The data of the sewage treatment plant comes from a typical case, with a recent design treatment capacity of 50,000 m³/d. The plant covers an area of 103. The project covers an area of 4 mu and was constructed in 2016. The construction does not include the external sewage interception main pipeline or the subsequent wastewater treatment plant works. The treatment plant primarily handles domestic sewage, along with a minor proportion of industrial wastewater, which must not exceed 40% of the plant's designed capacity. Industrial wastewater, after being pre-treated by individual enterprises to meet the relevant standards, is discharged uniformly into the development zone's wastewater network via the enterprises' main wastewater outlets. The wastewater treatment adopts a tertiary treatment process mainly based on the A/A/O technology, and the treated effluent is discharged in compliance with the Grade A criteria specified in the "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants" (GB18918-2002).