LU Ru,JU Zhi jian,DU Qiong.Upgrading and Reconstruction Project Design of Wastewater Treatment Plant with A/O Process[J].China Water & Wastewater,2018,34(20):56-59.
采用A/O工艺的污水处理厂提标改造工程设计
- Title:
- Upgrading and Reconstruction Project Design of Wastewater Treatment Plant with A/O Process
- 文章编号:
- 1000-4602(2018)20-0056-04
- 分类号:
- TU992.3
- 文献标志码:
- C
- 摘要:
- 辽宁省某污水处理厂设计规模为10×104 m3/d，采用A/O处理工艺。升级改造工程要求设计出水水质从《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级B标准提升至一级A标准。针对出水总氮超标问题，增设一组A/O生化池，以降低脱氮负荷，同时增设碳源投加系统，从而保证了脱氮效率；针对进水含砂量大，导致粗、细格栅和提升水泵等机械设备磨损严重的问题，提标改造中增设了粗格栅及平流沉砂池，使进水中的砂在平流沉砂池内预沉，同时去除大颗粒漂浮物，从而保证了粗、细格栅及提升泵的正常运行。实际运行表明，提标改造工程出水水质完全达到一级A标准。
- Abstract:
- A/O process was adopted in a wastewater treatment plant with capacity of 10×104 m3/d in Liaoning Province. The effluent quality of reconstruction project was required to be upgraded from the first level B standard to the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). Denitrifying load would be lowered by construction of a new A/O biochemical tank, and nitrogen removal efficiency would be ensured by supplement of carbon source. The inlet water contained a lot of grit which led to serious wear of mechanical equipment such as coarse screen, fine rack and lift pumps. The grit and large particles of floatation in water would be settled by usage of the coarse screen and the horizontal flow grid chamber. As a result, the coarse screen, fine rack and lift pumps would operate normally. Actual operation showed the effluent quality could meet the first level A standard.
参考文献/References:
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备注/Memo
作者简介：卢如（1987-），女，江西丰城人，硕士，工程师，主要从事市政给排水处理研究。
E-mail:303632669@qq.com
收稿日期：2018-04-18