A Study on Urban Water Reuse Management Modeling
Water reuse is being recognized as a sustainable urban water management strategy and is becoming increasingly attractive in urban water resources management. This paper focuses on urban water reuse planning and management in the context of sustainable development, and introduces a state of the art urban water reuse management model which utilizes a network flow optimization model and various stochastic programming methods. The objective of the model is to minimize the overall cost of the system subject to technological, societal and environmental constraints, therefore the optimum allocation of urban water resources can be obtained. Uncertainty issues associated with water demand and treatment quality are modeled by introducing stochastic programming methods, namely, two-stage stochastic recourse programming and chance-constraint programming. An application is presented in order to demonstrate the modeling process and to analyze the impact of uncertainties. This research is important in aiding the achievement in sustainable urban water resource management practices.
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