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Membranes
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Advanced Membrane Technologies for Wastewater Treatment and Recycling 2.0
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Advanced Membrane Technologies for Wastewater Treatment and Recycling 2.0

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

Deadline for manuscript submissions: closed (10 September 2023) | Viewed by 4008

Special Issue Editors

Prof. Dr. Hongjun Lin

grade E-Mail Website
Guest Editor
College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
Interests: membrane fouling; membrane fabrication; ultrafiltration; nanofiltration; forward osmosis; membrane bioreactor; electro-membranes; membrane distillation; hybrid membranes; reverse osmosis
Special Issues, Collections and Topics in MDPI journals
Dr. Meijia Zhang

E-Mail Website
Guest Editor
College of Geography and Environmental Sciences, Zhejiang Normal University, 688 Yingbin Avenue, Jinhua 321004, China
Interests: membrane fouling; membrane bioreactor; membrane characterization; ultrafiltration; forward osmosis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the rapid growth in the human population and the global economy, the water shortage problem has become increasingly aggravated. In the face of the ever-growing severe problem of water shortage, wastewater reuse, recycling, and resource recovery are considered part of the solution to the problem. Compared with other wastewater treatment processes, membrane technology has distinct advantages, such as simple operation, easy scale-up, and no use of chemicals, and has thus been widely used in wastewater treatment and recycling. Although the implementation of membrane technologies for wastewater treatment and recycling has significantly increased, the application of membranes in wastewater treatment encounters various unsolved problems, such as membrane fouling. We are pleased to invite you to submit your latest results (research articles and reviews) in this Special Issue on “Advanced Membrane Technologies for Wastewater Treatment and Recycling” of the journal Membranes. This Special Issue seeks contributions to assess the state of the art and future developments in the field of membrane technologies in wastewater treatment and recycling. Topics include (but are not limited to) the following: membrane bioreactor applications, membrane fouling mechanisms, membrane fouling control, membrane fabrication and modification, fouling characterization, and various wastewater treatments. We look forward to receiving your contributions.

Prof. Dr. Hongjun Lin
Dr. Meijia Zhang
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 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 technology
  • wastewater treatment
  • membrane bioreactor
  • membrane fouling
  • membrane modification
  • fouling mechanism

Published Papers (2 papers)

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Research

12 pages, 4469 KiB  
Article
FAPbBr3 Perovskite Nanocrystals Embedded in Poly(L–lactic acid) Nanofibrous Membranes for Enhanced Air and Water Stability
by Madeeha Tabassum, Qasim Zia, Jiashen Li, Muhammad Tauseef Khawar, Sameen Aslam and Lei Su
Membranes 2023, 13(3), 279; https://doi.org/10.3390/membranes13030279 - 26 Feb 2023
Cited by 1 | Viewed by 1825
Abstract
Formamidinium lead bromide (FAPbBr3) nanocrystals have emerged as a powerful platform for optoelectronic applications due to their pure green photoluminescence (PL). However, their low colloidal stability under storage and operation reduces the potential use of FAPbBr3 perovskite nanocrystals (PeNCs) in [...] Read more.
Formamidinium lead bromide (FAPbBr3) nanocrystals have emerged as a powerful platform for optoelectronic applications due to their pure green photoluminescence (PL). However, their low colloidal stability under storage and operation reduces the potential use of FAPbBr3 perovskite nanocrystals (PeNCs) in various applications. In this study, we prepared the poly(L–lactic acid) (PLLA) nanofibrous membrane embedded with FAPbBr3 perovskite nanocrystals by electrospinning the perovskite and PLLA precursor solution. This is a simple and low-cost technique for the direct confinement of nano-sized functional materials in the continuous polymer nanofibres. PLLA as a polymer matrix provided a high surface framework to fully encapsulate the perovskite NCs. In addition, we found that FAPbBr3 PeNCs crystallize spontaneously inside the PLLA nanofibre. The resultant PLLA-FAPbBr3 nanofibrous membranes were stable and remained in the water for about 45 days without any evident decomposition. The results of this research support the idea of new possibilities for the production of air-stable FAPbBr3 PeNCs by forming a composite with PLLA polymer. The authors believe this study is a new milestone in the development of highly stable metal halide perovskite-based nanofibres, which allow for potential use in lasers, waveguides, and flexible energy harvesters. Full article
(This article belongs to the Special Issue Advanced Membrane Technologies for Wastewater Treatment and Recycling 2.0)
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18 pages, 2407 KiB  
Article
Combined Electrodialysis and Electrocoagulation as Treatment for Industrial Wastewater Containing Arsenic and Copper
by Henrik K. Hansen, Claudia Gutiérrez, Jorge Leiva Gonzalez, Andrea Lazo, Marcela E. Hansen, Pamela Lazo, Lisbeth M. Ottosen and Rodrigo Ortiz
Membranes 2023, 13(3), 264; https://doi.org/10.3390/membranes13030264 - 23 Feb 2023
Cited by 4 | Viewed by 1787
Abstract
In copper smelting processes, acidic effluents are generated that contain inorganic contaminants such as arsenic and copper. Nowadays, the treatment of wastewater is done by physicochemical methods without copper recovery. Electrodialysis is an alternative process that can recover copper. Moreover, when electrocoagulation is [...] Read more.
In copper smelting processes, acidic effluents are generated that contain inorganic contaminants such as arsenic and copper. Nowadays, the treatment of wastewater is done by physicochemical methods without copper recovery. Electrodialysis is an alternative process that can recover copper. Moreover, when electrocoagulation is applied to remove arsenic from wastewater, a more stable final sludge of less volume is obtained. The present research studies the application of a combined electrodialysis and electrocoagulation process to (1) recover Cu and (2) precipitate and remove arsenic simultaneously in the same batch reactor, using synthetic wastewater that simulates wastewater from a copper smelter. Copper and arsenic could be removed and separated by the electrodialysis part, and the electrocoagulation of arsenic was verified. With electrodialysis, the arsenic and copper removals were 67% and 100%, respectively, while 82% of the arsenic arriving at the electrocoagulation part of the cell could be precipitated and removed by this process. Initial concentrations were around 815 mg L−1 Cu and 7700 mg L−1 As. The optimal current was found to be 1.36 A due to the shorter treatment times necessary to get removal percentages, recovery percentages and energy/removed copper mass ratios in the same ranges as the values achieved with a current of 1.02 A. In summary, the combined process is a promising tool for simultaneous copper recovery and arsenic removal. Full article
(This article belongs to the Special Issue Advanced Membrane Technologies for Wastewater Treatment and Recycling 2.0)
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