Developing a Conflict Resolution Model for Groundwater Quantity and Quality Management: A Case Study

摘要

In this paper, a conflict resolution methodology for conjunctive use of surface andgroundwater resources is developed using Nondominated Sorting Genetic AlgorithmII (NSGA-II) and the Young conflict resolution theory. The proposed model isapplied to the Tehran Aquifer. Annual domestic water consumption in the Tehranmetropolitan area is close to one billion cubic meters. The sewer system in thisregion consists of the traditional absorption wells and domestic waste water pollutesgroundwater resources. Some part of the domestic wastewater is drained into localrivers and partially contaminates the surface water resources. This polluted surfacewater is used in conjunction with groundwater for irrigation purposes in the southernpart of the Tehran.Decision makers and stakeholders in the study area have some conflicting interestssuch as water supply with acceptable quality, reducing the pumping costs, improvingthe groundwater quality, reducing the construction costs of the Tehran waste watercollection system and controlling the groundwater table fluctuations. In the proposedmethodology, the MODFLOW and MT3D groundwater quantity and qualitysimulation models are linked with the NSGA-II optimization model to develop aPareto front among the objectives. The best point on the Pareto front is thencalculated using the Young conflict resolution theory. The results of the proposedmodel show the significance of applying an integrated approach to surface andgroundwater resources in the study area.