| 蚯蚓生态滤池对生活污水中氮的去除作用 |
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| 引用本文： | 方彩霞,罗兴章,郭飞宏,郑正,李喆钦. 蚯蚓生态滤池对生活污水中氮的去除作用[J]. 环境科学, 2010, 31(2): 352-356 |
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| 作者姓名： | 方彩霞 罗兴章 郭飞宏 郑正 李喆钦 |
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| 作者单位： | 南京大学环境学院污染控制与资源化研究国家重点实验室; |
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| 基金项目： | 江苏省太湖水专项(BS2007148);;水利部公益性行业科研专项(200801028);;国家水体污染控制与治理科技重大专项(2008ZX07101-004) |
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| 摘 要： | 研究了单级蚯蚓生态滤池对生活污水中不同形态氮的去除效果,并对其机制进行了探讨.结果表明,处理前进水总氮以氨氮为主,占83.88%,出水总氮以硝态氮为主,占76.46%,氮素的形态在处理前后发生了很大的改变;系统对总氮和氨氮的平均去除率分别为28.08%和90.44%,硝态氮大量积累,亚硝态氮少量积累;系统硝化作用强,反硝化作用受到抑制,总体脱氮能力较差,可采取提高湿干比、改进滤池构造、多级滤池串联、后接人工湿地和提高进水碳氮比等手段强化反硝化,以提高滤池总氮的去除效果.
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| 关 键 词： | 蚯蚓生态滤池 农村生活污水 氮形态 去除效果 |
| 收稿时间： | 2009-03-12 |
| 修稿时间： | 2009-06-22 |
Nitrogen Removal in Earthworm Ecofilter Treating Domestic Wastewater |
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| FANG Cai-xi,LUO Xing-zhang,GUO Fei-hong,ZHENG Zheng and LI Zhe-qin. Nitrogen Removal in Earthworm Ecofilter Treating Domestic Wastewater[J]. Chinese Journal of Environmental Science, 2010, 31(2): 352-356 |
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| Authors: | FANG Cai-xi LUO Xing-zhang GUO Fei-hong ZHENG Zheng LI Zhe-qin |
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| Affiliation: | State Key Laboratory of Pollution Control and Resource Reuse;School of Environment;Nanjing University;Nanjing 210093;China |
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| Abstract: | The removal efficiency of different forms of nitrogen was studied in earthworm ecofilter treating domestic wastewater,and the mechanisms were discussed.Results indicated that,the major form of total nitrogen(TN) in influent water and effluent water were existed as ammonia-nitrogen(NH~+_4-N) and nitrate-nitrogen(NO~-_3-N), respectively.NH~+_4-N /TN in influent water and NO~-_3-N /TN in effluent water were 83.88% and 76.46%,respectively,NH~+_4-N decreased and NO~-_3-N increased during the process.The average ... |
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| Keywords: | earthworm ecofilter domestic wastewater in rural areas nitrogen forms purification performance |
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