GAIXin.Design of a Wastewater Treatment Plant Phase Ⅱ Upgrading and Expansion Project in Wuhu City[J].China Water & Wastewater,2023,39(14):80-84.
芜湖市某污水处理厂二期提标扩容工程设计
- Title:
- Design of a Wastewater Treatment Plant Phase Ⅱ Upgrading and Expansion Project in Wuhu City
- 关键词:
- 污水处理厂; 扩容提标; 改良Bardenpho
- 摘要:
- 芜湖市某污水处理厂现状（一期）规模10×104 m3/d，出水执行国家一级A排放标准。本次二期工程将污水厂总规模扩容至20×104 m3/d，出水水质提标至地表水准Ⅳ类标准。二期扩建采用改良Bardenpho生物反应池+磁混凝高效沉淀池+反硝化深床滤池工艺；对一期厂区现状多模式AAO反应池进行内部挖潜，投加悬浮填料，以强化硝化反硝化效果。实际运行表明，出水水质可稳定达标。本工程总投资39 737.47万元，新增单位经营成本1.47元/m3。
- Abstract:
- The current scale of a wastewater treatment plant in Wuhu City is 10×104 m3/d, and its effluent quality was required to meet the first level A limit specified in the discharge standard. In the phase Ⅱ project, the total scale of the wastewater treatment plant was expanded to 20×104 m3/d, and the effluent quality was upgraded to the quasi class Ⅳ limit specified in the surface water standard. The process consisting of modified Bardenpho biological reactor, magnetic coagulation high efficiency sedimentation tank and denitrification deep bed filter was adopted in the phase Ⅱ expansion project. The potential of the existing multi-mode AAO reactor in the phase Ⅰ project was tapped through adding suspended carriers, so as to enhance the nitrification and denitrification performance. Actual operation showed that the effluent quality met the discharge standard stably. The total investment of the project was 397.374 7 million yuan, and the unit operating cost was increased by 1.47 yuan/m3.
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