cities and towns, and the unmanaged domestic sewage flows directly into the nearby waters, leading to river pollution.Combined with the actua
l situation and design requirements of the town, through the process analysis and comparison of several urban sewage plants, the main process of sewage treatment is determined as
A
2
/O process. The specific process flow is as follows: sewage →
pretreatment (fine grid) → A
2
/O
biochemical tank → secondary sedimentation tank → ultraviolet disinfection
洮南市某镇300m3d污水处理工程设计-10033字.docx