한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제23권5호
  • /
  • Pages.636-641
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  • 2007
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

반류수처리를 위한 현장 pilot plant 생물막 아질산화 반응조에서 운전인자 평가

Evaluation of Operating Parameters of Reject Water Treatment System with Pilot-scale Biofilm Nitritation Plant at Field Condition

  • 한진희 (고려대학교 대학원 환경공학과) ;
  • 권민 (고려대학교 대학원 환경공학과) ;
  • 한종훈 (고려대학교 대학원 환경공학과) ;
  • 윤주환 (고려대학교 대학원 환경공학과) ;
  • 남해욱 ((주)포스코건설 기술연구소) ;
  • 고주형 ((주)포스코건설 기술연구소)
  • Han, Jinhee (Department of Environmental Engineering, Korea University) ;
  • Kwon, Min (Department of Environmental Engineering, Korea University) ;
  • Han, Jonghun (Department of Environmental Engineering, Korea University) ;
  • Yun, Zuwhan (Department of Environmental Engineering, Korea University) ;
  • Nam, Haiuk (Research & Engineering Division, POSCO Engineering & Construction CO., LTD) ;
  • Ko, Joohyung (Research & Engineering Division, POSCO Engineering & Construction CO., LTD)
  • 투고 : 2007.07.30
  • 심사 : 2007.09.07
  • 발행 : 2007.09.30
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초록

A pilot-scale biofilm nitiritation reactor was operated with the reject water from a large wastewater treatment plant. The effects of various operating parameters including pH, temperature, dissolved oxygen, solids and organic concentrations were examined. A stable nitritation was achieved at operating pH range of 7.3 to 8.8 with an alkalinity addition. Higher operating temperature of $35{\pm}0.7^{\circ}C$ achieved more stable nitritation compared to $30{\pm}0.2^{\circ}C$. It has been noticed that nitrite accumulation maintained with DO, solids and organic concentrations range of 0.8 to 3.9 mg/L, 3,400 to 11,000 mg/L, and 86 to 572 mg/L, respectively. It seems that the accumulation of nitrite was caused by both the inhibition of $NO_2{^-}$ oxidizers due to free ammonia and the maintenance of the high operating temperature of $35^{\circ}C$ which promote to accumulate the $NH_4{^+}$ oxidizers in the reactor. According to microbial community analysis of fluorescence in situ hybridization and INT-Dehydrogenase measurements, more nitrifiers were presented in attached form compared to suspended growth.

키워드

과제정보

연구 과제번호 : Integrated advanced treatment system을 위한 BNR 고효율화 탄소원 최적화 기술개발(2006), 생물학 아질산화의 영향요소 연구

연구 과제 주관 기관 : 환경부, 고려대학교

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