Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"seawater intrusion"”.
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Using electrical resistivity tomography to calibrate seawater intrusion models along the Alabama Gulf Coast
… used to quantify the extent and magnitude of seawater intrusion (SI). Since coastal communities must account for SI into local aquifers, numerical models can be an effective planning and management tool as coastal populations increase. While these models tend to be limited by the availability …
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Assessing Aquifer Vulnerability to Seawater Intrusion : Application of the GALDIT-Index to the Emilia-Romagna Coastline.
Saltwater intrusion (SWI) in coastal aquifers due to excessive groundwater withdrawals (for civil, agricultural and industrial purposes) has become a major concern affecting a large number of coastal aquifers worldwide. This trend is expected to grow in the very near future due to the expected …
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Risk analysis and mitigation of seawater intrusion for the Gaza strip coastal aquifer under climate induced changes
… freshwater aquifers. In the Mediterranean area, seawater intrusion (SWI) has sometimes become a major threat to coastal area freshwater resources, mainly due to lack of appropriate groundwater resources management. Current projections of future potential climatic scenarios further complicate the …
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The use of subsurface physical barriers to control seawater intrusion in heterogeneous coastal aquifers: experimental and numerical study
… on the impact of subsurface physical barriers on seawater intrusion and flow dynamics in commonly found heterogeneous formations and to propose the mixed physical barrier (MPB) as a new countermeasure for seawater intrusion control purposes. In overall, this thesis is subdivided into eight …
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Artificial Recharge of Groundwater with Recycled Municipal Wastewater in the Pajaro Valley
… Valley is facing groundwater depletion and rapid seawater intrusion. Artificial recharge of recycled water into groundwater aquifers in other locations has proven to be an effective method of mitigating groundwater depletion and seawater intrusion while providing a sustainable water supply. Two …
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Evaluation of Zinc Orthophosphate to Control Lead Solder Corrosion in Waters With High Chloride to Sulfate Mass Ratio
… around the country due to use of road salts and seawater intrusion, which can increase the chloride-to-sulfate mass ratio (CSMR) and trigger serious water lead contamination from galvanic lead solder: copper pipe corrosion. Previous attempts to control this problem through simple water chemistry …
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Identification of surface water and groundwater relationship at Universiti Tun Hussein Onn Malaysia (UTHM) Campus
… by Na-Cl type of saline water due to seawater intrusion which indicated that the interaction of surface water and groundwater were not occur in this study area and the recharge areas might be located outside this area. This result interpreted that the lakes and swale were remained in …
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Polyurethane Sealant to Mitigate Crack Effects in Glass-to-Metal Sealed Underwater Connectors
… during operational and handling conditions. Seawater intrusion, however, is determined to be the primary failure mode. An extensive cleaning procedure allows for partial recovery from salt damage, although the process is unsuitable for field maintenance. We show promising test results in …
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Fluid and Pressure Dynamics in Natural and Engineered Coastal Aquifer Systems
… increasingly impacted by groundwater depletion, seawater intrusion, and land subsidence driven by long-term pumping. This dissertation uses 3D numerical modeling to evaluate how variable-density flow and geological heterogeneity influence pressure response, intrusion geometry, and deformation in …
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Modeling injection and extraction wells for seawater desalination in SEAWAT
… and disposal systems are gaining interest for seawater desalination in comparison with the older open ocean intake/discharge systems that induce many environmental problems. Facilities using reverse-osmosis technology to desalinate seawater require stringent feed water quality to operate …
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The performance of integrated groundwater treatment system in treating shallow groundwater in Parit Raja, Johor
… indicates that the groundwater is influenced by seawater intrusion. For post-aeration and sedimentation processes, the most suitable time taken ranged between 18 hours and 48 hours. For filtration, the most suitable customised filter tank was Filter type D with brick layer as the dominant …
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Caratterizzazione idrogeologica avanzata dell’acquifero alluvionale della piana costiera di Muravera
… water supply can lead to over-exploitation and seawater intrusion phenomena. Saltwater intrusion is a critical socio-economic and environmental issue in the coastal plain of Muravera, south-eastern Sardinia (Italy). Since the early fifties the natural hydrodynamic equilibrium between …
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Hard and soft cap groundwater allocations: a comparison of groundwater pumping restrictions on hydrologic and economic outcomes
… negative consequences such as stream depletion, seawater intrusion, or land subsidence. An increasing number of groundwater management districts are restricting individual pumping in an effort to limit, or even reverse, such consequences. The nature of groundwater availability lends itself to …
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Electrical resistivity of sandy soil with water, leachates and seawater
… distilled water, tap water, three leachates and seawater. For a landfill system situated near a salt water body, the effects of seawater and seawater-leachate intrusion have also been scrutinized. For the measurement of electrical resistivity for different soil density and contamination …
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Changes in Soil Salinity Levels with the Use of Recycled Water on Cool Season Vegetables
… a multi-billion dollar industry. Near the coast, seawater intrusion has threatened to degrade the groundwater quality due to over-pumping of the aquifer. The Monterey Regional Water Pollution Control Agency (MRWPCA), in partnership with the Monterey County Water Resources Agency, has provided …
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The influence of surface - subsurface connectivity on groundwater flow and solute transport in a deltaic aquifer
… side, it includes two sub-cases: transient seawater intrusion and steady density-driven groundwater circulation. The simulation results show that contaminant transport is mainly controlled by the sand fraction and paleo-channel stacking patterns. Surface rivers enhance the extent of vertical …
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The capacity of the Cape Flats aquifer and its role in water sensitive urban design in Cape Town
… of stormwater while also reducing the risk of seawater intrusion. MAR was shown to provide a valuable means of increasing groundwater storage, improving the supply potential of the CFA for water supply while aiding the prevention or mitigation of the seasonal flooding that occurs on the Cape …