Sustainable Membrane Processes of Water Recycling and Purification

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

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 8153

Special Issue Editors


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Guest Editor
Department of Environmental and Resource Engineering, Technical University of Denmark (DTU), Copenhagen, Denmark
Interests: wastewater treatment; water reuse; microplastics; contaminants of emerging concern; advanced oxidation processes; ceramic membranes; catalysis; photochemistry; photocatalysis; membrane fabrication; photocatalytic membranes; process modelling; hydrometallurgy; polymeric membranes; polymer ageing

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Guest Editor
Department of Chemistry, University of Torino, Via P. Giuria 7, 10125 Torino, Italy
Interests: heterogeneous catalysts; materials characterization; surface science; materials for environmental preservation
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Special Issue Information

Dear Colleagues,

As economic development and population growth continue to increase, the pressure on the environment, climate change and global warming bring new challenges for humanity, including those associated with providing clean water to an increasing population as water scarcity threatens the health of millions and maintaining industrial production without polluting or exhausting water sources. These factors call for the promotion of greener production processes, water recycling, and effective wastewater treatments. Membrane processes are a promising technology in water purification and wastewater treatment, as they are more effective, cost-efficient, and energy-saving than traditional processes. Although the industrial use of membranes has been increasing steeply in the last decade, there is still a need to carry out pilot studies in many water-intensive industries such as mineral, food and beverage, dairy, and textiles. At the same time, the development of new functional membranes with enhanced selectivity, water flux, and lifetime is required to expand the use of membrane filtration. Moreover, the combination of membrane filtration processes (e.g., nanofiltration, membrane distillation) with catalytic processes (e.g., Fenton, solar disinfection, photocatalysis, electrochemical oxidation) has demonstrated efficiency in fouling mitigation and in the removal of contaminants of emerging concern (CECs), microplastics, viruses, and bacteria. Altogether, further development of membrane technology and its application in water recycling and wastewater treatment can help in achieving the United Nations (UN) Sustainable Development Goals (SDGs).

 We are pleased to invite you to contribute to this Special Issue on “Membranes Processes of Water Recycling and Purification”.

This Special Issue aims to bring together the most recent advances in the application of membrane filtration processes in water reuse and wastewater treatment, and in the development of new membranes with tuned porosity, functionalized surface, optimized permeability, or extended lifetime. 

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • New membrane processes for water reuse;
  • New filtration processes that reduce industrial water consumption;
  • New membranes and their application in water and wastewater purification;
  • UF, NF, and RO process intensification;
  • Applications of membrane distillation (MD) in water/wastewater;
  • Combination of membrane filtration with advanced oxidation processes (AOPs);
  • Catalytic/photocatalytic membranes applications;
  • Abatement of contaminants of emerging concern using membrane processes;
  • Advances in the use of membranes in water-intensive industries (e.g., textile, food and beverage, mineral and hydrometallurgical);
  • Oil/water separation facilitated by membranes;
  • Mitigation of membrane fouling in wastewater filtration.

We look forward to receiving your contributions.

Dr. Fabricio Eduardo Bortot Coelho
Prof. Dr. Giuliana Magnacca
Guest Editors

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

  • water reuse
  • tertiary treatments
  • wastewater treatment
  • green processes
  • sustainable development
  • membrane processes
  • wastewater filtration
  • water disinfection
  • fouling
  • water recycling
  • water treatment
  • micropollutants
  • Contaminants of Emerging Concern (CECs)
  • ceramic membranes
  • polymeric membranes
  • nanofiltration
  • ultrafiltration
  • membrane technology
  • wastewater remediation
  • reverse osmosis
  • membrane distillation
  • microplastics

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Published Papers (2 papers)

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Research

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24 pages, 5099 KiB  
Article
Date Palm Tree Leaf-Derived Cellulose Nanocrystal Incorporated Thin-Film Composite forward Osmosis Membranes for Produced Water Treatment
by Asif Saud, Haleema Saleem, Aquib Wakeel Khan, Nazmin Munira, Maryam Khan and Syed Javaid Zaidi
Membranes 2023, 13(5), 513; https://doi.org/10.3390/membranes13050513 - 13 May 2023
Cited by 8 | Viewed by 2118
Abstract
Worldwide water shortage and significant issues related to treatment of wastewater streams, mainly the water obtained during the recovery of oil and gas operations called produced water (PW), has enabled forward osmosis (FO) to progress and become advanced enough to effectively treat as [...] Read more.
Worldwide water shortage and significant issues related to treatment of wastewater streams, mainly the water obtained during the recovery of oil and gas operations called produced water (PW), has enabled forward osmosis (FO) to progress and become advanced enough to effectively treat as well as retrieve water in order to be productively reused. Because of their exceptional permeability qualities, thin-film composite (TFC) membranes have gained increasing interest for use in FO separation processes. This research focused on developing a high water flux and less oil flux TFC membrane by incorporating sustainably developed cellulose nanocrystal (CNC) onto the polyamide (PA) layer of the TFC membrane. CNCs are prepared from date palm leaves and different characterization studies verified the definite formations of CNCs and the effective integration of CNCs in the PA layer. From the FO experiments, it was confirmed that that the membrane with 0.05 wt% of CNCs in the TFC membrane (TFN-5) showed better FO performance in PW treatment. Pristine TFC and TFN-5 membrane exhibited 96.2% and 99.0% of salt rejection and 90.5% and 97.45% of oil rejection. Further, TFC and TFN-5 demonstrated 0.46 and 1.61 LMHB pure water permeability and 0.41 and 1.42 LHM salt permeability, respectively. Thus, the developed membrane can help in overcoming the current challenges associated with TFC FO membranes for PW treatment processes. Full article
(This article belongs to the Special Issue Sustainable Membrane Processes of Water Recycling and Purification)
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Review

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27 pages, 5314 KiB  
Review
Nanofiltration Membranes for the Removal of Heavy Metals from Aqueous Solutions: Preparations and Applications
by Alaa El Din Mahmoud and Esraa Mostafa
Membranes 2023, 13(9), 789; https://doi.org/10.3390/membranes13090789 - 12 Sep 2023
Cited by 21 | Viewed by 5331
Abstract
Water shortages are one of the problems caused by global industrialization, with most wastewater discharged without proper treatment, leading to contamination and limited clean water supply. Therefore, it is important to identify alternative water sources because many concerns are directed toward sustainable water [...] Read more.
Water shortages are one of the problems caused by global industrialization, with most wastewater discharged without proper treatment, leading to contamination and limited clean water supply. Therefore, it is important to identify alternative water sources because many concerns are directed toward sustainable water treatment processes. Nanofiltration membrane technology is a membrane integrated with nanoscale particle size and is a superior technique for heavy metal removal in the treatment of polluted water. The fabrication of nanofiltration membranes involves phase inversion and interfacial polymerization. This review provides a comprehensive outline of how nanoparticles can effectively enhance the fabrication, separation potential, and efficiency of NF membranes. Nanoparticles take the form of nanofillers, nanoembedded membranes, and nanocomposites to give multiple approaches to the enhancement of the NF membrane’s performance. This could significantly improve selectivity, fouling resistance, water flux, porosity, roughness, and rejection. Nanofillers can form nanoembedded membranes and thin films through various processes such as in situ polymerization, layer-by-layer assembly, blending, coating, and embedding. We discussed the operational conditions, such as pH, temperature, concentration of the feed solution, and pressure. The mitigation strategies for fouling resistance are also highlighted. Recent developments in commercial nanofiltration membranes have also been highlighted. Full article
(This article belongs to the Special Issue Sustainable Membrane Processes of Water Recycling and Purification)
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