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Alternative heating techniques in membrane distillation: A review
Desalination ( IF 9.9 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.desal.2020.114713
Farah Ejaz Ahmed , Boor Singh Lalia , Raed Hashaikeh , Nidal Hilal

Abstract Membrane distillation (MD) lags behind other desalination processes such as reverse osmosis due to relatively high energy consumption. Heating in membrane distillation forms a significant component of total energy consumption. This review provides an overview of the various conventional and non-conventional heating methods used in the MD process, focusing on its application for water desalination. To make MD competitive with existing technologies, research should be directed at low-cost energy sources or alternative heating methods. Development of alternative heating methods is based on the direct heating of feed water where the driving force for distillation can be generated inside the membrane module, as is the case for photothermal heating, electrothermal heating or induction heating. Direct heating of the feed near the membrane surface can improve the thermal efficiency and economics of the MD process. Through this literature survey, we have identified some areas to guide future research in alternative heating techniques for membrane distillation.

中文翻译:

膜蒸馏中的替代加热技术:综述

摘要 由于相对较高的能耗,膜蒸馏 (MD) 落后于其他脱盐工艺,如反渗透。膜蒸馏中的加热是总能耗的重要组成部分。本综述概述了 MD 工艺中使用的各种传统和非常规加热方法,重点介绍了其在海水淡化中的应用。为了使 MD 与现有技术竞争,研究应针对低成本能源或替代加热方法。替代加热方法的开发基于给水的直接加热,其中可以在膜组件内部产生蒸馏的驱动力,如光热加热、电热加热或感应加热的情况。在膜表面附近直接加热进料可以提高 MD 工艺的热效率和经济性。通过这项文献调查,我们确定了一些领域,以指导未来膜蒸馏替代加热技术的研究。
更新日期:2020-12-01
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