| 短程硝化-反硝化生物滤池脱氮机制研究 |
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| 引用本文： | 孙迎雪,徐栋,田媛,李燕飞.短程硝化-反硝化生物滤池脱氮机制研究[J].环境科学,2012,33(10):3501-3506. |
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| 作者姓名： | 孙迎雪 徐栋 田媛 李燕飞 |
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| 作者单位： | 1. 北京工商大学食品学院环境科学与工程系,北京,100048
2. 中国市政工程西北设计研究院北京分院,北京,100037 |
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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(2008ZX07209-007); 北京市教育委员会科技计划面上项目(KM201210011004) |
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| 摘 要： | 研究了短程硝化生物滤池的调控因素以及短程硝化-反硝化生物滤池的脱氮机制.结果表明,针对城市污水处理厂二级出水中的氨氮和总氮,在水温为(30±1)℃的条件下,提高进水pH值有助于硝化生物滤池中亚硝酸盐的积累,较好地实现短程硝化过程,当进水pH值平均为8.5时,亚硝酸盐的积累达到最大.沿硝化生物滤池水流方向,pH和DO的变化呈相反趋势,亚硝酸盐的积累呈增加趋势,在反应器出水口较好地实现了亚硝酸盐的积累.短程硝化-反硝化生物滤池对NH4+-N有较好的去除效率(90%以上);当反硝化生物滤池进水COD/TN为3.0时,出水TN的浓度降低到8～9 mg.L-1的范围,去除率稳定在79%～81%.
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| 关 键 词： | 生物滤池 生物膜 生物脱氮 短程硝化 反硝化 |
| 收稿时间： | 2011/12/1 0:00:00 |
| 修稿时间： | 2012/3/11 0:00:00 |
Mechanism of Nitrogen Removal by Partial Nitrification-Denitrification Biological Filter |
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| SUN Ying-xue,XU Dong,TIAN Yuan and LI Yan-fei.Mechanism of Nitrogen Removal by Partial Nitrification-Denitrification Biological Filter[J].Chinese Journal of Environmental Science,2012,33(10):3501-3506. |
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| Authors: | SUN Ying-xue XU Dong TIAN Yuan and LI Yan-fei |
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| Institution: | Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China;China Northwest Municipal Engineering Design Institute Co., Ltd, Beijing 100037, China;Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China;Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China |
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| Abstract: | |
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| Keywords: | biological filter biofilm biological nitrogen removal partial nitrification denitrification |
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