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556.131.3:628.116 (1) |
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SM ISO690:2012 VASEASHTA, Ashok. Decentralized atmospheric water harvesting - a step towards future of water sustainability. In: Ecological and environmental chemistry : - 2022, Ed. 7, 3-4 martie 2022, Chișinău. Chisinau: Centrul Editorial-Poligrafic al USM, 2022, Ediția 7, Vol.1, p. 77. ISBN 978-9975-159-07-4.. 10.19261/eec.2022.v1 |
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Ecological and environmental chemistry Ediția 7, Vol.1, 2022 |
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Conferința "Ecological and environmental chemistry 2022" 7, Chișinău, Moldova, 3-4 martie 2022 | |
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CZU: 556.131.3:628.116 | |
Pag. 77-77 | |
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Rezumat | |
Water is fundamental to human survival. Although present abundantly on earth, the supply of clean and safe water in adequate amount and sustainable manner is a global challenge, since the presence of organic and inorganic contaminants, with unknown toxico-kinetics, in waterbodies has developed one of the most alarming issue. The technologies that are employed for water treatment and its desalination remain inefficient in removing many contaminants, especially the ones that are present in trace concentrations, including micro/nano plastics, pharmaceuticals, pesticides, long-chain hydrocarbons, etc. Thus, we must revisit the global reserves of water in an attempt to utilize sources which may be under-utilized and/or cost effective. Out of 2.5% of total freshwater reserve available globally, it seems that over 30.1% is ground water, 68.6% is polar ice and the remaining 1.3% is distributed among various forms such as lakes ~0.26%, ice/snow ~0.97%, rivers ~0.006% and atmospheric water is about 0.037% - which is significant amount considering that nature uses atmospheric condensation for rain and snow. It appears logical to tap into atmospheric water, as an obvious choice for sustainable water production. This presentation investigates various ways to capture atmospheric water as a decentralized way to produce clean water globally and its feasibility. Various technologies are currently used for capturing atmospheric water. We present several chemical formations and nanomaterials-based frameworks for capturing water, their efficiency of production and cost/benefit analysis of atmospheric water harvesting as a means future of water sustainability. |
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Cuvinte-cheie water, sustainability, Harvesting, nanomaterials, toxicokinetics |
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