Special Issue "Troubleshooting of Membrane Processes in Real Operation"

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 August 2021) | Viewed by 3774

Special Issue Editor

Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic
Interests: water treatment; membrane processes; nanofibers; ion exchange; power engineering; thermal insulation textiles

Special Issue Information

Dear Colleagues,

I am pleased to announce this Special Issue of Membranes, entitled “Troubleshooting of the membrane technologies in real operation.” The topic aims to address real, common, daily, and general problems with keeping membrane technology in the operation. It is wide topic, advancing people with real experience in membrane and (but not limited to) the water treatment industry. The area includes avoiding membrane scaling, avoiding piping corrosion, sealing modules, avoiding membrane fouling, ion concentration polarization, parasitic currents, inappropriate sealing, development of spacers, problems with pretreatment, problems with endplates in electromembrane processes, gasketing, and Clean in Place.

Dr. Jaromír Marek
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 2200 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 technologies
  • Troubleshooting
  • Clogging
  • Fouling
  • Parasitic current
  • Sealing of modules
  • Corrosion of piping
  • Endplate material

Published Papers (2 papers)

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Research

Article
Reuse of Water in Laundry Applications with Micro- and Ultrafiltration Ceramic Membrane
Membranes 2022, 12(2), 223; https://doi.org/10.3390/membranes12020223 - 15 Feb 2022
Cited by 7 | Viewed by 1948
Abstract
This study compares the performance of a microfiltration membrane, made by silicon carbide (SiC) and an ultrafiltration membrane, made by zirconia (ZrO2), in the treatment of wastewater from a washing machine designed to clean industrial tents. The filtration of deionized water, [...] Read more.
This study compares the performance of a microfiltration membrane, made by silicon carbide (SiC) and an ultrafiltration membrane, made by zirconia (ZrO2), in the treatment of wastewater from a washing machine designed to clean industrial tents. The filtration of deionized water, containing model microplastics (i.e., nylon fiber), was performed. This was followed by the filtration of real wastewater from a single washing cycle of industrial tents, made from polyvinyl chloride (PVC) textile. The filtration parameters of the membranes and physical-chemical parameters of the wastewater, including the concentration of microplastics in the shape of tent fibers (PVC), were calculated before and after filtration. The microfiltration membrane manifested a greater decrease in permeability (95%) compared to the ultrafiltration membrane (37%). The resulting water quality in terms of Total Solids, turbidity, and microplastics concentration was better for the ultrafiltration. This is evident from 99.2% versus 98.55% removal efficiency of microplastics from the laundering wastewater, respectively. Full article
(This article belongs to the Special Issue Troubleshooting of Membrane Processes in Real Operation)
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Article
Impact of Chlorinated-Assisted Backwash and Air Backwash on Ultrafiltration Fouling Management for Urban Wastewater Tertiary Treatment
Membranes 2021, 11(10), 733; https://doi.org/10.3390/membranes11100733 - 27 Sep 2021
Viewed by 1400
Abstract
To improve membrane fouling management, the NaClO-assisted backwash has been developed to improve permeability maintenance and reduce the need for intensive chemical cleanings. This study is aimed to focus on the efficiency of NaClO-assisted backwash in real UF pilot scale and with periodic [...] Read more.
To improve membrane fouling management, the NaClO-assisted backwash has been developed to improve permeability maintenance and reduce the need for intensive chemical cleanings. This study is aimed to focus on the efficiency of NaClO-assisted backwash in real UF pilot scale and with periodic classic backwash (CB) and air backwash (AB). The impacts on hydraulic filtration performance, physicochemical properties of membrane material under different addition frequencies of NaClO, and the performance of chlorinated CB and AB will be discussed. In result, 10 mg Cl2 L−1 NaClO addition in backwash water is confirmed to greatly improve the overall filtration performance and backwash cleaning efficiency. One condition stands out from the other due to better control of irreversible fouling, less NaClO consumption in 10 years prediction, sustainable and adaptable filtration performance, and less potential damage on the physicochemical properties of the membrane. Additionally, it can be inferred from this experiment that frequent contact with NaClO induced some degradation on the PES-made UF membrane surface properties. To retain the best state of UF membrane on anti-fouling and qualified production, the optimized condition with more frequent NaClO contact was not suggested for long-term filtration. Full article
(This article belongs to the Special Issue Troubleshooting of Membrane Processes in Real Operation)
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