Countermeasures and Practice of Pollution Sources Investigation and Analysis for River-System Remediation Projects
Water system governance projects often have complex on-site conditions and high research difficulty.Pollution source analysis,as the most crucial link in the early stage of this type of project,can provide the most direct and effective basis for the implementation of later projects.This paper takes the preliminary research process of a water system treatment project in the south as an example to elaborate on the technical route and working methods in pollution source analysis countermeasures,as well as how to analyze the quantitative indices of various types of pollution using pollution load estimation as the standard.In order to clarify the overall distribution of pollution sources in the target water system,this pollution source investigation adopts the methods of on-site preliminary survey,on-site investigation,and pollution source analysis.Through point source pollution load estimation and non-point source pollution load estimation,the total contribution rates of the four main outlets to the CODCr,ammonia nitrogen,and TP pollution of the target water system entering the river are analyzed to be 83.1%,78.4%,85.5%,respectively.Industrial non-point source pollution and rural non-point source pollution contribute to the CODCr,ammonia nitrogen,and TP pollution of the target water system entering the river are analyzed to be 75.41%,87.36%,83.36%,respectively.It proves the types of discharge and non-point source pollution that contribute significantly to the pollution of the target sub basin,providing key basis for later engineering measures.The pollution source analysis countermeasures described in this paper can provide ideas and references for similar projects in the early stage of research,and provide a more accurate basis for the later implementation of related projects.
万方数据
维普
