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침출수의 생물학적 처리에있어서 질화 - 탈질수행중의 슬러지 반송비의 효과
Mavinic, D . S .,Elefsiniotis,Manoharan, R . 한국수처리기술연구회 1996 한국수처리학회지 Vol.4 No.3
침출수에서의 높은 암모니아(200-260ppm)를 처리하는 생물학적 단일 슬러지, 질화-탈질시스템에 있어서 슬러지 반송비의 효과가 조사되었다. 전체 암모니아제거가 4:1∼10:1의 반송비 증가에 의해 영향을 받지 않았지만 질화와 탈질수행들은 6:1을 초과해서는 매우 불안정하게 되었다. 같은 반송비는 또한 그 반송비의 탈질 가능성을 더 효율적으로 사용함으로써 시스템 유출에서 가장 낮은 NOx와 부유물질로 귀착되었다.
라창식(Chang Six Ra),(D . S . Mavinic) 한국수처리학회 1998 한국수처리학회지 Vol.6 No.3
This research evaluated the usefulness of a newly invented real-time control technology in the treatment of piggery wastewater. The new unit treatment process composed of two reactors was operated under two different treatment strategies, real-time control and fixed-time control. Comparisons between the real-time control technology and the fixed-time strategy revealed that high treatment performance could always be obtained in the real-time control, despite variations in influent composition, but not in the fixed-time operation. The average removal efficiencies of pollutants were over 97% in the real-time control. However, the treatment efficiencies in the fixed-time control were relatively poor. Also, the obtained effluent quality was relatively constant in the real-time control, while the effluent quality in the fixed-time operation was seriously variable, depending on the influent characteristics. The results from this study indicate that the real-time control strategy has an ability to optimize simultaneously biological pollutant removal and energy consumption by terminating aeration when nutrient removal is complete.