Fresh water production from atmospheric air: Technology and innovation outlook

Capturing water vapor from atmospheric air is a possible solution to local water scarcity, but it is very energy demanding. Energy consumption estimates of water-from-air technologies involving adsorption processes, thermo-responsive hydrophilicity switching polymers, air cooling processes, and reve...

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Veröffentlicht in:iScience Jg. 24; H. 11; S. 103266
Hauptverfasser: Peeters, Robin, Vanderschaeghe, Hannah, Rongé, Jan, Martens, Johan A.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Inc 19.11.2021
Elsevier
Schlagworte:
Energy engineering
Engineering
Environmental technology
Materials science
Engineering
Materials science
Energy engineering
Environmental technology
ISSN:2589-0042, 2589-0042
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Zusammenfassung:Capturing water vapor from atmospheric air is a possible solution to local water scarcity, but it is very energy demanding. Energy consumption estimates of water-from-air technologies involving adsorption processes, thermo-responsive hydrophilicity switching polymers, air cooling processes, and reverse osmosis of deliquescent salt solutions reveal that these technologies are not competitive when compared with seawater desalination, and the use of fresh water and wastewater sources. They only become a viable option in the absence of local liquid water sources and when long-distance transport for socio-economic reasons is not an option. Of interest, direct solar-driven technology for water-from-air production is an attractive means to disentangle the local water-energy nexus. It is expected that climate change will accelerate the introduction of water-from-air technologies in local water supply schemes. The optimal water-from-air technology depends on the climate, relative humidity, and temperature profiles. A world map is presented, indicating the optimal geographic location for each technology. [Display omitted] Environmental technology; Engineering; Energy engineering; Materials science
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ISSN:2589-0042
2589-0042
DOI:10.1016/j.isci.2021.103266