Abstract
An integrated water environment management system is necessary in improving water quality, properly allocating water resources, and supporting socio-economic development. Specifically, dynamic modeling can be an efficient approach to accomplish this system. This paper aims to construct a dynamic linear optimization model to reflect a water environment management system which includes three sub-models with consideration of their interrelationships (a socio-economic model based on dynamic Input-Output model, a water resources cycle model, and a water pollutants flow model). Based on simulation, the model can precisely estimate trends of water utilization, water quality, and economic development under certain management targets, and propose an optimal plan. Taking Tianjin as a target area, this study utilized the model to analyze the potential of using reclaimed water to accomplish local water environment management and sustainable development plan while exploring the applicable approaches. This study indicates that the constructed water environment management system can be effective and easily adopted to assess water resources and environment while improving the trade-off between economic and environment development, as well as formulate regional development plan.
Highlights
With increasing economic and population growth in developing countries, water scarcity and pollution problems have becoming increasingly prominent in northern China
This study aims to use an integrated water environment management system to improve water quality, properly allocate water resources, and support socio-economic development, while reclaimed water should be used as an efficient approach to support this system [6]
Reclaimed water can effectively contribute clean water supply, and reduce water pollutants according to simulation results
Summary
With increasing economic and population growth in developing countries, water scarcity and pollution problems have becoming increasingly prominent in northern China. Reclaimed water is highly treated wastewater which is clear in appearance, odorless and is safe for a variety of beneficial uses [4]. It has been used in large municipalities in total water management, especially in areas with scarce water resources but rapid population and economic growth rate [5]. This study aims to use an integrated water environment management system to improve water quality, properly allocate water resources, and support socio-economic development, while reclaimed water should be used as an efficient approach to support this system [6]
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