Pollution Analysis And Comprehensive Treatment Of Heng Gou River In Yangzhou

When the pollutant discharged into the water body exceeds the background content of the pollutant,the original ecosystem and self-purification function of the water body are irreversibly destroyed,which is called water pollution.Due to the acceleration of my country's urbanization process and the development of industrialization,the discharge of various types of domestic sewage and industrial wastewater in the city and its surrounding areas has increased sharply.At the same time,the lack of existing urban infrastructure and the lagging of various water pollution control and treatment measures have led to a large number of Domestic and industrial polluted water is directly discharged into the natural water system without treatment,and internal source pollution,etc.,make the water body black and smelly.This article analyzes the sources of water pollution,briefly describes the causes and evaluation systems of black and odorous waters,proposes the background and significance of the subject research,and summarizes the comprehensive water treatment technologies by reviewing the research progress of comprehensive water treatment at home and abroad.Taking the Henggou River in Yangzhou City as an example,this article first investigated the current pollution sources and pollution types of the black and smelly rivers,and carried out black and smelly classification judgments.Based on this,in-depth research and proposed comprehensive special treatment of the Henggou River Basin Program.It is clear that simple technologies such as interception,dredging,and water change cannot completely eliminate black and odorous water bodies,and comprehensive treatment is the fundamental.According to the capacity and carrying capacity of the water environment,this article aims at the main problems existing in the Henggou River,from the perspective of restoration of the water body's ecosystem and self-purification capabilities,targeted selection and optimization of combined technologies and measures,to the Henggou River Water quality is treated.According to the analysis,the Henggou River black and odor control is mainly aimed at four directions:source control and pollution interception,endogenous treatment,living water quality preservation,and ecological restoration.At present,the Henggou River has completed all the reconstruction tasks at the end of 2019.After more than half a year of water environment monitoring,the water environment quality of the river has been greatly improved,and the comprehensive treatment effect has begun to show.The research results of this article provide technical support for the comprehensive treatment of similar black and odorous water bodies,and have a reference role for the improvement of urban black and odorous water quality.