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Sorbent-based air water-harvesting systems: progress, limitation, and consideration

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SPRINGER
DOI: 10.1007/s11157-020-09558-6

关键词

Air water-harvesting system; Sorption; Condensation; Kinetics; Design

资金

  1. Universiti Kebangsaan Malaysia [GUP-2018-129, DIP-2015-028]

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Air water-harvesting systems are important for addressing global water scarcity, with sorbent-based systems currently being the most desirable choice. However, there is a lack of fundamental research in this field and limited availability of commercial instruments. Further studies on sorbent stability, life cycle, water absorbency, and heat and mass transport are essential for advancing these technologies.
Air water-harvesting systems are considered important technologies for overcoming the global water scarcity issue. Various relative humidity and cost considerations make sorbent-based air water-harvesting systems the most desirable technologies among current air water-harvesting systems. The limited availability of commercial instruments for air-water harvesting systems indicates a lack of fundamental studies on this field. In this regard, this review paper discusses and presents progress in the fields of sorbent materials and condensation and system design and future considerations in accelerating the commercialization of these technologies. Particularly, bio-inspired composition and design, mix design systems, use of renewable energy sources, modification of available sorbent materials according to functionalization, and composites are factors that require further attention. Fundamental studies of sorbent stability and life cycle, water absorbency, adsorption kinetics, heat and mass transport, regeneration condition, water-collecting surface design, and system design are essential.

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