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A review of the methods of harvesting atmospheric moisture

  • Energy, Environment and Green Technologies for the Future Sustainability
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Abstract

Moisture is an inherent constituent of air present across the world. The relative humidity varies with the change in temperature and climate specific to a region. In some regions of the world, there may be a relatively inadequate number of grains of moisture in the air in comparison with other regions. These factors widen the scope for the deployment of decentralized technology to capture water. The effectiveness in capturing moisture gains significance in these regions. Among the numerous forms of moisture, fog and dew are studied in depth. Over time, flora and fauna in different ecosystems have adapted to capture moisture as well as repel excesses of it according to their requirements. Therefore, bio-inspired studies and tailored engineering strategies have been incorporated in this review. Since efficient technologies are required at moisture-scarce locations, active moisture harvesting has also been studied. The use of innovative materials along with different energy sources to capture water is elaborated. The effects of climate change and environmental contamination on harvested moisture are therefore assessed. Community participation and economical use of harvested fog or dew influence the sustainability of moisture-capture projects. Therefore, this article also provides an insight into the services of decentralized water-harvesting projects run by diverse organizations and researchers across the globe.

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Acknowledgements

The authors are thankful to the support of Mr. Hanwant Singh Rathore and Mr. Nirmal Gehlot from Unnat Bharat Abhiyan and CETSD, IIT Jodhpur. We also thank Ms. Aswathy Puthukkulam from CETSD IITJ for her help while updating the draft of the document.

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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by the M.A. and Dr. A.N. The first draft of the manuscript was written by M.A., and all authors commented on previous versions of the manuscript. Dr. A.P. contributed to the editing of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Meraj Ahmad.

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The authors declare no competing interests.

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Ahmad, M., Nighojkar, A. & Plappally, A. A review of the methods of harvesting atmospheric moisture. Environ Sci Pollut Res 31, 10395–10416 (2024). https://doi.org/10.1007/s11356-023-30727-x

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  • DOI: https://doi.org/10.1007/s11356-023-30727-x

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