气候变化领域集成服务门户(CCPortal): Membrane distillation at the water-energy nexus: Limits, opportunities, and challenges

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DOI	10.1039/c8ee00291f
	Membrane distillation at the water-energy nexus: Limits, opportunities, and challenges
	Deshmukh A.; Boo C.; Karanikola V.; Lin S.; Straub A.P.; Tong T.; Warsinger D.M.; Elimelech M.
发表日期	2018
ISSN	17545692
起始页码	1177
结束页码	1196
卷号	11 期号:5
英文摘要	Energy-efficient desalination and water treatment technologies play a critical role in augmenting freshwater resources without placing an excessive strain on limited energy supplies. By desalinating high-salinity waters using low-grade or waste heat, membrane distillation (MD) has the potential to increase sustainable water production, a key facet of the water-energy nexus. However, despite advances in membrane technology and the development of novel process configurations, the viability of MD as an energy-efficient desalination process remains uncertain. In this review, we examine the key challenges facing MD and explore the opportunities for improving MD membranes and system design. We begin by exploring how the energy efficiency of MD is limited by the thermal separation of water and dissolved solutes. We then assess the performance of MD relative to other desalination processes, including reverse osmosis and multi-effect distillation, comparing various metrics including energy efficiency, energy quality, and susceptibility to fouling. By analyzing the impact of membrane properties on the energy efficiency of an MD desalination system, we demonstrate the importance of maximizing porosity and optimizing thickness to minimize energy consumption. We also show how ineffective heat recovery and temperature polarization can limit the energetic performance of MD and how novel process variants seek to reduce these inefficiencies. Fouling, scaling, and wetting can have a significant detrimental impact on MD performance. We outline how novel membrane designs with special surface wettability and process-based fouling control strategies may bolster membrane and process robustness. Finally, we explore applications where MD may be able to outperform established desalination technologies, increasing water production without consuming large amounts of electrical or high-grade thermal energy. We conclude by discussing the outlook for MD desalination, highlighting challenges and key areas for future research and development. © 2018 The Royal Society of Chemistry.
英文关键词	Desalination; Distillation; Energy utilization; Membrane technology; Waste heat; Water conservation; Water treatment; Wetting; Desalination technologies; Fresh water resources; Membrane distillation; Multieffect distillation; Process configuration; Research and development; Temperature polarization; Water treatment technologies; Energy efficiency; desalination; distillation; electrical power; electricity supply; energy efficiency; freshwater; high energy environment; membrane; performance assessment; polarization; research and development; reverse osmosis; technological development; thermal power; water technology; water treatment; wettability
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190259
作者单位	Department of Chemical and Environmental Engineering, Yale University, P.O. Box 208286, New Haven, CT 06520-8286, United States; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), Yale University, New Haven, CT 06520-8286, United States; Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235-1831, United States; Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523, United States
推荐引用方式 GB/T 7714	Deshmukh A.,Boo C.,Karanikola V.,et al. Membrane distillation at the water-energy nexus: Limits, opportunities, and challenges[J],2018,11(5).
APA	Deshmukh A..,Boo C..,Karanikola V..,Lin S..,Straub A.P..,...&Elimelech M..(2018).Membrane distillation at the water-energy nexus: Limits, opportunities, and challenges.Energy & Environmental Science,11(5).
MLA	Deshmukh A.,et al."Membrane distillation at the water-energy nexus: Limits, opportunities, and challenges".Energy & Environmental Science 11.5(2018).