Multi-objective Optimal Allocation of Water Resources Based on Water Supply with Different Quality

According to that different water source can supply different water quality and that different users have different quality requirements,the actual conditions of water supply and demand in Tianjin are analyzed.The area is divided into three sub-distract.The water supply includes local surface water,ground water,water transfer project and other water sources.Water users classified as industrial water,agricultural water,domestic water and water for ecological use.Then the multi-objective optimal allocation model of water resources based on water supply in different quality is established by considering the objects of economy,social security and eco-environments.The model is solved by the large-scale general optimization genetic algorithm(GA) with the help of Evolver of risk decision analysis softwareThe DecisionTools Suite(5.5 Industrial).Three regional water resources allocation programs are obtained.The results show that the industrial water and domestic water requirements can be well meet,but the agricultural water and ecological water are lack to a certain extent.Finally,the related causes are analyzed and the future development suggestions are presented.