The occurrence of point source pollution in urban drainage system leads to urban black-odor water.Based on the water quality data obtained from the multiple monitoring system,a pollution tracing system was established by combining InfoWorks ICM-Delft 3D coupling model and the differential evolution(DE)algorithm.Taking a region of Zhongshan City as the research objective,the effectiveness of coupling model and DE algorithm for pollution source tracing was verified.The results suggested that for single point source continuous emission pollution tracing,the accuracy of pollution source location,flow and pollutant concentration was high.The relative error was kept within±0.12,and the accuracy of pollution tracing decreases with the increase of pollution source flow.With the increase of the pollution flow,the relative error of flow and concentration tracing decreases gradually,and the accuracy of tracing of the model for high flow pollution events was higher.The developed point pollution traceability system provides scientific guidance for the further research of urban drainage point source pollution tracing.
关键词
城市点源污染溯源/InfoWorks/ICM/Delft/3D/耦合模型/差分进化算法
Key words
urban point pollution traceability/InfoWorks ICM/Delft 3D/coupling model/differential evolution algorithm
维普
万方数据