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http://dx.doi.org/10.4491/eer.2014.19.1.023

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)
Publication Information
Environmental Engineering Research / v.19, no.1, 2014 , pp. 23-29 More about this Journal
Abstract
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.
Keywords
Aerobic granular sludge; Ammonium loading rate; Coating; Nitrification; Nitrifying bacteria;
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