On Obtaining Best Compromise Solutions for Municipal Water Useby Ronald K. Williams, North Dakota State Univ, United States,
G. Padmanabhan, North Dakota State Univ, United States,
Abstract: Approaches to determine the 'best' use of available resources, including reuse of treated effluent streams have frequently relied on optimization techniques which seek to minimize one decision parameter, such as cost to the city. In a real-world situation however, several competing decision parameters must be weighed simultaneously to find a 'best compromise' solution. Such an optimization problem was formulated as a multiple objective decision making (MODM) model using surrogate worth trade-off (SWT) approach. Solutions of the non-linear optimization problem were obtained for SWT analysis by using a powerful and very user-friendly optimization package, General Algebraic Modelling System (GAMS). The model was applied to the city of Moorhead, MN.
Subject Headings: Municipal water | Optimization models | Water use | Computer models | Hydrologic models | Parameters (statistics) | Computer analysis | Decision making | Urban areas | North America | Minnesota | United States
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