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首页> 外文期刊>Environmental Science & Technology >A Critical Review of Membrane Wettability in Membrane Distillation from the Perspective of Interfacial Interactions
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A Critical Review of Membrane Wettability in Membrane Distillation from the Perspective of Interfacial Interactions

机译：从界面相互作用看膜蒸馏中膜润湿性的关键综述

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摘要

Hydrophobic membranes used in membrane distillation (MD) systems are often subject to wetting during long-term operation. Thus, it is of great importance to fully understand factors that influence the wettability of hydrophobic membranes and their impact on the overall separation efficiency that can be achieved in MD systems. This Critical Review summarizes both fundamental and applied aspects of membrane wetting with particular emphasis on interfacial interaction between the membrane and solutes in the feed solution. First, the theoretical background of surface wetting, including the relationship between wettability and interfacial interaction, definition and measurement of contact angle, surface tension, surface free energy, adhesion force, and liquid entry pressure, is described. Second, the nature of wettability, membrane wetting mechanisms, influence of membrane properties, feed characteristics and operating conditions on membrane wetting, and evolution of membrane wetting are reviewed in the context of an MD process. Third, specific membrane features that increase resistance to wetting (e.g., superhydrophobic, omniphobic, and Janus membranes) are discussed briefly followed by the comparison of various cleaning approaches to restore membrane hydrophobicity. Finally, challenges with the prevention of membrane wetting are summarized, and future work is proposed to improve the use of MD technology in a variety of applications.
机译：用于膜蒸馏（MD）系统的疏水膜通常在长期操作期间润湿。因此，充分了解影响疏水性膜润湿性的因素及其对MD系统中可以实现的整体分离效率的影响的因素非常重要。这一批判性综述总结了膜润湿的基本和应用方面，特别强调了膜与饲料溶液中的晶体相互作用。首先，描述了表面润湿的理论背景，包括润湿性和界面相互作用的关系，接触角，表面张力，表面自由能，粘附力和液体进入压力之间的关系。二，润湿性的性质，膜润湿机制，膜性能的影响，膜润湿上的饲料特性和操作条件，以及在MD工艺的背景下综述膜润湿的演化。第三，简要地讨论了增加对润湿性抗润湿性（例如，超疏水，乌奈希虫和Janus膜）的特异性膜特征，然后进行各种清洁方法来恢复膜疏水性的各种清洁方法。最后，总结了预防膜润湿的挑战，并提出了未来的工作来改善MD技术在各种应用中的使用。

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  • 来源
    《Environmental Science & Technology》 |2021年第3期|1395-1418|共24页
  • 作者

    Haiqing Chang; Baicang Liu; Zhewei Zhang; Ritesh Pawar; Zhongsen Yan; John C. Crittenden; Radisav D. Vidic;

  • 作者单位

    Key Laboratory of Deep Earth Science and Engineering (Ministry of Education) College of Architecture and Environment Sichuan University Chengdu 610207 China Department of Civil and Environmental Engineering University of Pittsburgh Pittsburgh Pennsylvania 15261 United States;

    Key Laboratory of Deep Earth Science and Engineering (Ministry of Education) College of Architecture and Environment Sichuan University Chengdu 610207 China;

    Department of Civil and Environmental Engineering University of Pittsburgh Pittsburgh Pennsylvania 15261 United States;

    Department of Chemical and Petroleum Engineering University of Pittsburgh Pittsburgh Pennsylvania 15261 United States;

    College of Civil Engineering Fuzhou University Fujian 350116 China;

    Brook Byers Institute for Sustainable Systems School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta Georgia 30332 United States;

    Department of Civil and Environmental Engineering and Department of Chemical and Petroleum Engineering University of Pittsburgh Pittsburgh Pennsylvania 15261 United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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