Abstract
This hydrochemical study of the surface and groundwater in Khan AL-Baghdadi area, western Iraq, included the interpretation of physical, chemical, and biological properties. Water samples were collected from wells (14 samples) and surface water of Euphrates River (6 samples) for the dry and wet periods of October 2018 and April 2019, respectively. The stable isotopes analysis was performed for the dry period only. The surface water samples were characterized by slightly alkaline, fresh, excessively mineralized, Ca-chloride type, and hard to very hard water class. While the groundwater samples were characterized by slightly alkaline, brackish, excessively mineralized, Ca-chloride and Na-Chloride type, and hard to very hard water class. The stable isotopic analysis was used in studying the interaction between water resources of Euphrates River and groundwater. Stable isotopes (δD and δ18O) were used to study the hydrological aspects of water resources in the study area. The results showed that surface and groundwater samples have similar source with a correlation relationship between them, in addition to the clear effect of river recharge on groundwater. The variation in δ2H and δ18O signature of groundwater in the study area is caused mainly by variation in isotopic composition of recharge water zone and mixing water. Using the δ 2H and δ 18O diagram, all surface and groundwater samples were plotted below the global meteoric water line (GMWL) and Local Meteoric Water line (LMWL), indicating the influences of the evaporation processes and seasonal variation.
Highlights
The quality of groundwater is important according to the purpose of use
It appears that water of the surface and groundwater lie on the same regression line, which indicates the same source of rainwater r(source of feeding). to the results demonstrate the effect of water recharge from Euphrates River to groundwater in the study area (Figure-9)
The hydrochemistry analysis indicates that calcium ion is a predominant cation and Chloride is a predominant anion for surface water samples, whereas calcium and sodium ions are predominant cations and chloride is a predominant anion for groundwater samples
Summary
The quality of groundwater is important according to the purpose of use. The needs for drinking, industrial, and irrigation water vary widely [1]. Stable isotopic analysis (δ18O and δ2H) was used to observe the intermixing between the different water resources (wells and Euphrates River.) in western Iraq. LMWL was previously plotted from data obtained from isotopic analysis (2H and 18O) for rain water samples collected from five stations in Baghdad city in 2017 [4]and five stations in Baghdad city in 2012 [5]. In addition to data obtained from other previous studies [6, 7] This analysis was applied to test data from 3 stations in Baghdad and 2 stations in Samawa city, collected during 2014 [8]. Khan Al-Baghdadi represents the main area in the present research (Fig.1), located parallel to Euphrates River
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
