摘要
在不同的水力停留时间(HRT)、温度、碳氮比(COD/N)条件下,研究了波式潜流人工湿地(W-SFCW)试验装置对水体总氮和氨氮的去除效果。通过检测W-SFCW沿程各形态氮的含量,探讨了其对氮的去除原理。结果表明,HRT、温度、COD/N分别为5d,26.8℃,5条件下总氮去除率较高,可达74.92%;此外,研究发现氨氮主要在浅水区通过硝化作用转化为NO3—N,所得的NO3—N通过深水区的反硝化作用转化为N2而得以去除。
A lot of experiences were conducted in different hydraulic retention time （HRT）, temperature and COD/N to explore the removal efficiency of TN, NH3--N in the water using the wavy subsurface construc- ted wetland（W-SFCW） test device, and to discuss the nitrogen removal principle by detecting nitrogen con- tent in various forms along the path of W-SFCW device. The results showed that total nitrogen removal rate was higher and could amount to 74.92% when HRT, temperature, COD/N were 5 d, 26.8 ℃, 5, respec tively. In addition, we found that ammonia nitrog into NO3-N, and the NO3--N was removed through en was mainly in shallow water through the nitrification the deep water denitrification into N2 in the deep water.
出处
《水土保持通报》
CSCD
北大核心
2013年第6期238-241,共4页
Bulletin of Soil and Water Conservation
基金
天津市科技创新专项(08FDZDSF03200)
水体污染污染控制与治理科技重大专项(2008ZX07314-004-002)
