Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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A Study on the Field Application of Intermittently Aerated Activated Sludge Process for Water Reuse System

간헐포기 활성슬러지 중수처리공정의 현장적용 연구

  • 서인석 (한국수자원공사 수자원연구소 수도연구부 수처리팀) ;
  • 김병군 (한국수자원공사 수자원연구소 수도연구부 수처리팀) ;
  • 박승국 (한국수자원공사 수자원연구소 수도연구부 수처리팀) ;
  • 권선웅 (한국수자원공사 총무관리처)
  • Published : 2000.12.30
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Abstract

Intermittently aerated activated sludge process was applied as a water reuse process of $70m^3/day$ for the upgrade of organic, nitrogen and phosphorus removal efficiency and clarifier performance. After application of the intermittently aeration, removal efficiency of BOD, SS, T-N and T-P were achieved 95%, 90%, 80% and 60%, respectively. Removal efficiencies in intermittently aerated process were considerably increased. comparing to those of continuously aerated activated sludge process. Also sludge rising problem in clarifier was improved. Average concentration of supplied reusing water were BOD 5 mg/L, turbidity 4 NTU and after chlorination, residual chlorine 0.4 mg/L, coliform 0 MPN/100mL. Intermittently aerated activated sludge process could be one of the best alternative process for the retrofit of conventional activated sludge process for the removal of nutrient in water reuse system.

Keywords

References

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