Simulation‐Optimization Approach for Siting Injection Wells in Urban Area with Complex Hydrogeology

Managed aquifer recharge has become a standard water resources management practice to promote the development of locally sustainable water supplies and combat water scarcity. However, installation of injection wells for replenishment purposes in urban areas with complex hydrogeology faces many chall...

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Vydáno v:Ground water Ročník 62; číslo 2; s. 236 - 249
Hlavní autoři: Mok, Chin Man, Carrera, Barbara, Hort, Hiroko, Santi, Lauren, Daus, Anthony, Panday, Sorab, Jones, David, Partington, Brian, Ferguson, Everett
Médium: Journal Article
Jazyk:angličtina
Vydáno: Malden, US Blackwell Publishing Ltd 01.03.2024
Ground Water Publishing Company
Témata:
Aquifer management
Aquifer systems
Aquifers
Availability
Contamination
cost effectiveness
Environmental impact
Feasibility
Geology
Groundwater
Groundwater recharge
Hydrogeology
hydrologic models
Hydrology
Injection
Injection wells
Optimization
Plumes
Sustainable development
Treated water
Urban areas
Water resources
Water resources management
Water scarcity
water shortages
Water supply
Workflow
ISSN:0017-467X, 1745-6584, 1745-6584
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Popis
Shrnutí:Managed aquifer recharge has become a standard water resources management practice to promote the development of locally sustainable water supplies and combat water scarcity. However, installation of injection wells for replenishment purposes in urban areas with complex hydrogeology faces many challenges, such as limited land availability, potential impacts on municipal production wells and known subsurface contamination plumes, and complex spatially variable hydraulic connections between aquifer units. To assess the feasibility and cost‐effectiveness of injecting advanced treated water (ATW) into a complex urban aquifer system, a Simulation‐Optimization (SO) model was developed to automate a systematic search for the most cost‐effective locations to install new wells for injecting various quantities of ATW, if feasible. The generalized workflow presented here uses an existing MODFLOW groundwater model—along with advanced optimization routines that are publicly available—to flexibly accommodate a multiobjective function, complex constraints, and specific project requirements. The model successfully placed wells for injection of 1 to 4 MGD of ATW in aquifers underlying the study area. The injection well placement was primarily constrained by avoiding excessive impact on environmental sites with underlying groundwater plumes. The largest costs were for well installation and piping to the wells from the existing ATW pipes. This workflow is readily adaptable to other sites with different complexities, decision variables, or constraints. Simulation‐Optimization of Advanced Treated Water Injection
Bibliografie:The authors declare no conflicts of interest.
A simulation‐optimization approach based on minimizing cost helps with optimal siting of injection wells in a complex urban basin.
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ISSN:0017-467X
1745-6584
1745-6584
DOI:10.1111/gwat.13317