which membrane-fouling experiments are conducted and how fouling performance data are represented have a strong impact on both how the data are interpreted and on the conclusions that may be drawn. We provide a couple of examples to prove that it is possible to obtain misleading conclusions from commonly used representations of fouling data. Although the illustrative example revolves around dead-end ultrafiltration, the underlying principles are applicable to a wider range of membrane processes. When choosing the experimental conditions and how to represent fouling data, there are three main factors that should be considered: (I) the foulant mass is principally related to the filtered volume; (II) the filtration flux can exacerbate fouling effects (e.g., concentration polarization and cake compression); and (III) the practice of normalization, as in dividing by an initial value, disregards the difference in driving force and divides the fouling effect by different numbers. Thus, a bias may occur that favors the experimental condition with the lower filtration flux and the less-permeable membrane. It is recommended to: (I) avoid relative fouling performance indicators, such as relative flux decline (J/J0); (II) use resistance vs. specific volume; and (III) use flux-controlled experiments for fouling performance evaluation. Full article
(This article belongs to the Special Issue Advances in Membrane Fouling and Cleaning)
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