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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 960 - 968 (9page)
이용수
초록· 키워드
오류제보하기
In this study, the effect of CuO nanoparticles (NPs) on partial nitrification (PN) process was investigated at various pH values. The short- and long-term experiments were carried out in six identical reactors, with or without CuO NPs, at pH values of 6.5, 8.0 and 10.0. The ammonia oxidation, reaction rates, copper content, and the microbial community were investigated. The results of this work suggested that CuO NPs inhibited the ammonia oxidation by aerobic ammonia-oxidizing bacteria (AOB), under both the acid and alkali conditions. AOB could resist the acid condition but was significantly suppressed when CuO NPs was fed, and the low pH did not aggravate the inhibition level. Almost all the bacteria lost bioactivity under the pH as 10.0, while anaerobic ammonia-oxidizing bacteria survived. The acid condition increased the Nitrosomonas relative abundance while the alkali condition lowered it. More than 60% of the supplied CuO NPs was discharged via effluent.
목차
ABSTRACT
1. Introduction
2. Material and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (30)
참고문헌 신청
Lackner S, Gilbert EM, Vlaeminck SE, Joss A. Full-scale partial nitritation/anammox experiences - An application survey. Water Res. 2014;55:292-303.
Yue X, Yu G, Lu Y. Effect of dissolved oxygen on nitrogen removal and the microbial community of the completely autotrophic nitrogen removal over nitrite process in a submerged aerated biological filter. Bioresour. Technol. 2018;254:67-74.
Gilbert E, Agrawal S, Karst S. Low Temperature Partial Nitritation/Anammox in a Moving Bed Biofilm Reactor Treating Low Strength Wastewater. Environmen. Sci. Technol. 2014;48: 8784-8792.
Sun H, Peng Y, Wang S. Achieving nitritation at low temperatures using free ammonia inhibition on Nitrobacter and real- time control in an SBR treating landfill leachate. J. Environ. Sci. (China) 2015;30:157-163.
Yao Q, Peng D, Wang B. Effect of free ammonium and free nitrous acid on the activity, aggregate morphology and extracellular polymeric substance distribution of ammonium oxidizing bacteria in partial nitrification. J. Biosci. Bioeng. 2017;124: 319-326.
Yue X, Yu G, Lu Y. Effect of dissolved oxygen on nitrogen removal and the microbial community of the completely autotrophic nitrogen removal over nitrite process in a submerged aerated biological filter. Bioresour. Technol. 2018;254:67-74.
Gilbert E, Agrawal S, Karst S. Low Temperature Partial Nitritation/Anammox in a Moving Bed Biofilm Reactor Treating Low Strength Wastewater. Environmen. Sci. Technol. 2014;48: 8784-8792.
Sun H, Peng Y, Wang S. Achieving nitritation at low temperatures using free ammonia inhibition on Nitrobacter and real- time control in an SBR treating landfill leachate. J. Environ. Sci. (China) 2015;30:157-163.
Yao Q, Peng D, Wang B. Effect of free ammonium and free nitrous acid on the activity, aggregate morphology and extracellular polymeric substance distribution of ammonium oxidizing bacteria in partial nitrification. J. Biosci. Bioeng. 2017;124: 319-326.
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UCI(KEPA) : I410-ECN-0101-2020-539-000545655