潜流式人工湿地污水处理系统硝化能力研究 |
摘要点击 2614 全文点击 3303 投稿时间:2002-02-26 修订日期:2002-05-13 |
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中文关键词 潜流式人工湿地 生活污水 硝化能力 氨氮 |
英文关键词 subsurface constructed wetland sewage nitrification ability ammonia nitrogen |
DOI 10.13227/j.hjkx.20030113 |
作者 | 单位 | 刘超翔 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 | 董春宏 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 | 李峰民 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 | 胡洪营 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 | 黄霞 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 | 施汉昌 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 | 钱易 | 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 |
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中文摘要 |
研究了潜流式人工湿地内部不同填料层和沿水流方向硝化能力的变化.结果表明:潜流式人工湿地中,硝化能力沿水流方向逐渐减小.底部填料层,即炉渣层的氨氧化速率常数和亚硝酸氧化速率常数分别为1.99~6.89mg·(h·kg)-1和1.44~5.22mg(h·kg)-1,而床体上部土壤层的氨氧化速率常数和亚硝酸氧化速率常数分别为0.53~0.89mg·(h·kg)-1和0.96~1.39mg·(h·kg)-1.因此炉渣层的硝化能力要明显高于土壤层,底部炉渣层在硝化过程中起主要作用. |
英文摘要 |
The nitrification ability of different layers in a subsurface constructed wetland treating sewage was measured . The experiment results showed that the ability of nitrification was decreased along the direction of water flow in the subsurface wetland.The constants of ammonia oxidation rate and nitrite oxidation rate in the slag layer on the botton were 1.99~6.89mg·(h·kg)-1 and 1.14~5.22mg·(h·kg)-1 respectively,but in the soil layer on the top were 0.53~0.89mg·(h·kg)-1 and 0.96~1.39mg·(h·kg)-1 respectively.So the ability of nitrification in the layer of slag was better than the layer of soil obviously,and it showed that the nitrification was mainly happened in the slag layer. |
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