| Issue |
E3S Web Conf.
Volume 708, 2026
7th International Conference on Smart Applications and Water Information Systems: “Intelligent Systems, Geospatial Technologies and Modeling for the Sustainable Management of Water Resources” (SAWIS 2025)
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|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 12 | |
| Section | Water Quality, Treatment, and Environmental Processes | |
| DOI | https://doi.org/10.1051/e3sconf/202670802004 | |
| Published online | 30 April 2026 | |
Experimental study of growth kinetics in a new freezing-based pretreatment for desalination using Reverse Osmosis
1 Hydraulic Systems Analysis Laboratory, Mohammedia School of Engineers, Mohammed-V University in Rabat, Morocco
2 Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR5007, 43 boulevard du 11-Novembre 1918, Villeurbanne, 69100, France
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
This work conducts an experimental study of the operational parameters influencing the freeze-based pretreatment process, to improve the efficiency of reverse osmosis (RO) desalination. The effects of the temperature gradient (7 and 9 °C), subcooling degree (1.25 and 1.75 °C), and initial salt concentration (35 and 50 g/kg) on the ice growth rate were investigated using a dynamic-layer crystalliser. The findings show that an increased initial salt concentration and a higher subcooling degree lowered the growth rate, whereas a higher temperature gradient enhanced it. These results align with the existing knowledge of crystal formation and demonstrate the potential efficacy of freezing as a pretreatment in hybrid desalination systems.
© The Authors, published by EDP Sciences, 2026
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