A planning model for the management of groundwater quality

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doi: 10.1029/WR015i006p01305
Authors:Willis, R.
Author Affiliations:Primary:
Humboldt State Univ., Dep. Environ. Resour. Eng., Arcata, Calif., United States
Volume Title:Water Resources Research
Source:Water Resources Research, 15(6), p.1305-1312. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0043-1397
Publication Date:1979
Note:In English. 19 refs.; illus. incl. tables
Summary:A dynamic planning model is presented for the optimal management of groundwater quality in regional aquifer systems. The groundwater system is conjunctively managed as a water supply resource and as a storage reservoir for waste water residuals. The waste waters are discharged to the groundwater basin through injection wells. Within the groundwater system, constituents are assumed to follow first-order chemical or biochemical reactions and linear equilibrium adsorption. The Galerkin finite element method is used to transform the flow and mass transport equations of the aquifer system into systems of ordinary differential equations which are imbedded as constraint equations in the planning model. The mathematical model, which is structured as a nonconvex programing problem, allows the planner or resource manager to determine (1) the optimal pumping and injection schedules (rates and locations) required to satisfy an exogenous water target and waste load demand and (2) the maximum injection concentrations that can be discharged to the basin without degrading the quality of the aquifer. Operational policies are developed for a 480-day operational cycle for a hypothetical groundwater basin, where it is assumed that groundwater extraction represents the principal resource of the aquifer system. Linear programing is used to identify the optimal planning policies. The important parameters affecting the optimal decisions are discussed.
Subjects:Aquifers; Fluid injection; Ground water; Injection; Liquid waste; Mathematical models; Pollution; Regional planning; Theoretical studies; Waste disposal; Waste management; Waste water; Water; Water quality; Water resources; Water supply
Record ID:1980025716
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute.
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