한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권3호
  • /
  • Pages.444-450
  • /
  • 2006
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

(AO)2 SBBR과 A2O SBBR에서 영양염류 제거 특성 비교

A Comparison of Nutrient Removal Characteristics between (AO)2 SBBR and A2O SBBR

  • 박영식 (대구대학교 보건과학부) ;
  • 김동석 (대구가톨릭대학교 환경과학과)
  • Park, Young-Seek (Division of health Science, Daegu University) ;
  • Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
  • 투고 : 2005.06.20
  • 심사 : 2006.03.08
  • 발행 : 2006.05.30
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초록

This study was carried out to compare the performance of two types of sequencing batch biofilm reactors (SBBRs), anoxic-oxic-anoxic-oxic $(AO)_2$ SBBR and anoxic-oxic-anoxic $A_2O$ SBBR, on the biological nutrient removal. The TOC removal efficiency in $A_2O$ SBBR was higher than that in $(AO)_2$ SBBR. At the 1st non-aeration period, the release of ${PO_4}^{3-}-P$ in $A_2O$ SBBR was higher than that in $(AO)_2$ SBBR because of the high TOC removal. At the 1st aeration-period, the nitrification was not completed in $(AO)_2$ SBBR, however, it was completed in $A_2O$ SBBR and the nitrification rate in $A_2O$ SBBR was higher than that in $(AO)_2$ SBBR. The release and uptake of ${PO_4}^{3-}-P$ in $A_2O$ SBBR was much higher than in $(AO)_2$ SBBR. Also, the profiles of DO and pH in reactors were used to monitor the biological nutrient removal in two SBBRs. The break point in DO and pH curves at the aeration period coincided with the end of nitrification.

키워드

과제정보

연구 과제 주관 기관 : 대구가톨릭대학교

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