| 生物蛭石污水处理过程中氮的形态变化研究 |
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| 引用本文： | 董敏慧,吴晓芙,胡曰利,黄忠良,游小敏.生物蛭石污水处理过程中氮的形态变化研究[J].生态环境,2006,15(6):1142-1145. |
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| 作者姓名： | 董敏慧 吴晓芙 胡曰利 黄忠良 游小敏 |
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| 作者单位： | 中南林业科技大学环境工程研究所,湖南,长沙,410004 |
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| 基金项目： | 湖南省教育厅科技推广项目(湘教发2003-101) |
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| 摘 要： | 为了探索天然蛭石作为湿地基质强化湿地脱氮效果的可行性,将天然蛭石填充有机玻璃,用废水培养挂膜获得生物蛭石,用以去除模拟污水中的氮。试验结果表明:生物蛭石柱对NH4 -N和T-N去除效果显著且稳定。生物蛭石滤柱中是以厌氧氨氧化作用为主的脱氮作用,溶解氧是影响厌氧氨氧化作用的重要因素。
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| 关 键 词： | 脱氮 厌氧氨氧化 蛭石 人工湿地 |
| 文章编号： | 1672-2175（2006）06-1142-04 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006年5月22日 |
Changes in nitrogen forms in the process of municipal sewage treatment using bio-vermiculite as adsorbents |
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| DONG Minhui,WU Xiaofu,HU Yueli,HUANG Zhongliang,YOU Xiaomin.Changes in nitrogen forms in the process of municipal sewage treatment using bio-vermiculite as adsorbents[J].Ecology and Environmnet,2006,15(6):1142-1145. |
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| Authors: | DONG Minhui WU Xiaofu HU Yueli HUANG Zhongliang YOU Xiaomin |
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| Institution: | Institute of Environmetal Engineering, Central South Forestry University, Changsha 410004, China |
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| Abstract: | Experiments were conducted to investigate the feasibility to use natural vermiculite as fillers in constructed wetlands to enhance the removal rate of N from municple sewage. Bio-films on vermiculite granules in glass service were formed in the pre-treatment with stable wastewater influent. The results indicated that the removal rate of both NH4 -N and T-N in the bio-vermiculite system was significantly higher than that in the control and the effect was stable. Changes in N forms were observed, indicating that the removal of N was an anaerobic ammonia oxidation process. The nitrification intensity of bio-vermiculite was apparently affected by the concentration of dissolved oxygen. |
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| Keywords: | nitrogen removal anaerobic ammonia oxidation vermiculite constructed wetlands |
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