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ANALYSIS OF NITROGEN REMOVAL MECHANISM AND INFLUENCE FACTORS IN INTEGRATED VERTICAL FLOW CONSTRUCTED WETLAND
Author(s): 
Pages: 36-40
Year: Issue:  5
Journal: Environmental Engineering

Keyword:  复合垂直流人工湿地 农村生活污水 脱氮机理 影响因素;
Abstract: 采用沸石和砾石作为填料,研究复合垂直流人工湿地处理农村生活污水的脱氮机理。试验结果表明:复合垂直流人工湿地对污水中氮的去除主要发生在下行流填料柱中,其去除机理主要是微生物对溶解态氮的硝化和反硝化作用;悬浮态氮沉积在填料孔隙中,会出现"氮释放"现象;水温、气水比、碳氮比、氮源形式等因素对湿地系统的脱氮效率有显著影响。
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