期刊
SUSTAINABLE WATER RESOURCES MANAGEMENT
卷 8, 期 6, 页码 -出版社
SPRINGER INT PUBL AG
DOI: 10.1007/s40899-022-00754-6
关键词
Water Quality Index; Drinking purpose; Irrigation use; Coastal semi-arid zone; Morocco
This study used hydrochemical analysis of coastal aquifers in the Essaouira basin, Morocco to evaluate groundwater quality for various uses. The results showed that the groundwater is suitable for agricultural purposes, but requires treatment before domestic use. This study provides important insights for the management of groundwater resources in the Essaouira basin and similar areas.
Groundwater hydrochemical of coastal aquifers (Plio-Quaternary, Turonian, and Hauterivian) of Essaouira basin, Morocco, was used to evaluate the groundwater quality for drinking and irrigation uses as well as to determine the processes controlling its mineralization. In this semi-arid coastal zone, The rock-water interaction (dissolution of evaporite and carbonate minerals) evaporation, reverse cations exchange, and seawater intrusion are the main processes responsible for the mineralization of groundwater and their facies. Water Quality Index (WQI), and sodium percent (%Na), sodium adsorption ratio (SAR), permeability index (PI), and Kelly index (KI) ratios were applied to assess the groundwater for drinking and irrigation uses. WQI shows that the groundwater is generally of poor quality and not suitable for direct usage and requires treatment before domestic use. Based on %Na, SAR, PI, and KI, the groundwater remains adequate for agricultural purposes. However, an attention should be accorded to groundwater salinization processes. The approach followed as well as the results of this paper remain valid for better and sustainable management of the vital resource within the Essaouira basin and similar basins.
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