Research on Dynamic Characteristics of River Pollution Degradation Coefficient in the Main Stream of Weihe River

Abstract

In order to reveal the influence of different hydrological conditions and dynamic changes of pollution sources on the degradation coefficient of pollutants, this study took the main stream section of the Weihe River as the research object to analyze and study the dynamic characteristics of the degradation coefficient of pollutants in the river. Taking the dry year as the representative hydrological year, according to the measured data of each section of the Weihe River, the parameter estimation method based on Matlab regression analysis was used to calculate the comprehensive degradation coefficients of CODcr and NH3-N under different hydrological conditions in each section. The simulation verifies and verifies the calculation results. The results show that different comprehensive degradation coefficients of pollutants under different hydrological conditions are more in line with the actual situation of river pollutant degradation.