四川某城市污水处理厂工程设计

Engineering Design of A Wastewater Treatment Plant in Sichuan Province

四川某城市污水处理厂总设计规模2.0×10^(4)m^(3)/d,现状一期已建规模1.0×10^(4)m^(3)/d,本次二期工程建设规模1.0×10^(4)m^(3)/d。污水处理厂进水主要来源为城市居民生活污水,二期工程采用“预处理+A^(2)O+二沉池+高效沉淀池+纤维转盘滤池+紫外消毒”处理工艺,介绍了工程的工艺流程,主要设计参数及运行效果等。出水水质监测指标表明,本项目出水完全满足出水完全满足GB 18918-2002《城镇污水处理厂污染物排放标准》一级A标准要求。

The total design capacity of the wastewater treatment plant in Sichuan province is 2.0×10^(4)m^(3)/d,the capacity of the first phase project is 1.0×10^(4)m^(3)/d,and the capacity of the second phase project is 1.0×10^(4)m^(3)/d.The main source of the wastewater is from city sewage,and the treatment process of“pretreatment+A^(2)O tank+the second sedimentation tank+high efficient sedimentation tank+fiber rotary filter+ultraviolet disinfection”is designed in the second phase.The process flow,design parameters and operation effect of the project were introduced.The effluent monitoring index showed that the project meets the requirement of level A grade 1 in GB 18918-2002 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant.