泉州市北峰污水处理厂提标工程设计实例

Design Case of Upgrading Reconstruction of Quanzhou Beifeng Waste-water Treatment Plant

针对泉州市北峰污水处理厂出水水质偏低的现状和河道的水环境保护要求,对一期工程(4.5万m3/d)进行提标改造。通过对污水处理厂实际进水水质的分析,优化一期工程CAST曝气时间,深度处理工艺选用高效沉淀池、反硝化深床滤池。实际运行结果表明,通过提标改造后,工程出水水质可达到类Ⅳ类地表水水质标准,具有良好的经济效益和环境效益。

In view of the low effluent quality of Quanzhou Beifeng Waste-water Treatment Plant and the requirements of river water environment protection,the first-stage project(45000 m3/d)was improved.Through the analysis of the actual influent water quality of the sewage treatment plant,the aeration time of CAST in the first-stage project is optimized,and the high efficiency sedimentation tank and denitrification deep-bed filter are selected for the advanced treatment process.The actual operation results show that the effluent quality of the project can reach the class IV surface water quality standard after upgrading,which has good economic and environmental benefits.