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Position: Home > Articles > Treatment Efficiency of Wavy Subsurface Constructed Wetland for Removal of Nitrogen Bulletin of Soil and Water Conservation 2013,33 (6) 238-241

波式潜流人工湿地对氮的去除效果研究

作  者:
郭玉章;赵楠;王晓欧;赵新华
单  位:
天津大学环境科学与工程学院
关键词:
波式潜流人工湿地;水力停留时间;COD/N;温度;去除率
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。
译  名:
Treatment Efficiency of Wavy Subsurface Constructed Wetland for Removal of Nitrogen
作  者:
GUO Yu-zhang;ZHAO Nan;WANG Xiao-ou;ZHAO Xin-hua;Environmental Science and Engineering College,Tianjin University;
关键词:
W-SFCW;;HRT;;COD/N;;temperature;;removal rate
摘  要:
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 constructed wetland(W-SFCW)test device,and to discuss the nitrogen removal principle by detecting nitrogen content 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 5d,26.8 ℃,5,respectively.In addition,we found that ammonia nitrogen was mainly in shallow water through the nitrification into NO3 —N,and the NO3 —N was removed through the deep water denitrification into N2 in the deep water.

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