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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제27권 제10호
- 발행연도
- 2017.1
- 수록면
- 1,798 - 1,807 (10page)
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The differentiations in nitrogen-converting activity and microbial community structure between granular size fractions in a continuous completely autotrophic nitrogen removal over nitrite (CANON) reactor, having a superior specific nitrogen removal rate of 0.24 g/(g VSS·d), were investigated by batch tests and high-throughput pyrosequencing analysis, respectively.
Results revealed that a high dissolved oxygen concentration (>1.8 mg/l) could result in efficient nitrite accumulation with small granules (0.2-0.6 mm in diameter), because aerobic ammonium-oxidizing bacteria (genus Nitrosomonas) predominated therein. Meanwhile, intermediate size granules (1.4-2.0 mm in diameter) showed the highest nitrogen removal activity of 40.4 mg/(g VSS·h) under sufficient oxygen supply, corresponding to the relative abundance ratio of aerobic to anaerobic ammonium-oxidizing bacteria (genus Candidatus Kuenenia) of 5.7. Additionally, a dual substrate competition for oxygen and nitrite would be considered as the main mechanism for repression of nitrite-oxidizing bacteria, and the few Nitrospira spp. did not remarkably affect the overall performance of the reactor. Because all the granular size fractions could accomplish the CANON process independently under oxygen limiting conditions, maintaining a diversity of granular size would facilitate the stability of the suspended growth CANON system.
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참고문헌 (23)
참고문헌 신청
APHA / 1998 / Standard Methods for Examination of Water and Wastewater / American Public Health Association
Adav SS / 2008 / Extraction of extracellular polymeric substances from aerobic granule with compact interior structure / J. Hazard. Mater 154 : 1120 ~ 1126
Bassin JP / 2012 / Measuring biomass specific ammonium, nitrite and phosphate uptake rates in aerobic granular sludge / Chemosphere 89 : 1161 ~ 1168
Guo JH / 2016 / Metagenomic analysis of anammox communities in three different microbial aggregates / Environ. Microbiol 18 : 2979 ~ 2993
Lackner S / 2014 / Full-scale partial nitritation/anammox experiences ? an application survey / Water Res 55 : 292 ~ 303
Adav SS / 2008 / Extraction of extracellular polymeric substances from aerobic granule with compact interior structure / J. Hazard. Mater 154 : 1120 ~ 1126
Bassin JP / 2012 / Measuring biomass specific ammonium, nitrite and phosphate uptake rates in aerobic granular sludge / Chemosphere 89 : 1161 ~ 1168
Guo JH / 2016 / Metagenomic analysis of anammox communities in three different microbial aggregates / Environ. Microbiol 18 : 2979 ~ 2993
Lackner S / 2014 / Full-scale partial nitritation/anammox experiences ? an application survey / Water Res 55 : 292 ~ 303
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