Analysis of future water quality in the Huangpu River, Shanghai, using developed two-dimensional mathematical models

Two-dimensional vertically averaged hydrodynamic and water quality models capable of simulating tidal rivers with very complex topography are developed, by the developed two-dimensional models, this study deals with three key measures for water quality amelioration of the Huangpu River's mainstream: interception of point pollution sources direct discharging into the Huangpu River, treatment of direct discharging non-point pollution sources in water protection zone of upstream Huangpu River, rehabilitation of the correlated Huangpu River's tributaries. It is predicted the averaged DO concentration in the river section of the Huangpu River's mainstream form Yangpu Bridge station going upstream to Mishidu station will be 5-7 mg/L after the three key measures are adopted.