20th-SWIM 20th-SWIM H.F.Abd-Elhamid H.F.Abd-Elhamid 1 An Investigation into Control of Saltwater Intrusion Considering the Effects of Climate Change and Sea Level Rise H. F. Abd- Elhamid A.A. Javadi 20th - SWIM School of Engineering, Computing and Mathematics Computational Geomechanics Group School of Engineering, Computing and Mathematics, University of Exeter, Exeter, UK.
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20th-SWIMH.F.Abd-Elhamid1 An Investigation into Control of Saltwater Intrusion Considering the Effects of Climate Change and Sea Level Rise H. F. Abd-Elhamid.
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- Surface spread (unconfined)- Surface spread (unconfined)-- injection wellsinjection wells (confined)(confined)- Injected water may be from - Injected water may be from (surface water, ground water, (surface water, ground water, treated waste, desalinated treated waste, desalinated seawater.)seawater.)
The limitations of the previous methods to control SWIThe limitations of the previous methods to control SWI
Short term solution (population growth)
Not efficient for deep aquifers Not efficient for deep aquifers
Availability of fresh water for rechargeAvailability of fresh water for recharge
The cost of Fresh water The cost of Fresh water
Using treated waste water for rechargereated waste water for recharge
Using desalinated sea water for rechargeesalinated sea water for recharge
Disposal of brackish water to the sea and the effects on marines, fishing and tourism Disposal of brackish water to the sea and the effects on marines, fishing and tourism
Sea level rise due to climate change not considered
1-1-((AA)) Abstract brackish waterAbstract brackish water2-2-((DD)) Desalinate brackish water using Desalinate brackish water using (RO)(RO) 3-3-((RR)) Recharge the Recharge the desalinated brackish water (part)
Advantages 1-1- Increase fresh water storage ncrease fresh water storage 2- Decrease saline water volume 2- Decrease saline water volume 3- Control saltwater intrusion3- Control saltwater intrusion4- Increase water resources4- Increase water resources
Overcomes shortcomings of previous methods - RORO: availability and cost of fresh watervailability and cost of fresh water-- Recovery rate (70-90%)Recovery rate (70-90%)-- Disposal of brine (30-10%) Disposal of brine (30-10%)
The objectives of the 2D-FEST ModelThe objectives of the 2D-FEST Model
Develop a coupled transient finite element model for computing solute transport Develop a coupled transient finite element model for computing solute transport through saturated/unsaturated soils.through saturated/unsaturated soils.
Study saltwater intrusion of miscible solute transport (density-dependant)Study saltwater intrusion of miscible solute transport (density-dependant) Use the developed model predict the extent and solute concentrations Use the developed model predict the extent and solute concentrations
Study the effect of sea level rise due to climate change on saltwater intrusion for Study the effect of sea level rise due to climate change on saltwater intrusion for the current century (IPCC 2001).the current century (IPCC 2001).
Use the developed model to study the control of saltwater intrusion using different Use the developed model to study the control of saltwater intrusion using different scenarios.scenarios.
Study the efficiency of the proposed methodology to provide a new source of Study the efficiency of the proposed methodology to provide a new source of water for coastal regions. water for coastal regions.
The developed coupled transient finite element model gave good results to predict the extent The developed coupled transient finite element model gave good results to predict the extent
and solute concentrations in coastal aquifers.and solute concentrations in coastal aquifers.
The developed model can be used to Study saltwater intrusion of miscible solute transport The developed model can be used to Study saltwater intrusion of miscible solute transport
(density-dependant).(density-dependant). The developed model can be used to study the effects of sea level rise on saltwater intrusion.The developed model can be used to study the effects of sea level rise on saltwater intrusion.
Future (cont. current) workFuture (cont. current) work
Use the developed model to study the control of saltwater intrusion using different Use the developed model to study the control of saltwater intrusion using different scenarios.scenarios.