MA Li-fang,CHEN Ju-xiang,SUN Rui.A WWTP Upgrading Reconstruction Project to Meet the First Level A Discharge Standard in Karamay[J].China Water & Wastewater,2020,36(18):122-125.
克拉玛依市某污水处理厂一级A提标改造工程实例
- Title:
- A WWTP Upgrading Reconstruction Project to Meet the First Level A Discharge Standard in Karamay
- 摘要:
- 克拉玛依市某污水处理厂一期工程采用曝气生物滤池工艺,在实际运行中曝气生物滤池和反硝化生物滤池处理效果不稳定且温度较低时处理效果较差,出水SS、TP长期不达标,BOD5的不达标率为50%。提标改造工程将优化曝气生物滤池,并将一期已建的反硝化滤池用作事故池,新建一座反硝化深床滤池,将外加碳源改为醋酸钠。运行结果表明,对SS、TP和TN的平均去除率分别可以达到97.1%、91.6%和77.6%,出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。
- Abstract:
- The aerated filter and denitrification filter operated unstably in the first phase of a wastewater treatment plant in Karamay, especially the treatment effect was poor at low temperature. The effluent SS and TP were not up to the standard for a long time, and the failure rate of BOD5 removal was 50%. In the upgrading and reconstruction project, the aerated filter was optimized, the built denitrification filter of phase Ⅰ was used as sludge and sewage accident tank, and a new deep bed denitrification filter was built. In addition, the added carbon source was changed to sodium acetate. The operation results showed that the average removal rates of SS, TP and TN reached 97.1%、91.6% and 77.6% respectively, and the effluent reached the first level A criteria in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
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