Research On Special Treatment Of Drainage Engineering In Economic Development Zone Of Xiangtan City

The special project of drainage engineering mainly includes the planning of rainwater system and the planning of sewage system.It is an important basis for the construction of urban infrastructure and ensuring the normal operation of urban rain and sewage systems.In the early part of this study,we carried out a dynamic analysis of the actual situation of rainwater and sewage pipe network development in Xiangtan Economic Development Zone and research progress at home and abroad,and carried out the basic work of understanding the relevant regional locations,urban profiles,and natural conditions of Xiangtan Economic Development Zone drainage project planning.The paper combines the classification and actual conditions of the drainage system in Economic Development Zone,and analyzes the existing drainage project construction status and the actual status of rainwater and sewage pipe networks.Through the analysis of the environmental protection,investment cost,maintenance management,land use planning,etc.The determination of the system system carried out a comprehensive analysis and comparison of the types of selection,and proposed the use of rain and sewage diversion system in the open area to carry out the transformation of the drainage system,mainly including the confluence of some areas,the treatment of the sewage body in the area and the comprehensive reform of the rainwater system.Through the water quality analysis of COD,total nitrogen,total phosphorus,ammonia nitrogen,suspended matter,etc.in the representative water samples in Shuangqing Canal,the engineering measures required for the treatment of the points in the water samples were obtained(truncated foreign pollution,artificial Oxygenation,replenishment to improve hydraulic conditions,buried integrated treatment facilities,ecological purification,chemical reagent treatment)and non-engineering measures(restructuring and publicity),mainly engineering measures.In the engineering measures,the extermination of external pollution was carried out by diverting the rain and sewage into the sewage pipe network.In the manual oxygenation measures,15 submersible powerful aeration aerators and 20 Yongquan surface aerators were used.11 floating fountain aerators;2 buried,integrated treatment facilities;15 t MgO doses.The transformation of the rainwater system in the Economic Development Zone is mainly through the dredging and dredging of channels,and the optimization and transformation of the channels,and the communication of Geely Artificial Lake,Jiuhua Lake and Xinglong Lake,as well as the water systems of the Shuangqing Canal,Fengshui Canal,and Xiangjiang Suihong Canal.Quickly drain and adjust.The Shuangqing Canal Water System in the Economic Development Zone includes the three channels of Zhengguang Canal,Shuangqing Canal,and Fengshou Canal,both of which are discharged through the Shuangqing Pumping Station,and the Xiangjiang Peihong Canal is discharged through the Panshigang Pumping Station.The adoption of rainwater system renovation measures in the open area and the use of low-impact development technology and the concept of sponge city construction have enabled rainwater resources to be effectively recycled in the Economic Development Zone and have achieved good project benefits.