최용수 홍석원 권기한 2024-01-21T07:06:54Z 2024-01-21T07:06:54Z 2021-09-06 2004-05 2289-0971 https://pubs.kist.re.kr/handle/201004/137606 The performance of a newly designed wastewater treatment process equipped with an anaerobic and two intermittent aeration tanks operated alternately was investigated. During the experimental period, several types of cyclic operating schedules with different aeration and non aeration time were examined for the optimization. At all modes, the removals of organic matter and SS were highly achieved. With respect to T-N removal, however, the cycle length for aeration on/off affected the efficiencies. At the optimal operating mode, the ORP bending point indicating the disappearance of nitrate was observed. Considering the influent wastewater characteristics and cyclic operating schedules, it can be suggested that T-P removal is much more BOD/T-P ratio and/or its load dependant rather than the aeration on/off time. The results obtained from pilot-scale test showed the competitive advantage of this alternating process through an omission of nitrate recycle and operational flexibility against influent load variations when comparing with other continuous flow processes. Korean 한국물환경학회 혐기 및 2단 교호(交互) 간헐포기조를 이용한 하수고도처리에 관한 연구: 파일럿 규모의 실험결과를 중심으로 A Study on Biological Wastewater Treatment using the Combination of Anaerobic and Two Intermittent Aeration Tanks Operated Alternately: A Pilot-scale Study Article 2 한국물환경학회지, v.20, no.3, pp.269 - 274 한국물환경학회지 20 3 269 274 N kci ART001132569 Alternately intermittent aeration Bending point Nitrogen and Phosphorus removal Oxidation-reduction potential Alternately intermittent aeration Bending point Nitrogen and Phosphorus removal Oxidation-reduction potential