Geothermal aided advanced desalination of highly saline water: From technology development to seasonal impact optimization

Access to clean drinking water is a critical global imperative, particularly in regions facing water scarcity. The present study aims to explore a sustainable approach for enhancing water quality by desalinating geothermal water which is extracted from a geothermal hotspot at Dholera, Gujarat. Since...

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Bibliographic Details
Published in:Groundwater for sustainable development 2024-11, Vol.27, p.101379, Article 101379
Main Authors: Chaudhary, Dipti, Sircar, Anirbid, Kumari, Roshni, Bist, Namrata, Yadav, Kriti, Dalsania, Kelvy P.
Format: Article
Language:English
Subjects:
byproducts
Circular economy
Desalination
drinking water
environmental impact
Geothermal water
groundwater
India
irrigation
renewable resources
Reverse osmosis
saline water
salinity
Seasonal analysis
Statistical analysis
Sustainability
sustainable development
viability
water quality
water shortages
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Summary:Access to clean drinking water is a critical global imperative, particularly in regions facing water scarcity. The present study aims to explore a sustainable approach for enhancing water quality by desalinating geothermal water which is extracted from a geothermal hotspot at Dholera, Gujarat. Since there is a shortage of clean and potable water in the area, it is advisable to use this renewable resource for drinking and irrigation purpose after treatment through a suitable method powered by organic rankine cycle (ORC) which not only serves the aim of sustainable approach but also has minimum environmental impact. The investigation illustrates fabrication and demonstration of geothermal-aided desalination unit and its plant set up at the study area for qualitative desalination of highly saline water. The system's performance is evaluated for seasonal variations in geothermal water, both before and after desalination. Results shows a significant reduction in contaminants, with decrease in salinity by 95.30% and total dissolved solids (TDS) by 96.91%. The novelty of this approach lies in salt extraction from the by-product of rejected water, contributing to resource recovery. This approach demonstrates an environmentally friendly and sustainable solution to address water scarcity in the region which is aligned with sustainable development goals (SDGs). The process's effectiveness for implementation is suggested by the strong p-values (all
ISSN:2352-801X
2352-801X
DOI:10.1016/j.gsd.2024.101379