This project is the municipal domestic sewage treatment project of Dongfan Village, Gaoling District, Xi'an City. The sewage source is the domestic sewage of residents in the village, and the design water volume is 800m ³/d. Targeted sewage treatment process is adopted for the Project, and the effluent quality strictly meets Class A discharge standard in Discharge Standard of Pollutants for Municipal Sewage Treatment Plant (GB18918-2002). The treated sewage is finally discharged into Lingyu Trunk Ditch to effectively improve the regional water environment quality and guarantee the surrounding ecological environment and living environment of residents.

Grate collecting tank+regulating tank+A²/O+flocculation sedimentation+filter cloth and filter tank+UV disinfection

It mainly solves the collection and up-to-standard treatment of domestic sewage from residents in Dongfan Village, Gaoling District, Xi'an City. Through a complete treatment process system, the organic pollutants, nitrogen and phosphorus impurities in the domestic sewage are effectively removed, so as to ensure that the sewage is discharged into the main rain ditch up to the standard, reduce the pollution of domestic sewage to surrounding water bodies, improve the regional water ecological environment, and assist the rural and municipal environmental protection construction.

The process combination is scientific and reasonable, and the multi-level treatment mode of "A ²/O+flocculation sedimentation+filter cloth tank" is adopted. The A ²/O process efficiently degrades the core pollutants such as COD, BOD, nitrogen and phosphorus in the domestic sewage. The flocculation sedimentation+filter cloth tank further purifies the water quality, and the UV disinfection process is used to safely and efficiently kill the pathogenic bacteria in the water, so as to comprehensively ensure that the effluent reaches the Grade A high standard.

It accurately meets the requirements of village-level municipal domestic sewage treatment. The design water volume of 800m ³/d is consistent with the domestic sewage discharge of residents in Dongfan Village. The process flow is smoothly connected, the treatment efficiency is high, and the environmental protection standard and practicability are taken into consideration.

Upon the implementation of the Project, the domestic sewage will be discharged into Lingyu Trunk Ditch after standard treatment, so as to effectively reduce the load of water pollutants, improve the regional water environment quality, help the local municipal environmental treatment and improve the living quality of residents.