Study on Calculation of Environment Capacity of Water of Maohe River Basin Based on MIKE 11
In order to analyze the environment capacity of water of the Maohe River Basin,the specific water quality in the Maohe River Basin in Meishan City,Sichuan Province was studied.Hydrological and water quality data needed for calculation were obtained by investigating the rainfall data of the Pengshan Station in 2001~2021 and water quality data of the Maohe River in 2018~2021,and a one-dimensional unsteady hydrodynamic and water quality mathematical model for the Maohe River Basin was established by using MIKE11.A dynamic model based on MIKE11 simulated hydrological and water quality data was built for the calculation of environment capacity of water.The environment capacity of water was calculated on a monthly basis under designed hydrological conditions.The total environment capacity of water of the Maohe River Basin is calculated to be 878.0 t/a(COD),86.3 t/a of ammonia nitrogen,and 22.2 t/a of total phosphorus.In this model,the water quality of the Maohe River Basin was simulated,providing a basis for water pollution control in the basin and formulating measures for water environment protection in the future,to reduce the pollution of sewage to the Maohe River.
Environment capacity of waterone-dimensional unsteady modelMaohe Riverwater environment protection