Simulation Study On Water Quality Of Fuyang River Based On WASP

Fuyang River belongs to the Haihe River of Ziya River system in Handan,it is one of the main water source,but also an important lifeline of social livelihood and economic development.However,in recent years,with the rapid growth of population and the rapid development of industry in Handan,the serious pollution of Fuyang River and the decrease of river flow have seriously affected the daily life and economic development of coastal residents.In this paper,the river basin of Fuyang River in Handan area was taken as the research object.the Fuyang River water quality of the river basin was analyzed through the data of nine sections of Fuyang River,river hydrological conditions and other information of Fuyang River in Handan.Principal component analysis and factor analysis were used to evaluate water quality.The principal component analysis was used to standardize the cross-section monitoring data,and the standardized monitoring data was obtained by using the factor analysis method to describe,extract,rotate,score and select the data.Using the data obtained to evaluate the quality of water environment in monitoring section.We used the Water Quality Analysis Simulation Program(WASP),a water quality simulation software developed by the US Environmental Protection Agency(EPA),in conjunction with the topography,water conservancy and hydrological conditions of the Fuyang River in Handan to conduct major pollutants Simulation studies and analysis of the distribution of pollutants and distribution characteristics,and further study of pollution causes.The main conclusions are as follows:(1)In this paper,8 estuaries such as Nanliuwang,Dongwushi Reservoir,Mubi,Zhangzhuang Bridge,Qinhe Sucao Station,Beisuli of Handan,Lianhuakou and South Canal of Quzhou in Fuyang River areas were chosen as monitoring sections.The principal component analysis and evaluation of eight water quality indicators of total nitrogen,total phosphorus,dissolved oxygen,ammonia nitrogen,nitrate nitrogen,nitrite nitrogen,permanganate index,COD were taken and the evaluation results were obtained in turn.According to the treatment results of the 8 stations’ water quality data,the water quality of Fuyang River is mainly related to total phosphorus,total nitrogen,ammonia nitrogen,permanganate index,nitrate nitrogen and COD.Among them,the proportion of total phosphorus,total nitrogen,ammonia nitrogen and COD is relatively large,so it can be preliminarily determined that the water quality is seriously polluted by organic pollutants.(2)We used the WASP water quality model to monitor the water quality of the Nanliuwang of Fuyang River,Dongwushi Reservoir,Mubi,Zhangzhuang Bridge,East Sewage Plant,Qinhe Sucao Station,Beisuli of Handan,Lianhuakou,South Canal of Quzhou,etc.9 Sections to conduct simulation study.Based on the measured data of nine sections,the model was used to simulate the two indicators of ammonia nitrogen and COD in the major pollutants of each section in both time and space directions.Through the analysis of model results we can see: The direct cause of the water pollution in Fuyang River is the massive discharge of industrial wastewater and domestic sewage along the coast;The dry climate in the Fuyang River basin and the decrease of river flow are the objective reasons for the water pollution in the Fuyang River.The heavy water use in industry and agriculture is also the main reason for the water pollution in Fuyang River.Through the principal component analysis and analysis of the Results of WASP Model on the Water Quality,the spatial and temporal variation of water pollution in the area and the causes of pollution were evaluated and analyzed,which provides research methods and basis for the pollution control of Fuyang River,also provide a reference for the use and development of Fuyang River.