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논문 기본 정보

자료유형
학술저널
저자정보
Daehee Choi (Yeungnam University) Thanh Phuong To (Yeungnam University) Wonsang Yun (Yeungnam University) Dongjin Ju (Samjin precision) Keugtae Kim (Suwon University) Jinyoung Jung (Yeungnam University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제27권 제1호
발행연도
2022.2
수록면
178 - 182 (5page)

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초록· 키워드

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In order to achieve an appropriate effluent ratio of ammonium and nitrite as an influent of the anaerobic ammonium oxidation process, the optimum conditions for the partial nitritation in a continuous stirred tank reactor (CSTR) were investigated using real reject water. Hydraulic retention time (HRT) and influent alkalinity (HCO₃<SUP>-</SUP>)/NH₄<SUP>+</SUP>-N ratio were major factors that greatly influenced the partial nitritation. As a result of continuous operation, ammonium conversion efficiency (ACE) and effluent nitrite to ammonium ratio (NAR) could be achieved at the HRT of 19 h corresponding to 0.71 ㎏/㎥/d of nitrogen loading rate (NLR). Thereafter, the influent HCO₃<SUP>-</SUP>/NH₄<SUP>+</SUP>-N ratio was adjusted from 0.5 to 2, and as a result, the optimum partial nitritation efficiency was maintained when the influent HCO₃<SUP>-</SUP>/NH₄<SUP>+</SUP>-N ratio was one. The suitability of the determined operating conditions was verified in a CSTR over 30 d of operation time.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Reference

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