| CAST工艺常规模式下脱氮性能研究 |
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| 引用本文： | 张磊,王少坡,李玉友,于静洁,刘艳辉,孙力平.CAST工艺常规模式下脱氮性能研究[J].环境工程学报,2010,4(12):2683-2686. |
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| 作者姓名： | 张磊 王少坡 李玉友 于静洁 刘艳辉 孙力平 |
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| 作者单位： | 1.天津城市建设学院环境与市政工程系，天津 300384；2.天津市水质科学与技术重点实验室，天津 300384；3.水质科学与技术联合实验室，天津 300384,1.天津城市建设学院环境与市政工程系，天津 300384；2.天津市水质科学与技术重点实验室，天津 300384；3.水质科学与技术联合实验室，天津 300384,1.天津城市建设学院环境与市政工程系，天津 300384；2.天津市水质科学与技术重点实验室，天津 300384；3.水质科学与技术联合实验室，天津 300384,1.天津城市建设学院环境与市政工程系，天津 300384；2.天津市水质科学与技术重点实验室，天津 300384；3.水质科学与技术联合实验室，天津 300384,1.天津城市建设学院环境与市政工程系，天津 300384；2.天津市水质科学与技术重点实验室，天津 300384；3.水质科学与技术联合实验室，天津 300384,1.天津城市建设学院环境与市政工程系，天津 300384；2.天津市水质科学与技术重点实验室，天津 300384；3.水质科学与技术联合实验室，天津 300384 |
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| 基金项目： | 国家自然科学基金资助项目（50808128）;国家水体污染控制与治理科技重大专项(2008ZX07314);中国博士后科学基金资助项目（20090460182） |
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| 摘 要： | 研究了有效容积为21.6 L的循环式活性污泥法反应器在常规模式下,处理模拟废水时,有机污染物和氮污染物的去除情况,并分析了反应器脱氮过程中的限制性因素。结果表明,在反应器的运行周期为4 h(进水曝气2 h,沉淀和排水各1 h)好氧区DO2 mg/L,污泥浓度MLSS稳定在4 000 mg/L时,污泥回流比为20%,COD和氨氮的去除率可达90%。对一个典型周期进行监测分析,氨氮去除彻底,出水主要是硝态氮,总氮去除率约为69%。静态试验测得氨氮氧化速率为8.0 mg NH4+-N/(g MLSS.h),硝态氮生成速率为3.3 mg NO3--N/(g MLSS.h)。从实验结果可以分析出,在上面运行条件下CAST工艺脱氮限制性因素是回流比和污泥龄。
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| 关 键 词： | 生物脱氮 循环式活性污泥法 硝化 反硝化 城市污水 |
| 修稿时间： | 3/1/2010 12:00:00 AM |
Study on nitrogen removal performance in conventional mode of CAST process |
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| Zhang Lei,Wang Shaopo,Li Yuyou,Yu Jingjie,Liu Yanhui and Sun Liping.Study on nitrogen removal performance in conventional mode of CAST process[J].Techniques and Equipment for Environmental Pollution Control,2010,4(12):2683-2686. |
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| Authors: | Zhang Lei Wang Shaopo Li Yuyou Yu Jingjie Liu Yanhui and Sun Liping |
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| Institution: | 1.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Key Laboratory of Water Quality Science and Technology,Tianjin 300384,China;3.Joint Laboratory of Water Quality Science and Technology,Tianjin 300384,China,1.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Key Laboratory of Water Quality Science and Technology,Tianjin 300384,China;3.Joint Laboratory of Water Quality Science and Technology,Tianjin 300384,China,1.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Key Laboratory of Water Quality Science and Technology,Tianjin 300384,China;3.Joint Laboratory of Water Quality Science and Technology,Tianjin 300384,China,1.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Key Laboratory of Water Quality Science and Technology,Tianjin 300384,China;3.Joint Laboratory of Water Quality Science and Technology,Tianjin 300384,China,1.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Key Laboratory of Water Quality Science and Technology,Tianjin 300384,China;3.Joint Laboratory of Water Quality Science and Technology,Tianjin 300384,China and 1.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Key Laboratory of Water Quality Science and Technology,Tianjin 300384,China;3.Joint Laboratory of Water Quality Science and Technology,Tianjin 300384,China |
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