Membrane Separation Technology for Water Purification and Power Generation Using Water

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 1090

Special Issue Editors


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Guest Editor
School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China
Interests: membrane fouling; membrane cleaning; membrane aging; membrane fabrication; molecular interactions; interfacial free energies; micro/nano bubbles; atomic force microscopy (AFM) force spectroscopy; XDLVO theory; energy generation based on membranes

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Guest Editor
College of Civil Engineering and Architecture, Nanyang Normal University, Nanyang 473061, China
Interests: membrane processes; desalination; water treatment; fouling and control strategies for process units; advanced membrane science and technology; membrane synthesis; membrane materials; membrane application

Special Issue Information

Dear Colleagues,

For water purification and power generation using water, membrane separation technologies have gained widespread popularity, due to the advantages of nearly zero emissions, low occupied area and high automation. Microfiltration and ultrafiltration membranes can efficiently separate colloid particles and macromolecular substances from water. Nanofiltration and reverse osmosis processes have high efficiency in desalination and removing organics with low molecular weight. For desalination, electrodialysis, forward osmosis and membrane distillation are also attractive processes. In particular, membrane distillation has been regarded as one of the most promising techniques for nearly zero liquid discharge and resource recycling. To capture salinity-gradient energy, pressure-retarded osmosis and reverse electrodialysis are the most promising methods. For energy generation from organic matter in waste waters and biomass, microbial fuel-cell technologies have drawn more attention. The keypoints are the performance and stability of the aforementioned membranes, which are closely related to membrane fouling, parameter optimization, membrane cleaning and membrane aging, as well as the fabrication of novel membrane materials. This Special Issue is devoted to the sustainable application of membranes to satisfy the demand of high-quality water and to generate green energy using water.

Dr. Guicai Liu
Dr. Dongsheng Zhao
Guest Editors

Manuscript Submission Information

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Keywords

  • membrane separation technology
  • novel membrane fabrication
  • membrane application
  • water purification
  • green energy generation
  • desalination
  • high-quality water

Published Papers (1 paper)

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Research

14 pages, 3128 KiB  
Article
Copper Nanoparticles Coupled with Fine-Powdered Active Carbon-Modified Ceramic Membranes for Improved Filtration Performance in a Membrane Bioreactor
by Qi Qiu, Mingchang Gao, Changtao Shao, Shaofang Sun, Yusen Liu and Huawei Zhang
Water 2023, 15(23), 4141; https://doi.org/10.3390/w15234141 - 29 Nov 2023
Cited by 1 | Viewed by 787
Abstract
Membrane fouling is a key factor limiting the application of a membrane bioreactor (MBR), and membrane-surface modification holds the potential to control membrane fouling and solves this problem. In the research, novel nanocomposite membranes were designed and fabricated using antimicrobial copper nanoparticles (CuNPs) [...] Read more.
Membrane fouling is a key factor limiting the application of a membrane bioreactor (MBR), and membrane-surface modification holds the potential to control membrane fouling and solves this problem. In the research, novel nanocomposite membranes were designed and fabricated using antimicrobial copper nanoparticles (CuNPs) coupled with powdered active carbon (PAC) to mitigate membrane fouling. The successful coating was confirmed by SEM, XRD, and FTIR analysis. Compared with a pristine membrane, the functionalization of CuNPs and PAC improved the hydrophilicity of the modified membrane but led to a lower permeate flux. The result of antimicrobial adhesion experiments showed that the modified M-CuOC displayed high antibacterial activity with the bacteria count decreased by 72%. In MBR operation, the modified M-CuOC leads to the removal efficiency of chemical oxygen demand (COD) increasing to 93%, with better filtration performance under a lower TMP rise. The fouling-resistance analysis demonstrated that, although the intrinsic membrane resistance of modified M-CuOC slightly increased, the reversible and irreversible fouling resistances obviously decreased by 45% and 90%. Moreover, the membrane flux recovery efficiency of the modified M-CuOC also increased by 35%. Overall, these results indicated that, in addition to an improvement in antifouling performance, the functionalization of CuNPs and PAC also enhanced the membrane flux recovery efficiency, revealing a good antifouling potential in a practical application. Full article
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