Effects of intake interruptions on dune infiltration systems in the Netherlands, their quantification and mitigation

Stuyfzand, Pieter J.; Schans, M.L. van der

doi:10.1016/j.scitotenv.2018.02.104

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…These units present slight topographic, granulometric and compositional variations, and show certain differences in the hydrochemistry of the phreatic aquifer. Due to their high permeability, these positive geoforms act as preferential zones for rainwater recharge (Kennett‐Smith et al, 1994; Stuyfzand & van der Schans, 2018), leading to the formation of low‐salinity water lenses (Carol et al, 2022; Carretero et al, 2013; Cozzolino et al, 2017; Giambastiani et al, 2021). The hydrodynamic functioning of these lenses is similar to the one traditionally defined in ocean island environments (e.g., Fetter, 1972; Ruppel et al, 2000; Underwood et al, 1992; Vacher, 1988), depending their development and width to the topography, extension and permeability of the littoral geoform that store them and the recharge rate (Chesnaux & Allen, 2008).…”

Section: Discussionmentioning

confidence: 99%

Hydrogeochemical processes as a conditioner of freshwater lenses associated with coastal deposits

Julieta,

Álvarez,

Carolina

et al. 2024

Hydrological Processes

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The aim of this work was to study the processes and factors conditioning the hydrochemistry of freshwater lenses associated with Holocene coastal deposits in an area of the Argentinean Atlantic coast. For this purpose, geomorphological units were mapped and a shallow groundwater monitoring network was established, including pre‐existing boreholes and shallow exploration wells. During the construction of the shallow exploration wells, sediment samples were extracted to determine the texture and mineralogical characteristics. Four samplings were carried out to measure in situ physicochemical parameters and to determine majority ions in the water. The chemical data were analysed considering the associated geomorphology, lithology, water balance and hydrodynamics. The geomorphological and lithological characteristics are the combined factors that favour the preferential rainwater recharge processes. Geoforms with greater topography and extension (continental and coastal dunes) tend to store freshwater lenses, while those with lower topography and little areal extension (sand sheets and beach ridges) have very thin lenses and tend to become salinized. Climate and local water balance are factor that determines that groundwater recharge occurs preferentially in winter. This causes increases in groundwater levels and a decrease in the groundwater EC. On the other hand, mineralogy is a factor that conditions the geochemical processes associated with the water–sediment interaction. Within the main geochemical processes, the dissolution and/or mineral weathering, the dissolution of CO2(g) and ion exchange determine the presence of different hydrochemical facies, where Ca‐HCO3 facies dominates in elevated geoforms, while Na‐Cl in lower ones. The results obtained in this work have provided an understanding of the factors and processes that condition groundwater chemistry in coastal deposits, being of vital importance for the management of water resources.

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Section: Discussionmentioning

confidence: 99%

Hydrogeochemical processes as a conditioner of freshwater lenses associated with coastal deposits

Julieta,

Álvarez,

Carolina

et al. 2024

Hydrological Processes

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“…In municipal set-ups, these migration rates of dissolved pollutants from solid dumpsites into nearby water reservoirs remain a serious concern to environmental experts. (Stuyfzand and Van der Schans, 2018).…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of Seepage Velocity Influence on Transport of Dissolved Heavy Metals from Waste-Dumps to River Channel

Zablon¹,

Kerongo²,

Robert³

2022

IJPAMR

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Increasing rate of seepage velocity from several formation characteristics, such as permeability and porosity, in water aquifer environment greatly prompt pollution of water reservoirs within a short period of time. Considerably, migration rate of dissolved heavy metals from Solid Waste Dumpsites (SWD), such as municipal dumpsites and landfills, through heterogeneous aquifer environment, and finally into nearby water reservoirs are mainly influenced by variation of seepage velocity within the soil and water environment. This presents a dynamic system for water pollution that was studied using a formulated mathematical model to describe the transport process of dissolved heavy metals, mainly characterized by seepage velocities, within the water aquiferous environment. Permeability, porosity, fluid pressure and concentration of heavy metals in aquiferous environment were used as principal parameters that influence seepage velocity of the metals, in dissolved state, through the structural formation of water aquifers. The derived mathematical equations that constitute the model of this study were generated through Darcy's law and the equation of continuity. The model was validated on structural river aquifer sediments, and it was solved using graphical method through matlab opensource software. The initial and boundary conditions were obtained by discretizing the geological setting of flow region so as to transform the gradient of the head, h x   into the time domain.

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Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of Seepage Velocity Influence on Transport of Dissolved Heavy Metals from Waste-Dumps to River Channel

Rogito¹,

Kerongo²,

Robert³

2022

Preprint

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Increasing rate of seepage velocity from several formation characteristics, such as permeability and porosity, in water aquifer environment greatly prompt pollution of water reservoirs within a short period of time. Considerably, migration rate of dissolved heavy metals from Solid Waste Dumpsites (SWD), such as municipal dumpsites and landfills, through heterogeneous aquifer environment, and finally into nearby water reservoirs are mainly influenced by variation of seepage velocity within the soil and water environment. This presents a dynamic system for water pollution that was studied using a formulated mathematical model to describe the transport process of dissolved heavy metals, mainly characterized by seepage velocities, within the water aquiferous environment. Permeability, porosity, fluid pressure and concentration of heavy metals in aquiferous environment were used as principal parameters that influence seepage velocity of the metals, in dissolved state, through the structural formation of water aquifers. The derived mathematical equations that constitute the model of this study were generated through Darcy’s law and the equation of continuity. The model was validated on structural river aquifer sediments, and it was solved using graphical method through matlab open-source software. The initial and boundary conditions were obtained by discretizing the geological setting of flow region so as to transform the gradient of the head, into the time domain.

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Effects of intake interruptions on dune infiltration systems in the Netherlands, their quantification and mitigation

Cited by 10 publications

References 18 publications

Hydrogeochemical processes as a conditioner of freshwater lenses associated with coastal deposits

Hydrogeochemical processes as a conditioner of freshwater lenses associated with coastal deposits

Mathematical Modeling of Seepage Velocity Influence on Transport of Dissolved Heavy Metals from Waste-Dumps to River Channel

Mathematical Modeling of Seepage Velocity Influence on Transport of Dissolved Heavy Metals from Waste-Dumps to River Channel

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