GUANYong-nian.Biological Aerated Filter, High Efficiency Sedimentation Tank and V-type Filter for Upgrading and Reconstruction of a High Discharge Standard Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(14):66-70.
BAF+ 高效沉淀池+V型滤池用于污水厂高标准提标改造
- Title:
- Biological Aerated Filter, High Efficiency Sedimentation Tank and V-type Filter for Upgrading and Reconstruction of a High Discharge Standard Wastewater Treatment Plant
- 摘要:
- 苏州工业园区某污水处理厂处理规模为20×104 m3/d，设计采用改良型AAO+滤布滤池+紫外线消毒处理工艺，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。为达到苏州市政府提出的出水水质提升至地表水准Ⅳ类标准的要求，在提标改造工程中采用了BAF（DN型+CN型）+高效沉淀池+V型滤池+紫外线与次氯酸钠联合消毒的深度处理工艺，以强化对COD、NH3-N、TN、TP和SS的去除，同时保障尾水的消毒效果。实际运行表明，工程运行状况良好，出水水质能够稳定达标
- Abstract:
- The treatment scale of a wastewater treatment plant in Suzhou industrial park is 20×104 m3/d. The process consists of modified AAO, textile filter and UV disinfection process, and the effluent quality is required to meet the first level A limit specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). To meet the requirements of upgrading the effluent quality to surface water quasi class Ⅳ standard proposed by Suzhou government, the advanced treatment process of biological aerated filter (DN type and CN type), high efficiency sedimentation tank, V-type filter and UV combined with sodium hypochlorite disinfection is adopted in the upgrading project to enhance the removal of COD, NH3-N, TN, TP and SS and ensure the disinfection performance of tail water. The actual operation shows that the project is in good condition and the effluent quality stably meets the discharge standard.
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