Unstable convection flow as a controlling process of increasing salinity in the saline lake coastal aquifers: case of Maharlu Lake coastal aquifer

Tajabadi, Mehdi; Zare, Mohammad; Alijani, Farshad

doi:10.1007/s12665-017-6586-9

Cited by 4 publications

(6 citation statements)

References 23 publications

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“…Additionally, deterioration of groundwater quality of the surrounding aquifers due to the lake brine intrusions has been reported by Bahmani (2009); Jahanshahi and Zare (2016), and Tajabadi, Zare, and Alijani (2017).…”

Section: Introductionmentioning

confidence: 84%

“…According to the previous studies, lake surface sediments are contaminated by Cd, Co, Cr, Cu, Ni, and Pb (Forghani, Moore, Lee, & Qishlaqi, 2009), and lake SW is contaminated by As, B, Cu, Pb, Sb, and Se (Najmodini, 2011). Additionally, deterioration of groundwater quality of the surrounding aquifers due to the lake brine intrusions has been reported by Bahmani (2009); Jahanshahi and Zare (2016), and Tajabadi, Zare, and Alijani (2017).…”

Section: Introductionmentioning

confidence: 87%

“…Groundwater levels have declined throughout the basin in recent decades due to excess water extraction from the nearby aquifers (Sheikh‐leiveci et al, 2016) which provides hydrodynamic conditions for lake brines intrusion to the adjacent aquifers (Jahanshahi & Zare, 2016; Tajabadi et al, 2017).…”

Section: Study Areamentioning

confidence: 99%

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Hydraulic and geochemical interactions between surface water and sediment pore water in seasonal hypersaline Maharlu Lake, Iran

Khosravi

Zareị

Šráček

2020

Hydrological Processes

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Study of interactions between surface‐water and pore‐water in lakes is complicated due to spatio‐temporal heterogeneities in flow condition across the sediment–water interface. In this study, seasonal hypersaline Maharlu Lake was investigated by collecting surface‐water and pore‐water samples from four nests of multilevel piezometers installed at different distances from the inflow of rivers to the lake. The hydraulic heads in the piezometers as well as vertical profiles of Mg+2, Na/Cl, and Br/Cl were used to investigate both hydraulic and geochemical interactions between surface‐water and pore‐water in the lake. Depletion of lake surface water and pore water with respect to B, Br, Li+, K+, Mg2+ and the absence of Mg‐K chlorides and sulphates in the lake bed sediments is probably due to leakage of highly evaporated residual brine from the lake. Hydraulic gradients in the multilevel piezometric nests indicate that a general downward flow from surface‐water to pore‐water occurs across sediment–water interface. Vertical profiles of Br/Cl, Mg2+, and Na/Cl showed that the maximum flow rate was more than 1 m/yr close to the mouth of the inflowing rivers. The downward vertical flow was limited in the area far from the inflowing rivers due to the presence of an impermeable confining halite layer which interrupts the hydraulic connection between shallow pore water (less than 50 cm deep) and deeper zones. The hydraulic and geochemical interactions between surface‐water and pore‐water across sediment–water interface in the Maharlu Lake are of interest to find out the fate of pollutants and their distribution in the lake.

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Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 87%

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Hydraulic and geochemical interactions between surface water and sediment pore water in seasonal hypersaline Maharlu Lake, Iran

Khosravi

Zareị

Šráček

2020

Hydrological Processes

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“…Groundwater level has declined throughout Maharlu Basin in recent years due to excess water extraction from the nearby aquifers (Kazemi et al 2016). This provides preferred hydraulic conditions for brines intrusion from the lake to the adjacent aquifers (Jahanshahi and Zare 2016;Tajabadi et al 2017). The major sources of recharge to Maharlu Lake are ephemeral rivers of Khoshk and Babahaji ( Fig.…”

Section: Climatological and Hydrological Settingsmentioning

confidence: 99%

“…Subsurface intrusion of Maharlu brine to the adjacent aquifers has been reported by Tajabadi et al (2017). This causes increasing salinity of groundwater in the surrounding aquifers.…”

Section: Introductionmentioning

confidence: 95%

Characterizing Major Controls on Spatial and Seasonal Variations in Chemical Composition of Surface and Pore Brine of Maharlu Lake, Southern Iran

2018

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Maharlu Lake with Na-Cl water type is the terminal point of a closed basin in southern Iran. A total of 10 water samples from two rivers discharging to the lake and 78 water samples of surface and pore brine of Maharlu Lake have been collected from different depths (surface, 20, 50 and 100 cm) of four sampling stations along the lake during a period of lake water level fluctuation (November-2014 to July-2015). To investigate chemical interaction between lake surface-water and shallow pore-water, and to understand the major factors governing chemical composition of Maharlu brine, concentrations of major and minor (boron, bromide and lithium) solutes, pH and total dissolved solids (TDS) have been measured in collected water samples. Saturation indices of evaporite minerals in collected water samples have been also calculated. The chemical behavior of dissolved solutes and evaporative evolution of the lake brine during a hydrological period have been simulated using PHREEQC. The results of our investigations indicated that chemical composition of lake surface water and pore brine of Maharlu Lake are mainly connected with Lake water level fluctuations and distance from input rivers (and depth), respectively. Hydrochemical investigations and statistical analysis showed that the

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Geochemistry of groundwater and metal(loid) behavior in the costal aquifers of the Maharlu Lake, Iran

Khosravi

Zareị

Šráček

et al. 2022

Environ Sci Pollut Res

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Unstable convection flow as a controlling process of increasing salinity in the saline lake coastal aquifers: case of Maharlu Lake coastal aquifer

Cited by 4 publications

References 23 publications

Hydraulic and geochemical interactions between surface water and sediment pore water in seasonal hypersaline Maharlu Lake, Iran

Hydraulic and geochemical interactions between surface water and sediment pore water in seasonal hypersaline Maharlu Lake, Iran

Characterizing Major Controls on Spatial and Seasonal Variations in Chemical Composition of Surface and Pore Brine of Maharlu Lake, Southern Iran

Geochemistry of groundwater and metal(loid) behavior in the costal aquifers of the Maharlu Lake, Iran

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