| 不同曝气方式对城市重污染河道水体氮素迁移与转化的影响 |
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| 引用本文： | 刘波,王国祥,王风贺,杜旭,凌芬,夏劲.不同曝气方式对城市重污染河道水体氮素迁移与转化的影响[J].环境科学,2011,32(10):2971-2978. |
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| 作者姓名： | 刘波 王国祥 王风贺 杜旭 凌芬 夏劲 |
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| 作者单位： | 1. 南京师范大学地理科学学院,南京210046／南通大学地理科学学院,南通226007
2. 南京师范大学地理科学学院,南京,210046 |
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| 基金项目： | 江苏省科技厅科技支撑计划项目（BE2008677）；住房和城乡建设部科技项目(2010-K7-7) |
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| 摘 要： | 以南京仙林大学城的重污染河道水体为对象,利用模拟方法研究不同曝气方式（底泥曝气、水曝气）对水体氮素迁移与转化的影响.结果表明,在缺氧和温度升高条件下,底泥氮素主要以NH 4＋-N形式向上覆水释放;上覆水NH 4＋-N的最大累积量表现为：水曝气〈底泥曝气〈对照,3种工况下上覆水中NH 4＋-N的最高质量浓度分别为9.40...
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| 关 键 词： | 曝气方式 氮释放 氨挥发 底泥 硝化作用 |
| 收稿时间： | 2010/11/29 0:00:00 |
| 修稿时间： | 2011/3/30 0:00:00 |
Effect of Different Aeration Ways on Migration and Transformation of Nitrogen in Heavily Polluted Urban River |
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| LIU Bo,WANG Guo-xiang,WANG Feng-he,DU Xu,LING Fen and XIA Jin.Effect of Different Aeration Ways on Migration and Transformation of Nitrogen in Heavily Polluted Urban River[J].Chinese Journal of Environmental Science,2011,32(10):2971-2978. |
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| Authors: | LIU Bo WANG Guo-xiang WANG Feng-he DU Xu LING Fen and XIA Jin |
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| Institution: | LIU Bo1,2,WANG Guo-xiang1,WANG Feng-he1,DU Xu1,LING Fen1,XIA Jin1(1.College of Geography Science,Nanjing Normal University,Nanjing 210046,China,2.School of Geography Science,Nantong University,Nantong 226007,China) |
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| Abstract: | Water and sediment samples were collected from a heavily polluted urban river in the Xianlin University Town of Nanjing.We examined the effects of different aeration ways(aerating to sediments,aerating to water) on migration and transformation of nitrogen,using the indoor experimental method.The results showed that: nitrogen release from sediments in the form of NH+4-N that will accumulate under anaerobic conditions with increasing temperature;the maximum accumulation of NH+4-N in overlying water showed tha... |
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| Keywords: | aeration ways release of nitride ammonia volatilization sediment nitrification |
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