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Membranes
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Membranes for Water Filtration and Treatment
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Membranes for Water Filtration and Treatment

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

Deadline for manuscript submissions: closed (15 December 2019) | Viewed by 14689

Special Issue Editor

Dr. Avinash Baji

E-Mail Website
Guest Editor
Department of Engineering, School of Engineering and Mathematical Sciences, La Trobe University, Bundoora, VIC 3086, Australia
Interests: bio-inspired materials; electrospinning; fibers; membranes nanomaterials; nanocomposites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Factors such as climate change and rapid urbanization are putting a huge amount of strain on the availability of fresh water in most of the cities around the world. Novel and smart membranes developed using the knowledge of materials science, nanomaterials, nanotechnology, fiber science, and process engineering have been shown to hold tremendous potential in addressing the problems related to water scarcity and the availability of fresh water. As a result, research related to membranes has intensified as the membranes are increasingly explored for water filtration and separation, water treatment, desalination of brackish water, and water reclamation.

This Special Issue is devoted to covering a broad range of research activities, findings and recent progress in the development of membranes and their application for water treatment, filtration, and desalination. Authors are invited to submit their original research work or critical review addressing development and applications of membranes. Of particular interests are the articles that use membranes for separating specific contaminants from water, using membranes for desalination, biomimetic membranes, self-cleaning membranes that resist fouling, and energy efficient membrane systems.

Dr. Avinash Baji
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

  • desalination
  • water treatment
  • wastewater treatment
  • water filtration
  • membranes
  • anti-fouling

Published Papers (2 papers)

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Research

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12 pages, 2380 KiB  
Article
Production of High Flux Poly(Ether Sulfone) Membrane Using Silica Additive Extracted from Natural Resource
by Sri Mulyati, Syawaliah Muchtar, Mukramah Yusuf, Nasrul Arahman, Sofyana Sofyana, Cut Meurah Rosnelly, Umi Fathanah, Ryosuke Takagi, Hideto Matsuyama, Norazanita Shamsuddin and Muhammad Roil Bilad
Membranes 2020, 10(1), 17; https://doi.org/10.3390/membranes10010017 - 19 Jan 2020
Cited by 17 | Viewed by 3479
Abstract
This paper reports the application of silica derived from natural biomasses of rice husk and bagasse ashes as membrane modifying agents. The modification was conducted on poly(ether sulfone) (PES) membrane by blending the silica into the dope solution. The modification was aimed to [...] Read more.
This paper reports the application of silica derived from natural biomasses of rice husk and bagasse ashes as membrane modifying agents. The modification was conducted on poly(ether sulfone) (PES) membrane by blending the silica into the dope solution. The modification was aimed to improve the structure and hydraulic performance of the resulting PES membrane. The effects of silica addition to the membrane system were evaluated through the analysis of change in chemical structure using ATR-FTIR, surface morphological change using AFM, and surface hydrophilicity using water contact angle measurement. SEM and AFM images show the silica loading significantly affects the membranes morphologies. Silica loading also promotes hydrophilic property as shown by the decrease in water contact angles from 82° to 52–60° due to the presence of polar groups in some residual silica in the membrane matrix. Silica blending also leads to the formation of membranes with higher permeability of up to three folds but lower humic acid rejection (78–62%). The findings indicate the role of silica to enhance the membrane pore size. The ability of membrane to reject humic acid (of 0.8 nm minimum diameter) indicating that the resulting membranes were in between tight ultrafiltration and nanofiltration type. Nonetheless, applying too-high silica concentration decreased the humic acid rejection most likely due to over enlargement of the membrane pore size. Full article
(This article belongs to the Special Issue Membranes for Water Filtration and Treatment)
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Review

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31 pages, 5792 KiB  
Review
Materials and Applications for Low-Cost Ceramic Membranes
by Amanmyrat Abdullayev, Maged F. Bekheet, Dorian A.H. Hanaor and Aleksander Gurlo
Membranes 2019, 9(9), 105; https://doi.org/10.3390/membranes9090105 - 21 Aug 2019
Cited by 112 | Viewed by 10741
Abstract
In water treatment applications, the use of ceramic membranes is associated with numerous advantages relative to polymer-based filtration systems. High-temperature stability, fouling resistance, and low maintenance requirements contribute to lower lifecycle costs in such systems. However, the high production costs of most commercially [...] Read more.
In water treatment applications, the use of ceramic membranes is associated with numerous advantages relative to polymer-based filtration systems. High-temperature stability, fouling resistance, and low maintenance requirements contribute to lower lifecycle costs in such systems. However, the high production costs of most commercially available ceramic membranes, stemming from raw materials and processing, are uneconomical for such systems in most water treatment applications. For this reason, there is a growing demand for new ceramic membranes based on low-cost raw materials and processes. The use of unrefined mineral feedstocks, clays, cement, sands, and ash as the basis for the fabrication of ceramic membranes offers a promising pathway towards the obtainment of effective filtration systems that can be economically implemented in large volumes. The design of effective ceramic filtration membranes based on low-cost raw materials and energy-efficient processes requires a balance of pore structure, mass flow, and robustness, all of which are highly dependent on the composition of materials used, the inclusion of various pore-forming and binding additives, and the thermal treatments to which membranes are subjected. In this review, we present recent developments in materials and processes for the fabrication of low-cost membranes from unrefined raw materials, including clays, zeolites, apatite, waste products, including fly ash and rice husk ash, and cement. We examine multiple aspects of materials design and address the challenges relating to their further development. Full article
(This article belongs to the Special Issue Membranes for Water Filtration and Treatment)
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