MBBR工艺在吴忠市第三污水处理厂扩建工程中的应用及运行效果

以宁夏回族自治区吴忠市第三污水处理厂扩建工程为案例，探讨和验证了MBBR工艺的应用效果。该扩建工程设计规模为3×10⁴m³·d⁻¹，采用“MBBR+沉淀+滤布滤池处理”组合工艺，尾水采用次氯酸钠消毒，出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准。该扩建工程建成运行后，进行了运行模式的实际运行数据分析。结果表明，扩建工程设计中所采用的工艺流程适当，主要构筑物参数合理，达到了预期设计要求。

Application and performance of MBBR process of No.3 Sewage Treatment Plant expansion project in Wuzhong city,China

The application effect of MBBR process is discussed and verified based on the case study in the No.3 Sewage Disposal Plant in Wuzhong city, Ningxia. The design scale of the expansion project is 3×104 m3·d−1. The combined process of MBBR+ precipitation + filter cloth treatment tank is adopted, the tail water is disinfected with sodium hypochlorite, and the effluent quality met the Class 1A level by the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). After the operation of the expansion project, the analysis of the operation mode based on the operational data is carried out. Results show that the technological process adopted in the design of the expansion project is appropriate, the main structure parameters are reasonable, and the expected design requirements are met.