基于数值模拟的盐灶河口污染物治理方案

Regulating Plan of Pollutants around Yanzao Estuary Based on Numerical Simulation

本文根据盐灶河口附近的实测资料,采用MIKE21平面二维潮流数学模型与污染物扩散模型对三亚盐灶河口及近岸海域水动力条件及污染物的扩散进行数值模拟研究。分析了盐灶河水动力,污染物扩散情况。结果表明,由于河道内存在持续排放及支流输送的污染源,在现有水动力条件下,污染物无法随潮流完全扩散。在采取引入海水的治理措施后,污染物在潮流和径流的共同作用下扩散,水质达到标准。

Based on real-measured data covering Yanzao Estuary,Mike212D mathematical model of tidal current and pollutant diffusion model are used to simulate hydrodynamic conditions and pollutant diffusion in the range of Yanzao Estuary and coastal waters of Sanya.The analysis results show that the pollutants cannot completely diffuse with tidal current under the existing hydrodynamic conditions due to the pollution sources continuously discharged into the river and transported from tributary.In the case,seawater serves as a new control measure,the pollutants diffuse under the joint action of tidal current and runoff,and the water quality reaches the standard.