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以淮河流域主要污染指标氨氮(NH3-N)和CODMn模拟淮河中游颖河口至田家庵河段水质状况,结合排污口多年排污实测资料,运用SMS-RMA4二维水质模块建立淮河中游颖河口至田家庵河段二维水质模型,并对模拟结果进行了验证和分析。同时对区段内一大型分汊河道(凤台大桥—平圩大桥段)进行了特定时段的分污量计算,研究得出分汊河道各汊口处污染物浓度随时间变化的动态分布曲线。所建模型能较为准确的描述淮河中游颖河口至田家庵河段的污染物迁移扩散过程,对河流环境管理和环境污染治理具有一定的指导意义。
Taking the main pollution indicators NH3-N and CODMn in the Huaihe River basin as an example, the water quality of Yinghekou-Tianjiaan section of the middle reaches of the Huaihe River was simulated. Based on the measured data of sewer discharge for many years and the SMS-RMA4 two-dimensional water quality module, Yinghekou-Tianjia The two-dimensional water quality model of the An River section, and the simulation results were verified and analyzed. At the same time, a large-scale subfloor river channel (Fengtai Bridge - Pingwei Bridge section) was calculated for a specific period of pollutant, the study obtained at each juncture of the Fen River pollutant concentration changes with time dynamic distribution curve. The model can describe the process of pollutant migration and diffusion in Yinghekou-Tianjiaan section of the middle reaches of the Huaihe River well, which is of guiding significance to the river environment management and environmental pollution control.