한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제22권2호
  • /
  • Pages.300-307
  • /
  • 2006
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

SHARON/ANAMMOX 결합공정에서 슬러지의 입상화와 특성

Granulation and Characteristics of Sludges in the Combined SHARON/ANAMMOX Processes

  • 황인수 (상주시축산폐수처리사업소) ;
  • 민경석 (경북대학교 환경공학과)
  • Hwang, In-Su (Office of Livestock Wastewater Treatment Plant, Sanju city) ;
  • Min, Kyung-Sok (Department of Environmental Engineering, Kyungpook National University)
  • 투고 : 2005.10.20
  • 심사 : 2005.12.21
  • 발행 : 2006.03.30
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초록

The combined SHARON (Single reactor system for High ammonium Removal Over Nitrite)-ANAMMOX (Anaerobic ammonium oxidation) reactor were operated in mesophilic condition ($35^{\circ}C$). In this study, microbial granulation and characteristics of SHARON and ANAMMOX sludges were investigated using settling test, Scanning Electron Microscopy (SEM) and Fluorescence In Situ Hybridization (FISH). In SHARON reactor, Aerobic granulation with diameter of 1.5~2.5 mm was accomplished but aerobic granulation was weaker than anaerobic granular sludge. Initial seed sludge of ANAMMOX reactor was used as attached media for biofilm growth. ANAMMOX sludge was more compact and rounder rather than seed sludge. Though ANAMMOX sludge has high activity, it has lower settling ability than the seed granule. The color of ANAMMOX sludge was changed from dark to redish brown granular with diameter of 1~2 mm. In FISH of ANAMMOX sludge, high fraction of Candidatus B. stuttgartiensis which paid great role of nitrogen conversion was detected. Also, FISH results reveals that ANAMMOX bacteria inhabit at inner parts near surface, having advantages in utilization of substrates and protection from oxygen inhibition.

키워드

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