Effect of Seawater Intrusion on Seasonal Variations of Chemical Quality in Dayyer to Kangan Coastal Aquifer

Shooli Fard, A. (2014) Effect of Seawater Intrusion on Seasonal Variations of Chemical Quality in Dayyer to Kangan Coastal Aquifer. Masters thesis, University of Zabol.

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The precipitation decrease and uncontrolled exploitation of groundwater in coastal areas caused saltwater intrusion into aquifers and declining water quality. The purposes of this study is to assess the intrusion of saltwater into coastal aquifers and the identify the dominant processes in the aquifer hydro geochemical Dayyer - Kangan (Busher Province). After selecting 28 isometric wells with good distribution, Ec, pH and concentrations of major anions and cations in ground waters were determined, in 2013 October and 2014 April. Then the assessment of the sea water intrusion into the groundwater aquifers was performed by Hydro-geochemical data and the ratio of the ion. The results showed that the type of water in the region, mainly is Colorosodic, Sodic Sulphate and calcic Sulphate. When the distance between coastline and salt water intrusion decreased, the water type becomes Sodium chloride. The concentration and composition of the main ions indicates considerable influence of salt water into coastal aquifers. So that the comparison of chloride and electrical conductivity as a simple tracking indicates that there is a positive correlation between these two parameters. Also, the high levels of chloride ions relative to the total of carbonate and bicarbonate ions (method Revell) in the majority of wells in the region, indicate the intrusion of sea water into coastal aquifers.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Coastal Aquifer, Seawater Intrusion, Revelle Method, Composite Diagrams Method, Dayyer-Kangan Area
Subjects: S Agriculture > S Agriculture (General)
T Technology > TC Hydraulic engineering. Ocean engineering
Depositing User: admin admin1 admin2
Date Deposited: 23 May 2016 05:47
Last Modified: 23 May 2016 05:47
URI: http://eprints.uoz.ac.ir/id/eprint/620

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