摘要
长江流域某污水处理厂采用A-A2/O工艺,在运行中存在TN偶然超标的现象,这主要与进水水质波动较大、C/N值有时偏低以及低温天气有关。为此,提出了关闭部分曝气装置、增设搅拌器、多点进水等解决措施。改造后,出水TN浓度大幅降低,达到了GB18918—2002的一级A标准,运行成本减少,管理更为方便。
During the operation of a WWTP using A-A^2/O process in Yangtze River basin, the elfluent TN occasionally exceeded the national standard due to large fluctuation of the influent quality, low C/N and low temperature weather. Therefore, corresponding measures of shutting down some aeration devices, adding mixers and step-feed were proposed. After the reconstruction, the effluent TN concentration is significantly reduced, achieving the class I -A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB 18918 -2002）. The operation cost is reduced, and the management is more convenient.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第4期35-37,共3页
China Water & Wastewater
基金
重庆交通大学引进人才基金项目(2006)
