YANG Qing,GUO Shu-qin,CHEN Wei-nan.Design of Relocation of Tianjin Xianyanglu Sewage Treatment Plant Upgraded to Quasi-Ⅳ Standard[J].China Water & Wastewater,2021,37(12):88-92.
准Ⅳ类出水标准下天津咸阳路污水处理厂的迁建提标设计
- Title:
- Design of Relocation of Tianjin Xianyanglu Sewage Treatment Plant Upgraded to Quasi-Ⅳ Standard
- 摘要:
- 天津咸阳路污水处理厂迁建提标一期工程处理规模为45×104 m3/d，再生水一期规模为5×104 m3/d，出水水质达到天津市地方标准《城镇污水处理厂污染物排放标准》（DB 12/599—2015）中的A标准。污水处理主要工艺为：速沉池+多级AO反应池+二沉池+反硝化滤池+高效澄清池+V型滤池+臭氧催化氧化+紫外线消毒。经过近期的调试运行，污水处理厂出水各项指标均优于设计标准。运行过程中，当污水量有较大增长时，处理效果良好，体现出了良好的抗冲击负荷能力；多级AO工艺在运行中表现出了较高的去除有机物和脱氮效率；高效沉淀池+V型滤池工艺对出水TP 和SS达标有很好的保障。后续可根据进水水质水量的实际情况灵活调整运行方式，在出水达标的情况下，减少运行费用。
- Abstract:
- Treatment capacity of Tianjin Xianyanglu sewage treatment plant in the first phase relocation and upgrading project is 45×104 m3/d, and treatment capacity of the recycled water plant of the first phase is 5×104 m3/d, in which the effluent is required to meet class A limitations of Tianjin local Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (DB 12/599-2015). The main process of sewage treatment consists of rapid sedimentation tank, multi-stage AO reaction tank, secondary sedimentation tank, denitrification filter, high-efficiency sedimentation tank, V-shaped filter, ozone catalytic oxidation and UV disinfection. After the recent commissioning, effluent indices of the sewage treatment plant were better than those in the design standard. In the process of operation, when the amount of sewage increased greatly, good treatment performance was achieved, reflecting a good impact resistance load capacity of the process. The multi-stage AO process showed high organic matter removal and nitrogen removal efficiency in the operation. The high-efficiency sedimentation tank and V-shaped filter process could ensure that TP and SS in the effluent meet the discharge standard. The operation mode could be adjusted flexibly according to the actual situation of the water quality and quantity of the influent in the subsequent operation, so as to reduce the operation cost on the premise of the effluent water quality meeting the discharge standard.
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