Presenter
Mr. Jiaqi Guo
Co-author(s)
Dr. Qi Tian, Prof. Wenyuan Wang, Prof. Zijian Guo, Miss. Shujie Zhao
Organisation
Dalian University of Technology
Sub-theme
2. Promoting Water Efficiency, Productivity and Services
Topic
2-4. Wastewater treatment and reuse
Body
As a key node in the energy supply system, the coal port's land resource deficit is severe. The permeability of the port region has dramatically declined as port construction and operation have advanced. In China, some codes and policies related to port planning and construction forbid the discharge of such rainwater into the sea because it contains significant volumes of coal dust in the coal port region. At present, the Chinese government departments require the port operator to complete a series of treatment for the polluted rainwater from coal ports, and this treatment work is done by sewage treatment plants in the coal port. Therefore, reasonable stormwater treatment plants capacity for the stormwater collection network become a necessary means to prevent the risk of stormwater flooding caused by extreme weather in the coal port area. This paper proposed a mathematical planning model for the location and scale optimization of the stormwater treatment plants taking into account the total cost including the cost of land in the port area, the cost of stormwater recycling, and the cost of rainwater treatment plant facilities, etc. In order to reduce the excessive use of land resources in the port area by the rainwater treatment facilities and ensure the efficiency of rainwater collection in the port area. We used the Storm Water Management Model (SWMM) from the United States Environmental Protection Agency (EPA) to simulate the rainwater runoff process in coal port area and performed the parameter sensitivity analysis and the parameter calibration by the modified Morris method and mutual information method. We connected the mathematical planning model with it and solved the mathematical planning model iteratively by a meta-heuristic algorithm, which can provide a reasonable scheme for the location and scale of stormwater treatment plants and effectively alleviate the condition of land constraint in dry bulk port areas while avoiding the risk of stormwater flooding in dry bulk port areas.