Membranes for Industrial Wastewater Treatment

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

Deadline for manuscript submissions: closed (29 August 2023) | Viewed by 3195

Special Issue Editors

CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
Interests: membrane separation technology for wastewater treatment; industrial wastewater treatment; zero liquid discharge for high-salinity wastewater; electrodialysis
CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
Interests: membrane technology; drinking water treatment; wastewater treatment; advanced oxidation processes
CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
Interests: water and wastewater treatment technology; membrane method of water treatment; forward osmosis

Special Issue Information

Dear Colleagues,

Industrial wastewater comes from different industries, and its water quality is complex and difficult to treat. Membrane technology has great advantages in industrial wastewater treatment and has been widely used in projects. As industrial wastewater discharge standards become increasingly strict, membrane technology will be more and more important. Different membrane technologies, such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), reverse osmosis (RO), forward osmosis (FO), membrane distillation (MD), electrodialysis (ED), bipolar membrane electrodialysis (BMED), and membrane bioreactor (MBR) have been widely studied in the treatment of industrial wastewater.

This Special Issue of the journal Membranes, “Membranes for Industrial Wastewater Treatment”, aims to cover the state-of-the-art membrane technologies in the field of industrial wastewater treatment. The topics include but are not limited to membrane processes, membrane materials, membrane fouling, membrane application, and other relevant membrane technologies in industrial wastewater treatment.

Dr. Zhihua Yuan
Dr. Li Chen
Dr. Xinfei Dong
Guest Editors

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Keywords

  • industrial wastewater treatment
  • zero liquid discharge
  • membrane processes
  • membrane materials
  • membrane fouling
  • resource recovery

Published Papers (2 papers)

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Research

17 pages, 4043 KiB  
Article
Arginine-Functionalized Thin Film Composite Forward Osmosis Membrane Integrating Antifouling and Antibacterial Effects
by Yichen Chen, Wenmeng Yu and Hu Cao
Membranes 2023, 13(9), 760; https://doi.org/10.3390/membranes13090760 - 28 Aug 2023
Viewed by 774
Abstract
Membrane fouling is an inevitable obstacle of polyamide composite forward osmosis (FO) membranes in oily wastewater treatment. In this study, zwitterionic arginine (Arg) is grafted onto nascent self-made FO polyamide poly(ether sulfone) (PA-PES) membrane, imparting superior hydrophilic, antifouling, and antibacterial properties to the [...] Read more.
Membrane fouling is an inevitable obstacle of polyamide composite forward osmosis (FO) membranes in oily wastewater treatment. In this study, zwitterionic arginine (Arg) is grafted onto nascent self-made FO polyamide poly(ether sulfone) (PA-PES) membrane, imparting superior hydrophilic, antifouling, and antibacterial properties to the membrane. Detailed characterizations revealed that the Arg-modified (Arg-PES) membrane presented obviously surface positively charged and unique morphology. Results showed that our strategy endowed the optimized membrane, the water flux increased by 113.2% compared to the pristine membrane, respectively, meanwhile keeping high NaCl rejection > 93.9% (with DI water as feed solution and 0.5 M NaCl as draw solution, FO mode). The dynamic fouling tests indicated that the Arg-PES membranes exhibited much improved antifouling performance towards oily wastewater treatment. The flux recovery ratios of the membrane were as high as 92.0% for cationic emulsified oil (cetyl pyridinium chloride, CPC), 87.0% for neutral emulsified oil (Tween-80), and 86.0% for anionic emulsified oil (sodium dodecyl sulfate, SDS) after washing, respectively. Meanwhile, the Arg-PES membranes assembled with guanidine cationic groups exhibited an enhanced antibacterial property against E. coli, which exhibited a high antibacterial efficiency of approximately 96%. Consequently, the newly arginine functionalized FO membrane possesses impressive antifouling performance, while simultaneously resisting bacterial invasion, thus rendering it an ideal alternative for oily wastewater treatment in the FO process. Full article
(This article belongs to the Special Issue Membranes for Industrial Wastewater Treatment)
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23 pages, 8310 KiB  
Article
Novel MXene-Modified Polyphenyl Sulfone Membranes for Functional Nanofiltration of Heavy Metals-Containing Wastewater
by Mohammed Azeez Naji, Hamed Salimi-Kenari, Qusay F. Alsalhy, Raed A. Al-Juboori, Ngoc Huynh, Khalid T. Rashid and Issam K. Salih
Membranes 2023, 13(3), 357; https://doi.org/10.3390/membranes13030357 - 20 Mar 2023
Cited by 2 | Viewed by 1676
Abstract
In this work, MXene as a hydrophilic 2D nanosheet has been suggested to tailor the polyphenylsulfone (PPSU) flat sheet membrane characteristics via bulk modification. The amount of MXene varied in the PPSU casting solution from 0–1.5 wt.%, while a series of characterization tools [...] Read more.
In this work, MXene as a hydrophilic 2D nanosheet has been suggested to tailor the polyphenylsulfone (PPSU) flat sheet membrane characteristics via bulk modification. The amount of MXene varied in the PPSU casting solution from 0–1.5 wt.%, while a series of characterization tools have been employed to detect the surface characteristics changes. This included atomic force microscopy (AFM), scanning electron microscopy (SEM), contact angle, pore size and porosity, and Fourier-transform infrared spectroscopy (FTIR). Results disclosed that the MXene content could significantly influence some of the membranes’ surface characteristics while no effect was seen on others. The optimal MXene content was found to be 0.6 wt.%, as revealed by the experimental work. The roughness parameters of the 0.6 wt.% nanocomposite membrane were notably enhanced, while greater hydrophilicity has been imparted compared to the nascent PPSU membrane. This witnessed enhancement in the surface characteristics of the nanocomposite was indeed reflected in their performance. A triple enhancement in the pure water flux was witnessed without compromising the retention of the membranes against the Cu2+, Cd2+ and Pd2+ feed. In parallel, high, and comparable separation rates (>92%) were achieved by all membranes regardless of the MXene content. In addition, promising antifouling features were observed with the nanocomposite membranes, disclosing that these nanocomposite membranes could offer a promising potential to treat heavy metals-containing wastewater for various applications. Full article
(This article belongs to the Special Issue Membranes for Industrial Wastewater Treatment)
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