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Guo Ning, Zhang Jian, Kong Qiang, Miao Mingsheng, Tian Lin. Effect of temperature on ammoxidation and nitrous oxide emission in partial nitrification[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1308-1312.
Citation: Guo Ning, Zhang Jian, Kong Qiang, Miao Mingsheng, Tian Lin. Effect of temperature on ammoxidation and nitrous oxide emission in partial nitrification[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1308-1312.
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Effect of temperature on ammoxidation and nitrous oxide emission in partial nitrification

  • 1.

    School of Environmental Science and Engineering,Shandong University,Jinan 250100,China

  • 2.

    College of Life Science, Shandong Normal University, Jinan 250014, China

  • Received Date: 03/11/2012
    Accepted Date: 09/10/2012
    Available Online: 09/04/2013
    Fund Project:
  • To investigate the effect of temperature on partial nitrification and nitrous oxide emission in the process, batch experiments at different temperatures( 15℃,25℃,35℃)were conducted. The results indicated that temperature has important effect on partial nitrification and nitrous oxide emission in the process. In the range of 15 to 35℃, ammoxidation percentage, nitrite accumulation rate and the emission of nitrous oxide rose with the temperature going up. 35℃ is the appropriate temperature for partial nitrification, the reason is that the average ammoxidation percentage is 50.9%, the nitrite accumulation rate is 55.6% and the ratio of NO2--N to NH4+-N is 1.1 at this temperature. The ammoxidation percentage and the ratio of NO2--N to NH4+-N at 35℃ were appropriate, so the partial nitrification can supply proper inflow to anaerobic ammonium oxidation. The average emission of N2O is higher which is 1.494 μg/g MLSS.
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Effect of temperature on ammoxidation and nitrous oxide emission in partial nitrification

  • Received Date: 03/11/2012
  • Accepted Date: 09/10/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: To investigate the effect of temperature on partial nitrification and nitrous oxide emission in the process, batch experiments at different temperatures( 15℃,25℃,35℃)were conducted. The results indicated that temperature has important effect on partial nitrification and nitrous oxide emission in the process. In the range of 15 to 35℃, ammoxidation percentage, nitrite accumulation rate and the emission of nitrous oxide rose with the temperature going up. 35℃ is the appropriate temperature for partial nitrification, the reason is that the average ammoxidation percentage is 50.9%, the nitrite accumulation rate is 55.6% and the ratio of NO2--N to NH4+-N is 1.1 at this temperature. The ammoxidation percentage and the ratio of NO2--N to NH4+-N at 35℃ were appropriate, so the partial nitrification can supply proper inflow to anaerobic ammonium oxidation. The average emission of N2O is higher which is 1.494 μg/g MLSS.

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