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Sustainable Membrane Technologies for Wastewater Treatment

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

Deadline for manuscript submissions: 20 August 2024 | Viewed by 4868

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Special Issue Editors

Prof. Dr. Liang Duan

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Guest Editor

Chinese Research Academy of Environmental Sciences, Chaoyang District, Beijing 100012, China
Interests: membrane bioreactors; membrane fouling; forward osmosis; reverse osmosis

Dr. Guanglei Qiu

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Guest Editor

College of Environment and Energy, South China University of Technology, Guangzhou 510006, China
Interests: membrane bioreactors; membrane fouling; forward osmosis
Special Issues, Collections and Topics in MDPI journals

Dr. Zhichao Zhang

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Guest Editor

Chinese Research Academy of Environmental Sciences, Chaoyang District, Beijing 100012, China
Interests: separation techniques; membrane separation; membrane modification

Special Issue Information

Dear Colleagues,

The rapid growth of industrialization led to a series of problems related to water deterioration and shortage. Water shortage has been become one of the increasingly prominent concerns worldwide. It is of great significance to develop efficient wastewater treatment technologies and recovery applications. As compared with other wastewater treatment processes, membrane technology has been used as an innovative and promising option for wastewater treatment and reuse. However, membrane fouling and its consequences in terms of plant maintenance and operating costs limit the widespread application of membrane technology.

This Special Issue of Membranes on “Sustainable Membrane Technology for Wastewater Treatment” is dedicated to providing a forum that provides comprehensive coverage on the state-of-the-art and study of advanced applications in membrane technology. Both original research articles and reviews are welcomed. All invited submissions for the Special Issue will go through the normal peer-review process.

We look forward to receiving your contributions.

Prof. Dr. Liang Duan
Dr. Guanglei Qiu
Dr. Zhichao 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

separation techniques
membrane separation
membrane fouling
forward osmosis
membrane modification

Published Papers (3 papers)

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Research

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16 pages, 4112 KiB

Open AccessArticle

Mo-BiVO₄ Photocatalytically Modified Ceramic Ultrafiltration Membranes for Enhanced Water Treatment Efficiency

by George V. Theodorakopoulos, Martha Pylarinou, Elias Sakellis, Fotios K. Katsaros, Vlassis Likodimos and George Em. Romanos

Membranes 2024, 14(5), 112; https://doi.org/10.3390/membranes14050112 - 14 May 2024

Viewed by 92

Abstract

This study highlights the effectiveness of photocatalytically modified ceramic ultrafiltration (UF) membranes in alleviating two major drawbacks of membrane filtration technologies. These are the generation of a highly concentrated retentate effluent as a waste stream and the gradual degradation of the water flux through the membrane due to the accumulation of organic pollutants on its surface. The development of two types of novel tubular membranes, featuring photocatalytic Mo-BiVO₄ inverse opal coatings, demonstrated a negligible impact on water permeance, ensuring consistent filtration and photocatalytic efficiency and suggesting the potential for maintaining membrane integrity and avoiding the formation of highly concentrated retentate effluents. Morphological analysis revealed well-defined coatings with ordered domains and interconnected macropores, confirming successful synthesis of Mo-BiVO₄. Raman spectroscopy and optical studies further elucidated the composition and light absorption properties of the coatings, particularly within the visible region, which is vital for photocatalysis driven by vis-light. Evaluation of the tetracycline removal efficiency presented efficient adsorption onto membrane surfaces with enhanced photocatalytic activity observed under both UV and vis-light. Additionally, vis-light irradiation facilitated significant degradation, showcasing the versatility of the membranes. Total Organic Carbon (TOC) analysis corroborated complete solute elimination or photocatalytic degradation without the production of intermediates, highlighting the potential for complete pollutant removal. Overall, these findings emphasize the promising applications of Mo-BiVO₄ photocatalytic membranes in sustainable water treatment and wastewater remediation processes, laying the groundwork for further optimization and scalability in practical water treatment systems. Full article

(This article belongs to the Special Issue Sustainable Membrane Technologies for Wastewater Treatment)

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11 pages, 4789 KiB

Open AccessArticle

High-Density Microarray Analysis of Microbial Community Structures in Membrane Bioreactor at Short Sludge Retention Time

by Shilong Li, Liang Duan, Yonghui Song and Slawomir W. Hermanowicz

Membranes 2023, 13(2), 146; https://doi.org/10.3390/membranes13020146 - 23 Jan 2023

Cited by 4 | Viewed by 1380

Abstract

Membrane bioreactors (MBR) have become prevalent in wastewater treatment because of their high effluent quality and low sludge generation. Sludge retention time (SRT) is an important parameter in the operation of MBR, and it has a direct effect on the microbial community. In this study, microarrays were used to analyze the microbial communities of three different MBRs at short SRTs. The results showed that MBR at SRT 5 days (CS5) has the highest operational taxonomic units (OTUs) richness, but the lowest diversity and uniformity compared to SRT 3 days at continuous CS3 and the sequencing batch (SS3). Proteobacteria were the dominant phylum of three reactors. Bacteroidetes were the second dominant phylum in MBRs at the continuous model, instead of Actinobacteria at the sequencing model. At the class level, the dominant group of Proteobacteria exhibited a remarkable difference between the three MBRs. γ-Proteobacteria was the dominant group in CS5 and CS3, while α-Proteobacteria was the main group in SS3. The samples from the three MBRs had similar compositions of α-, β- and δ-Proteobacteria. However, γ-Proteobacteria showed different community compositions at the order level between the three MBRs. Enterobacteriales were the dominant group in CS5 and CS3, while Pseudomonadales were the dominant group in SS3. The bacterial community concentration of SRT 5 days was generally higher than that of the other two MBRs. The community composition of CS5 was significantly different from that of CS3 and SS3, and the phylogenetic relationships of the three MBRs were relatively different. Full article

(This article belongs to the Special Issue Sustainable Membrane Technologies for Wastewater Treatment)

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Review

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14 pages, 1804 KiB

Open AccessReview

The Application of Membrane Separation Technology in the Pharmaceutical Industry

by Ruirui Ma, Juan Li, Ping Zeng, Liang Duan, Jimin Dong, Yunxia Ma and Lingkong Yang

Membranes 2024, 14(1), 24; https://doi.org/10.3390/membranes14010024 - 17 Jan 2024

Cited by 1 | Viewed by 2566

Abstract

With the advancement in membrane technology, membrane separation technology has been found increasingly widespread applications in the pharmaceutical industry. It is utilized in drug separation and purification, wastewater treatment, and the recycling of wastewater resources. This study summarizes the application history of membrane technology in the pharmaceutical industry, presents practical engineering examples of its applications, analyzes the various types of membrane technologies employed in the pharmaceutical sector, and finally, highlights the application cases of renowned international and Chinese membrane technology companies in the pharmaceutical field. Full article

(This article belongs to the Special Issue Sustainable Membrane Technologies for Wastewater Treatment)

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