Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Applicability of the SBR Process Using Aerobic Granular Sludge (AGS) in Municipal Wastewater Treatment

호기성 그래뉼 슬러지를 이용한 연속 회분식 공정의 도시하수처리에 대한 적용

  • Yae, Jae-Bin (Department of Environmental Engineering and Energy, Graduate School Myongji University) ;
  • Ryu, Jae-Hoon (Department of Environmental Engineering and Energy, Graduate School Myongji University) ;
  • Hong, Seong-Wan (Department of Environmental Engineering and Energy, Graduate School Myongji University) ;
  • Kim, Hyun-Gu (BlueBank Co., Ltd.) ;
  • Ahn, Dae-Hee (Department of Environmental Engineering and Energy, Graduate School Myongji University)
  • 예재빈 (명지대학교 환경에너지공학과 일반대학원) ;
  • 류재훈 (명지대학교 환경에너지공학과 일반대학원) ;
  • 홍성완 (명지대학교 환경에너지공학과 일반대학원) ;
  • 김현구 (주식회사 블루뱅크) ;
  • 안대희 (명지대학교 환경에너지공학과 일반대학원)
  • Received : 2018.01.05
  • Accepted : 2018.03.09
  • Published : 2018.04.30
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Abstract

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 $COD_{Cr}$ 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 $SVI_{30}$ was 67 mL/g. The SNR and SDNR were 0.073-0.161 kg $NH_4{^+}$-N/kg MLVSS/day and 0.071-0.196 kg $NO_3{^-}$-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.

Keywords

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