| A~2/O工艺强化脱氮效果中试研究 |
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| 引用本文： | 马艳娜,王素兰,李瑞,邢传宏.A~2/O工艺强化脱氮效果中试研究[J].水处理技术,2012,38(8):80-83,87. |
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| 作者姓名： | 马艳娜 王素兰 李瑞 邢传宏 |
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| 作者单位： | 郑州大学水利与环境学院,河南郑州,450001 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项 |
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| 摘 要： | 针对郑州某一城市污水处理厂"混合型城市污水"的特征,以厂区曝气沉砂池出水作为处理对象,设计1套A2/O工艺强化脱氮中试装置。该A2/O工艺采用氧化沟作为好氧池,氧化沟对总氮和氨氮的去除具有强化作用,同时可降低硝化液回流的能耗;当进水COD、NH3-N、TN的平均质量浓度分别为513.6、22.4、34.2 mg/L时,经A2/O工艺处理后,对COD、NH3-N、TN的平均去除率分别达到了91.2%、84.4%、71.44%,出水水质达到城镇污水处理厂污染物排放标准(GB 18918-2002)一级A标准,取得了良好的污染物去除和脱氮的效果,总体出水水质相对稳定。
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| 关 键 词： | A2/O工艺 脱氮 氧化沟 |
PILOT RESEARCH OF A2/O PROCESS FOR STRENGTHEN DENITRIFICATION |
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| Ma Yanna
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Wang Sulan
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Li Rui
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Xing Chuanhong.PILOT RESEARCH OF A2/O PROCESS FOR STRENGTHEN DENITRIFICATION[J].Technology of Water Treatment,2012,38(8):80-83,87. |
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| Authors: | Ma Yanna Wang Sulan Li Rui Xing Chuanhong |
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| Affiliation: | (School of Water Conservancy and Environment Engineering,Zhengzhou University,Zhengzhou 450001,China) |
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| Abstract: | For the "mixed city sewage" feature of a city sewage treatment plant,making the drained water of aeration sink sand pool as the processing object to deal with,designed an A2/O process plant for strengthen denitrification.The A2/O process took the oxidation ditch as oxygen pool,the oxidation ditch had a strengthening function for total nitrogen and ammonia nitrogen removal,It also can reduce the energy consumption of the nitrification fluid backflow;When the average influent concentrations of COD,NH3-N and TN were 513.6 mg/L,22.4 mg/L,34.2 mg/L,After the treatment of A2/O process,the average removal rate on COD,NH3-N,TN reached 91.2%,84.4%,71.44%,respectively.The effluent met the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater plant(GB 18918-2002).It had obtained the good effect for Pollutants and Nitrogen removal,and the outlet water was relatively stable. |
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| Keywords: | A2/O process nitrogen removal oxidation ditch |
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