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KMID : 1171820090240030007
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Journal of Environmental and Sanitary Engineering
2009 Volume.24 No. 3 p.7 ~ p.15
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Characteristics of NH₃-N removal in nitrification reactor according to organic loading rate
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Kang Min-Koo
Kim Keum-Yong
Kim Seung-Ha
Ryu Hong-Duck
Lee Sang-Ill
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Abstract
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The objective of this study was to investigate difference in nitrogen, organic, phosphorus and NH₃-N removal efficiency according to organic loading, comparing M-DEPHANOX process which has two nitrification reactor with M- eBNR process which has one nitrification reactor. As a result of this study, NH₃-N removal efficiency of M-DEPHANOX and M- eBNR resulted in average level of 91.8%, 96.9%, respectively. M-DEPHANOX and M- eBNR processes showed high removal efficiency in view of NH₃-N removal efficiency. Comparing organic removal efficiency by M-DEPHANOX and M- eBNR processes, the average removal efficiency in terms of TCOD, SCOD was 84.1%, 78.2% and 83.4%, 75.6%. Also, the results that observed about NH₃-N removal efficiency regarding organic loading revealed that nitrification reactor of RBC type are little influenced by flowing organic without precipitating at settling tank. Therefore, although inflow characteristics of municipal wastewater changes, M- eBNR process appeared to remove NH₃-N reliably.
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KEYWORD
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M-DEPHANOX, M-eBNR(Nitrificatrion of RBC reactor), RBC(Rotating Biological Contactor), NH₃-N removal efficiency, NH₃-N 제거율
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