WEIHai-juan.Design of a Large Underground Wastewater Treatment Plant and Its Operation Performance Analysis[J].China Water & Wastewater,2024,40(8):60-65.
大型地下式污水处理厂工艺设计与运行效果分析
- Title:
- Design of a Large Underground Wastewater Treatment Plant and Its Operation Performance Analysis
- 摘要:
- 上海白龙港污水处理厂新增一座规模为50×104 m3/d的地下式污水处理设施，设计采用预处理+AAO+高效沉淀池+滤布滤池工艺，设计出水水质执行《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准。2021年的实际运行数据表明，设计工艺对进水污染物的季节性波动呈现出较好的承受能力，各项污染物指标去除率均高于设计值，出水水质稳定，均优于一级A标准。基于物质流分析对主要处理单元的污染物去除能力进行评估，结果表明，预处理和生物处理阶段对污染物的去除率均能达到设计值。
- Abstract:
- A new underground wastewater treatment facility with a designed capacity of 50×104 m3/d was built in Bailonggang wastewater treatment plant in Shanghai. The process consists of pretreatment, AAO, high-efficiency sedimentation tank and cloth media filter, and the effluent quality is required to meet the first level A limit specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The actual operation data in 2021 showed that the process demonstrated a good ability to withstand the seasonal fluctuations of influent pollutants, the removal rate of each pollutant was higher than the design value, and the effluent quality was always better than the first level A limit specified in the discharge standard. The assessment results of pollutant removal capacity of the main treatment units based on mass flow analysis showed that the removal rates of pollutants in pretreatment and biological treatment stage all reached the design values.
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