The purpose of this study was to confirm the applicability of aerobic granular sludge (AGS) in the advanced sewage treatment process. Simulated influent was used in the operation of a laboratory scale reactor. The operation time of one cycle was 4 h and the reactor was operated for six cycles per day. The volume exchange ratio was 50%. The influent was injected in divisions of 25% to increase the removal efficiency of nitrogen in every cycle. As a result, the removal efficiencies of CODCr and TN in this reactor were 98.2% and 76.7% respectively. During the operation period, the AGS/MLVSS concentration ratio increased from 70.0% to 86.7%, and the average SVI30 was 67 mL/g. The SNR and SDNR were 0.073 0.161 kg NH4 +-N/kg MLVSS/day and 0.071 0.196 kg NO3 --N/kg MLVSS/day respectively. These values were higher or similar to those reported in other studies. The operation time of the process using AGS is shorter than that of the conventional activated sludge process. Hence, this process can replace the activated sludge process.

Abstract
 1. 서 론
 2. 실험재료 및 방법
  2.1. 하수 성상 및 실험재료
  2.2. 동역학 인자 도출방법
  2.3. 실험장치 및 운전조건
  2.4. 수질분석 및 현미경 관찰
 3. 결과 및 고찰
  3.1. 동역학 인자 도출
  3.2. 영양물질 제거효율
  3.3. 호기성 그래뉼 슬러지의 농도 및 비율 변화
  3.4. 호기성 그래뉼 슬러지의 침전성 변화
 4. 결 론
 REFERENCE

• 예재빈(명지대학교 환경에너지공학과 일반대학원) | Jae-Bin Yae (Department of Environmental Engineering and Energy, Graduate School Myongji University)
• 류재훈(명지대학교 환경에너지공학과 일반대학원) | Jae-Hoon Ryu (Department of Environmental Engineering and Energy, Graduate School Myongji University)
• 홍성완(명지대학교 환경에너지공학과 일반대학원) | Seong-Wan Hong (Department of Environmental Engineering and Energy, Graduate School Myongji University)
• 김현구(주식회사 블루뱅크) | Hyun-Gu Kim (BlueBank Co., Ltd.)
• 안대희(명지대학교 환경에너지공학과 일반대학원, 주식회사 블루뱅크) | Dae-Hee Ahn (Department of Environmental Engineering and Energy, Graduate School Myongji University, BlueBank Co., Ltd.) Corresponding author