his project is located in Shengzhou City, Zhejiang Province. It treats hot spring wastewater and domestic sewage. The design scale is: 3000 m3/d, including 2000 m3/d of domestic sewage and 1000 m3/d of hot spring wastewater. Using the "coagulation sedimentation + A/O" treatment process, the treated effluent water quality meets the first-level standard of the "Integrated Wastewater Discharge Standard" GB8978-96. After achieving the expected treatment effect, it is discharged into the municipal sewage pipe network.