Maximizing conjunctive use of surface and ground water under surface water quality constraints

Ejaz, Muhammad; Peralta, Richard C.

doi:10.1016/0309-1708(95)00004-3

Cited by 44 publications

(16 citation statements)

References 20 publications

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“…Thus, there is an urgent need to alleviate the demand on the upper aquifers and explore more sustainable sources to augment the present water supply. One potential solution is the conjunctive use of groundwater and surface water in order to maintain the balance between anthropogenic demand and water's natural availability for usage and recharge (Onta et al 1991;Ejaz and Peralta 1995;Emch and Yeh 1998).…”

Section: Introductionmentioning

confidence: 99%

Spatial Assessment of Water Quality in Peripheral Rivers of Dhaka City for Optimal Relocation of Water Intake Point

Rahman

Hossain

2007

Water Resour Manage

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In order to meet the ever increasing demand of drinking water, Dhaka Water Supply Authority (DWASA) of Bangladesh has installed a number of deep tube wells that tap the upper aquifers. However, in most parts of the city, the current groundwater abstraction exceeds the recharge rate, causing the groundwater to be mined systematically and be depleted of its reserve. Thus, there is an urgent need to alleviate the demand on the upper aquifers and explore more sustainable sources to augment the present water supply. This implies a conjunctive use of groundwater and surface water in order to maintain the balance between anthropogenic demand and water's natural availability. However, the surface water along these peripheral rivers is known to be highly polluted due to municipal and industrial untreated wastewaters that are discharged. This study analyzes the present water quality scenario along the surrounding rivers of Dhaka City pertaining to a 2-day field survey during the dry season of 2005. It uses a Geographic Information System (GIS) as a tool to arrive at a solution for relocation of the current intake point for surface water withdrawal. Derivation of water quality profiles (as a function of distance) along the downstream and upstream reaches of the current intake location indicated that a new location 12 km upstream of the present intake point could potentially be ideal for withdrawing surface water during the monsoon season. Such a proposed location was considered optimal due to the anticipated moderate construction costs of the transmission system that would be necessary to draw water to the current treatment plant. The study lays

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Section: Introductionmentioning

confidence: 99%

Spatial Assessment of Water Quality in Peripheral Rivers of Dhaka City for Optimal Relocation of Water Intake Point

Rahman

Hossain

2007

Water Resour Manage

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“…A simulation-optimization model was presented by Ejaz and Peralta (1995) to address the conflicts between water quantity and quality objective. The response matrix approach was used to link the simulation and optimization models.…”

Section: Simulation-optimization Modelingmentioning

confidence: 99%

Review: Computer-based models for managing the water-resource problems of irrigated agriculture

Singh

2015

Hydrogeol J

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Irrigation is essential for achieving food security to the burgeoning global population but unplanned and injudicious expansion of irrigated areas causes waterlogging and salinization problems. Under this backdrop, groundwater resources management is a critical issue for fulfilling the increasing water demand for agricultural, industrial, and domestic uses. Various simulation and optimization approaches were used to solve the groundwater management problems. This paper presents a review of the individual and combined applications of simulation and optimization modeling for the management of groundwater-resource problems associated with irrigated agriculture. The study revealed that the combined use of simulation-optimization modeling is very suitable for achieving an optimal solution for groundwater-resource problems, even with a large number of variables. Independent model tools were used to solve the problems of uncertainty analysis and parameter estimation in groundwater modelling studies. Artificial neural networks were used to minimize the problem of computational complexity. The incorporation of socioeconomic aspects into the groundwater management modeling would be an important development in future studies.

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“…As pointed out by de Wrachien and Fasso (2002), properly managed integrated water resources systems can yield more water with more economic rates than those separately managed surface-water or groundwater systems. Conjunctive use of surface water and groundwater has been extensively studied and a number of methods/techniques have been reported for supporting conjunctive water use planning and management (Ejaz and Peralta, 1995;Başaǧaoǧlu and Mariňo, 1999;Azaiez, 2002;Mohan and Jothiprakash, 2003;Pulido-Velazquez et al, 2008;Matrosov et al, 2011;Shi et al, 2012;Bejranonda et al, 2013;Khan et al, 2014). Although the existing water resources management systems have abilities to tackle interannual variability, they encounter difficulties in addressing long-term trends.…”

Section: Introductionmentioning

confidence: 99%

Conjunctive surface water and groundwater management under climate change

Zhang

2015

Front. Environ. Sci.

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Climate change can result in significant impacts on regional and global surface water and groundwater resources. Using groundwater as a complimentary source of water has provided an effective means to satisfy the ever-increasing water demands and deal with surface water shortages problems due to robust capability of groundwater in responding to climate change. Conjunctive use of surface water and groundwater is crucial for integrated water resources management. It is helpful to reduce vulnerabilities of water supply systems and mitigate the water supply stress in responding to climate change. Some critical challenges and perspectives are discussed to help decision/policy makers develop more effective management and adaptation strategies for conjunctive water resources use in facing climate change under complex uncertainties.

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Maximizing conjunctive use of surface and ground water under surface water quality constraints

Abstract: A simulation/optimization (sfo) model is presented to address the increasingly common conflicts between wate~ quantity and quality objectives. The model can assist water * x denotes a particular stimuli y denotes an index for a nested-DO loop

Cited by 44 publications

References 20 publications

Spatial Assessment of Water Quality in Peripheral Rivers of Dhaka City for Optimal Relocation of Water Intake Point

Spatial Assessment of Water Quality in Peripheral Rivers of Dhaka City for Optimal Relocation of Water Intake Point

Review: Computer-based models for managing the water-resource problems of irrigated agriculture

Conjunctive surface water and groundwater management under climate change

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