| 长江流域某污水处理厂的工艺改造 |
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| 引用本文： | 雷晓玲,刘贤斌,叶方剑. 长江流域某污水处理厂的工艺改造[J]. 中国给水排水, 2010, 26(4) |
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| 作者姓名： | 雷晓玲 刘贤斌 叶方剑 |
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| 作者单位： | 1. 重庆交通大学河海学院,重庆,400074
2. 中国市政工程中南设计研究院,湖北武汉,430010 |
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| 基金项目： | 重庆交通大学引进人才基金项目 |
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| 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。
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| 关 键 词： | 污水处理厂 低温、低C/N值 TN去除 工艺改造 |
Process Reconstruction of a WWTP in Yangtze River Basin |
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| LEI Xiao-ling,LIU Xian-bin,YE Fang-jian. Process Reconstruction of a WWTP in Yangtze River Basin[J]. China Water & Wastewater, 2010, 26(4) |
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| Authors: | LEI Xiao-ling LIU Xian-bin YE Fang-jian |
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| Affiliation: | LEI Xiao-ling1,LIU Xian-bin2,YE Fang-jian1(1.School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China,2.Central and Southern China Municipal Engineering Design and Research Institute,Wuhan 430010,China) |
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| Abstract: | During the operation of a WWTP using A-A~2/O process in Yangtze River basin, the effluent 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. |
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| Keywords: | WWTP low temperature and low C/N TN removal process reconstruction |
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