한국환경과학회지 (Journal of Environmental Science International)

  • 제12권1호
  • /
  • Pages.55-61
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  • 2003
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  • 1225-4517(pISSN)
  • /
  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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생물학적 질소.인 제거를 위한 SMMIAR(Submerged Moving Media Intermittent Aeration Reactor) 공정의 운전 특성

The Operating Characteristics of SMMIAR process for Biological Nitrogen.phosphorus Removal

  • 김홍태 (경북대학교 토목공학과) ;
  • 김학석 (경북대학교 토목공학과) ;
  • 김규창 (경북대학교 토목공학과)
  • 발행 : 2003.01.01
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초록

This study was carried out to obtain the operating characteristics of SMMIAR process for biological nitrogenㆍphosphorus removal. SMMIAR was operated at HLR(Hydraulic loading rate) of 39.6, 52.8, 63.4 and 79.2 $\ell$/$m^2$/d respectively and the operating parameters such as intermittent aeration time ratio of aerobic/anoxic, DO and microorganism concentration were changed to confirm the optimum operating condition. The concentrations of the wastewater BOD, TN(Total nitrogen) and TP(Total phosphorus) were 150, 30 and 7.5mg/$\ell$ respectively. Achieving better removal efficiencies of BOD, TN and TP up to 90, 85.4 and 95.4% respectively, we must keep in operation condition of SMMIAR by 0.75 of time ratio of aerobic/anoxic and by minimum 45 minutes of oxic period simultaneously.

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참고문헌

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