Industrial park water system optimization with joint use of water utility sub-system
2019
Jiang, Wei | Zhang, Zhuang | Deng, Chun | Tang, Xu | Feng, Xiao
This paper develops a new superstructure-based methodology for the synthesis of industrial park water system. The model includes sub-system of water utility, water-using and wastewater treatment for each single plant. It considers the single and inter-plant water integration and sharing strategy of water utility sub-system. The objective function is to minimize the partial annualized cost of the industrial park water system. Results show that all plants (i.e. Plants 1 and 2) in the industrial park can share a desalted water station in Plant 2. Because the water production ratio of desalted water station in Plant 2 is lower than that of Plant 1 and it indicates that the desalted water station in Plant 2 is with high efficiency to produce the same quality of desalted water. The cost can be decreased from 1.5 × 108 CNY/y (preliminary design) to 8.42 × 107 CNY/y (inter-plant optimization) with the flowrate reduction of water resource from 2694.954 t/h to 2045.184 t/h. It achieves the water minimization and effective joint use of water utility system.
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