| This study selects the typical village and town drainage project in Anhui as the research object,analyzes the characteristics and existing problems of township sewage,and discusses scientific solutions suitable for the development of village and town drainage,in order to explore a model that can be used as a reference and reference for the subsequent development of drainage construction in villages and towns.The drainage system of villages and towns is an important part of the infrastructure construction of villages and towns,and the improvement of its sewage treatment facilities has played a vital role in the overall development of villages and towns.In recent years,with the revitalization of my country’s village and township economy,the population density of villages and towns has increased significantly,and the amount of sewage discharge has increased year by year.However,the level and progress of the construction of the drainage system in villages and towns at this stage are relatively lagging,which cannot meet the modernization of my country’s towns and villages.The overall progress of the construction has caused the potential risk of the deterioration of the water environment of the villages and towns.Therefore,the upgrading of the drainage system of the villages and towns is imminent.The construction of the township sewage treatment system has very important practical significance.This paper selects a typical village sewage construction project as an example.After site surveys,the analysis of the status quo of the township shows that: the drainage system is unreasonable,the relevant planning is not sound,the system is incomplete,the construction standards are low,the drainage facilities are old,and the existing pipelines are polluted by rain.Confluence pipes account for a relatively large proportion;untreated wastewater from enterprises and mixed rainwater and sewage are directly discharged into receiving water bodies frequently,and the water bodies are highly polluted.The current status of this type of drainage is related to the low level of relevant planning,the lack of centralized sewage discharge points in villages and towns,the complex terrain,the lack of corresponding sewage treatment facilities,and the failure to form a suitable sewage collection and treatment system.In order to solve the existing problems,form a suitable treatment system in villages and towns,and improve the water environment of villages and towns,this article combines the characteristics of sewage treatment in towns and villages,optimizes the drainage system,reconstructs the drainage system of villages and towns,and optimizes the sewage collection system and treatment process plan,focusing on the sewage system partition,The pipe network layout and other aspects are analyzed to determine and optimize related design parameters,so as to provide reference for related engineering design,and form conditions that are convenient for ensuring the operation and maintenance of equipment in the later period.For the pipe network project,analyze the terrain elevation data of each area,reasonably delimit the sewage confluence area and the sewage pipe network layout,form a sewage gravity flow system,and reduce the energy consumption of the drainage system.For sewage treatment projects,the site selection of treatment facilities was optimized,and the characteristics of the treatment process were analyzed,and the improved A2 O integrated equipment process was determined.After comprehensive analysis of the construction of the drainage system,the sewage collection rate and treatment rate of the township can be greatly improved,and the current drainage situation can be effectively improved,thereby effectively improving the overall water environment quality of the township. |