摘要
为分析毛河流域水环境容量,研究了解四川省眉山市毛河流域水质的具体情况。通过调查当地雨量站彭山站2001~2021年的降雨量数据以及2018~2021年毛河水质监测数据获得计算所需水文水质数据,采用MIKE11建立了毛河流域一维非稳态水动力水质数学模型,构建基于MIKE11模拟水文与水质数据用于计算水环境容量的动态模型,在设计水文条件下逐月进行水环境容量进行计算。计算得到毛河流域水环境总容量为COD 878.0 t/a、氨氮86.3 t/a、总磷22.2 t/a。模型模拟得到毛河流域的水质情况,对流域的水污染治理和制定未来水环境保护措施提供依据,用以减少污水排放对毛河的污染。
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.
作者
王啸天
逄勇
吴昌淦
柴霁森
WANG Xiao-tian;PANG Yong;WU Chang-gan;CHAI Ji-sen(College of Environment,Hohai University,Nanjing 210098,China;Hohai University Key Laboratory of Integrated Regulation&Resource Development on Shallow Lakes,Ministry of Education,Nanjing 210098,China)
出处
《四川环境》
2024年第1期42-51,共10页
Sichuan Environment
关键词
水环境容量
一维非稳态模型
毛河
水环境保护
Environment capacity of water
one-dimensional unsteady model
Maohe River
water environment protection
