Experimental study of nitrite accumulation in predenitrification biological nitrogen removal process
作者: Xuelei WuLunqiang ChenYongzhen PengYayi WangPu Wang
作者单位: 1Key Laboratory of Beijing Water Environment Recovery, Beijing University of Technology
2School of Architectural Engineering, Zhejiang University of Technology
刊名: Frontiers of Environmental Science & Engineering in China, 2008, Vol.2 (2), pp.236-240
来源数据库: Springer Journal
DOI: 10.1007/s11783-008-0008-x
关键词: pre-denitrificationbiological nitrogen removalnitrite accumulationdissolved oxygen
英文摘要: Abstract(#br)The effect of dissolved oxygen (DO) concentration on nitrite accumulation was investigated in a pilot-scale pre-denitrification process at room temperature for 100 days. In the first 10 days, due to the instability of the system, the DO concentration fluctuated between 1.0 and 2.0 mg/L. In the next 14 days, the DO concentration was kept at 0.5 mg/L and nitrite accumulation occurred, with the average nitrite accumulation rate at 91%. From the 25th day, the DO concentration was increased to 2.0 mg/L to destroy the nitrite accumulation, but nitrite accumulation rate was still as high as 90%. From the 38th day the nitrite accumulation rate decreased to 15%–30% linearly. From the 50th day, DO concentration was decreased to 0.5 mg/L to resume nitrite accumulation. Until the 83rd...
全文获取路径: Springer  (合作)
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关键词翻译
关键词翻译
  • removal 消去
  • nitrogen 
  • biological 生物学的
  • nitrite 亚硝酸盐
  • accumulation 堆积
  • process 过程
  • study 学习