Aerobic Granules for the Effective Oxidation of Ammonium Nitrogen

  • Lee, Hyo Lee (Department of Environmental Engineering and Energy, Myongji University) ;
  • Ryu, Jae Hun (Department of Environmental Engineering and Energy, Myongji University) ;
  • Lee, Youn Pyo (Department of Environmental Engineering and Energy, Myongji University) ;
  • Kim, Tae Seok (Department of Environmental Engineering and Energy, Myongji University) ;
  • Kim, Min Kyeong (Department of Environmental Engineering and Energy, Myongji University) ;
  • Ahn, Do Thi Ngoc (Department of Environmental Engineering and Energy, Myongji University) ;
  • Ahn, Dae Hee (Department of Environmental Engineering and Energy, Myongji University)
  • Received : 2013.05.24
  • Accepted : 2013.11.30
  • Published : 2014.03.30


In this study, aerobic granules were applied to a lab-scale aerobic granule sludge airlift reactor (AGSAR) and the ammonium nitrogen oxidation performance was evaluated at different ammonium nitrogen loading rate (NLR). At least 99% of the initial ammonium nitrogen was oxidized at an NLR of 0.27 and 0.53 kg $NH_4{^+}-N/m^3{\cdot}day$, for both aerobic granules (control), and nitrifying aerobic granules (NAGs). The ammonium nitrogen oxidation deteriorated, when the NLR was increased to 1.07 kg $NH_4{^+}-N/m^3{\cdot}day$. The NAGs were characterized by complete nitrification, while partial nitrification was observed in the control.


Supported by : National Research Foundation of Korea


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