Flexible batch electrodialysis for low-cost solar-powered brackish water desalination
<jats:title>Abstract</jats:title><jats:p>Globally, 1.6 billion people in rural regions face water scarcity. Expanding freshwater access via brackish groundwater desalination can provide additional resources to address this challenge. In this study, we have developed a time-variant...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2024
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| Online Access: | https://hdl.handle.net/1721.1/154890 |
| _version_ | 1826195269006393344 |
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| author | He, Wei Le Henaff, Anne-Claire Amrose, Susan Buonassisi, Tonio Peters, Ian Marius Winter, Amos G |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering He, Wei Le Henaff, Anne-Claire Amrose, Susan Buonassisi, Tonio Peters, Ian Marius Winter, Amos G |
| author_sort | He, Wei |
| collection | MIT |
| description | <jats:title>Abstract</jats:title><jats:p>Globally, 1.6 billion people in rural regions face water scarcity. Expanding freshwater access via brackish groundwater desalination can provide additional resources to address this challenge. In this study, we have developed a time-variant electrodialysis reversal (EDR) technology that flexibly uses available solar energy for desalination. Our proposed photovoltaic-powered desalination system can vary pumping and EDR power to match the availability of intermittent solar power, maximizing the desalination rate. Our results show improved system performance with the direct use of 77% of available solar energy—91% more than in conventional systems—and a 92% reduction in battery reliance. In a village-scale desalination case study in India, these system improvements lead to a 22% reduction in water cost, making the technology competitive with the currently used on-grid, village-scale reverse osmosis systems that are mainly powered by fossil fuels. Future advances could further reduce costs, providing an improved, sustainable solution to water scarcity in remote areas.</jats:p> |
| first_indexed | 2024-09-23T10:10:03Z |
| format | Article |
| id | mit-1721.1/154890 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2025-02-19T04:18:54Z |
| publishDate | 2024 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1548902024-12-23T05:09:42Z Flexible batch electrodialysis for low-cost solar-powered brackish water desalination He, Wei Le Henaff, Anne-Claire Amrose, Susan Buonassisi, Tonio Peters, Ian Marius Winter, Amos G Massachusetts Institute of Technology. Department of Mechanical Engineering <jats:title>Abstract</jats:title><jats:p>Globally, 1.6 billion people in rural regions face water scarcity. Expanding freshwater access via brackish groundwater desalination can provide additional resources to address this challenge. In this study, we have developed a time-variant electrodialysis reversal (EDR) technology that flexibly uses available solar energy for desalination. Our proposed photovoltaic-powered desalination system can vary pumping and EDR power to match the availability of intermittent solar power, maximizing the desalination rate. Our results show improved system performance with the direct use of 77% of available solar energy—91% more than in conventional systems—and a 92% reduction in battery reliance. In a village-scale desalination case study in India, these system improvements lead to a 22% reduction in water cost, making the technology competitive with the currently used on-grid, village-scale reverse osmosis systems that are mainly powered by fossil fuels. Future advances could further reduce costs, providing an improved, sustainable solution to water scarcity in remote areas.</jats:p> 2024-05-09T19:51:10Z 2024-05-09T19:51:10Z 2024-04-01 2024-05-09T19:45:58Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/154890 He, Wei, Le Henaff, Anne-Claire, Amrose, Susan, Buonassisi, Tonio, Peters, Ian Marius et al. 2024. "Flexible batch electrodialysis for low-cost solar-powered brackish water desalination." Nature Water, 2 (4). en 10.1038/s44221-024-00213-w Nature Water Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | He, Wei Le Henaff, Anne-Claire Amrose, Susan Buonassisi, Tonio Peters, Ian Marius Winter, Amos G Flexible batch electrodialysis for low-cost solar-powered brackish water desalination |
| title | Flexible batch electrodialysis for low-cost solar-powered brackish water desalination |
| title_full | Flexible batch electrodialysis for low-cost solar-powered brackish water desalination |
| title_fullStr | Flexible batch electrodialysis for low-cost solar-powered brackish water desalination |
| title_full_unstemmed | Flexible batch electrodialysis for low-cost solar-powered brackish water desalination |
| title_short | Flexible batch electrodialysis for low-cost solar-powered brackish water desalination |
| title_sort | flexible batch electrodialysis for low cost solar powered brackish water desalination |
| url | https://hdl.handle.net/1721.1/154890 |
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