Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Proposed Operating Parameters for Advanced Treatment Process using a Cilium Media BNR Process

섬모상담체를 이용한 고도처리공정의 운전인자 도출

  • Ahn, Yoon Hee (School of Civil and Environmental Engineering, Yonsei University) ;
  • Park, Chan Gyu (School of Civil and Environmental Engineering, Yonsei University) ;
  • Ko, Kwang Baik (School of Civil and Environmental Engineering, Yonsei University) ;
  • Lee, Kang Soo (Kyong-ho engineering & architects co., ltd)
  • 안윤희 (연세대학교 공과대학 토목환경공학과 환경공학연구실) ;
  • 박찬규 (연세대학교 공과대학 토목환경공학과 환경공학연구실) ;
  • 고광백 (연세대학교 공과대학 토목환경공학과 환경공학연구실) ;
  • 이강수 (경호엔지니어링)
  • Received : 2007.08.16
  • Accepted : 2007.09.19
  • Published : 2007.09.30
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Abstract

The study were conducted in order to investigate the effect of operating parameters including the internal recycle (nitrification return) rates, hydraulic retention times (HRTs) and temperature when using a cilium media method. The first experiment was for evaluating the effect of HRT (12 hr, 10 hr, 8 hr, 6 hr, 4 hr). The second experiment was for analyzing effect of internal recycle rate (100%, 200%, 300%, 400%). As a result of the first experiment, BOD was removed to 97~98% for 6~8 hr HRT. Effluent water quality was not significantly influenced with HRT within that range. However the nitrogen removal was sensitive to HRT. T-P removal efficiency was invariable at various HRTs. The average BOD removal efficiency was about 97% in spite of change of internal recycle rate while T-N removal efficiency was increased at the internal recycle rate of 100~200%, but invariable at the internal recycle rate of 200~300%.

Keywords

References

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