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      Recent advances in electrocatalytic membrane for the removal of micropollutants from water and wastewater

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          Summary

          The increasing occurrence of micropollutants in water and wastewater threatens human health and ecological security. Electrocatalytic membrane (EM), a new hybrid water treatment platform that integrates membrane separation with electrochemical technologies, has attracted extensive attention in the removal of micropollutants from water and wastewater in the past decade. Here, we systematically review the recent advances of EM for micropollutant removal from water and wastewater. The mechanisms of the EM for micropollutant removal are first introduced. Afterwards, the related membrane materials and operating conditions of the EM are summarized and analyzed. Lastly, the challenges and future prospects of the EM in research and applications are also discussed, aiming at a more efficient removal of micropollutants from water and wastewater.

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          Abstract

          Electrochemistry; Environmental science; Membranes

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          Maximizing the right stuff: The trade-off between membrane permeability and selectivity

          Ho Bum Park, Jovan Kamcev, Lloyd Robeson … (2017)
          Article 0 comments Cited 535 times – based on 0 reviews     Review now
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            Rapid removal of organic micropollutants from water by a porous β-cyclodextrin polymer.

            Alaaeddin Alsbaiee, Brian J Smith, Leilei Xiao … (2016)
            The global occurrence in water resources of organic micropollutants, such as pesticides and pharmaceuticals, has raised concerns about potential negative effects on aquatic ecosystems and human health. Activated carbons are the most widespread adsorbent materials used to remove organic pollutants from water but they have several deficiencies, including slow pollutant uptake (of the order of hours) and poor removal of many relatively hydrophilic micropollutants. Furthermore, regenerating spent activated carbon is energy intensive (requiring heating to 500-900 degrees Celsius) and does not fully restore performance. Insoluble polymers of β-cyclodextrin, an inexpensive, sustainably produced macrocycle of glucose, are likewise of interest for removing micropollutants from water by means of adsorption. β-cyclodextrin is known to encapsulate pollutants to form well-defined host-guest complexes, but until now cross-linked β-cyclodextrin polymers have had low surface areas and poor removal performance compared to conventional activated carbons. Here we crosslink β-cyclodextrin with rigid aromatic groups, providing a high-surface-area, mesoporous polymer of β-cyclodextrin. It rapidly sequesters a variety of organic micropollutants with adsorption rate constants 15 to 200 times greater than those of activated carbons and non-porous β-cyclodextrin adsorbent materials. In addition, the polymer can be regenerated several times using a mild washing procedure with no loss in performance. Finally, the polymer outperformed a leading activated carbon for the rapid removal of a complex mixture of organic micropollutants at environmentally relevant concentrations. These findings demonstrate the promise of porous cyclodextrin-based polymers for rapid, flow-through water treatment.
            Article 0 comments Cited 386 times – based on 0 reviews     Review now
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              Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods: A general review

              Carlos Martínez-Huitle, Enric Brillas (2009)
              Article 0 comments Cited 325 times – based on 0 reviews     Review now
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                Author and article information

                Contributors
                Zhiwei Wang
                Journal
                Journal ID (nlm-ta): iScience
                Journal ID (iso-abbrev): iScience
                Title: iScience
                Publisher: Elsevier
                ISSN (Electronic): 2589-0042
                Publication date PMC-release: 02 May 2022
                Publication date Collection: 20 May 2022
                Publication date (Electronic): 02 May 2022
                Volume: 25
                Issue: 5
                Electronic Location Identifier: 104342
                Affiliations
                [1 ]State Key Laboratory of Pollution Control and Resource Reuse, Advanced Membrane Technology Center of Tongji University, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
                [2 ]Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, PR China
                [3 ]College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China
                Author notes
                [∗ ]Corresponding author zwwang@ 123456tongji.edu.cn
                Article
                Publisher Item ID: S2589-0042(22)00613-7 Publisher ID: 104342
                DOI: 10.1016/j.isci.2022.104342
                PMC ID: 9117875
                PubMed ID: 35602955
                SO-VID: 45946fa5-ff2d-4080-9f8e-1c2d79b189c3
                Copyright © © 2022 The Author(s)
                License:

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                Categories
                Subject: Review

                Keywords: electrochemistry,environmental science,membranes
                Data availability:
                Keywords: electrochemistry, environmental science, membranes

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