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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.
초록· 키워드
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Heterotrophic nitrification aerobic denitrification are biological process for treating wastewater. Its purpose is to remove nitrogen from wastewater, such as nitrite or nitrate. The key to these processes lie in selecting strains with high efficiency in heterotrophic nitrification and aerobic denitrification, and studying their cultivation and application conditions. In this study, Acinetobacter sp. strain MLW2301 was isolated from the lake water and sediment of Mines Lake, Selangor, Malaysia. This strain exhibits strong heterotrophic nitrification and aerobic denitrification abilities, effectively decomposing nitrate and nitrite in wastewater. By optimizing the culture conditions, the biomass reached 8.12 × 10<sup>9</sup> CFU/ml after 8h under conditions of pH 7.0, 35℃, and 300 rpm. In the application condition optimization tests, the strain demonstrated optimal nitrite and nitrate removal efficiency at 28.05℃, pH 6.45, and 270.48 rpm. The removal rates for nitrite and nitrate were 65.13% and 78.26%, corresponding to 2.61 mg/L/h and 3.13 mg/L/h, respectively. Temperature was found to be a significant factor while all the other pairwise interactions were insignificant. The MLW2301 strain shows strong nitrogen removal capabilities, making it effective in purifying water by removing nitrate and nitrite from wastewater. It holds significant commercial potential for practical applications.
목차
Materials and Methods
Results
Discussion
References
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