摘要
通过考察稳定塘—湿地组合生态处理系统各单元对氨氮去除速率的差异,提出了去除氨氮的最佳单元类型,分析了该单元对氨氮的主导去除机制。结果表明,在该组合生态处理系统中,水深为1.0 m左右、大量生长浮萍等水生植物及溶解氧浓度较高的水生植物塘是去除氨氮的最佳单元。在水生植物塘中,生物吸收(有机氮固定)作用是低温期去除氨氮的主导机制,同步硝化反硝化作用则是高温期去除氨氮的主导机制。
By investigating the difference of the ammonia nitrogen removal rate in different units of the stabilization pond/wetland combined treatment system, the optimal unit for ammonia nitrogen removal was put forward, and the ammonia nitrogen removal mechanism in the unit was analyzed. The results show that in the combined ecological treatment system, a 1.0 m deep hydrophyte pond with a great quantity of duckweed and a higher oxygen level is the optimal unit for ammonia nitrogen removal. In the hydrophyte pond, biological uptake and simultaneous nitrification and denitrification are the most important ammonia nitrogen removal mechanisms in cold and warm periods, respectively.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第15期62-65,共4页
China Water & Wastewater
基金
黑龙江省重大科技攻关项目(GA02C201)
关键词
氨氮
稳定塘
湿地
去除机制
ammonia nitrogen
stabilization pond
wetland
removal mechanism
