담체 충진여부에 따른 회분식 반응기내 혐기성 암모니아 산화 미생물의질소제거 경향 (The Tendency of the N Removal by Anaerobic Ammonia Oxidation Bacteria with or without Packed Media in SBR)

서지정보

· 발행기관 : 한국수처리학회
· 수록지 정보 : 한국수처리학회지 / 24권 / 2호 / 71 ~ 79페이지
· 저자명 : 오상화

초록

Anaerobic ammonium oxidation (anammox) coupled to nitrite or nitrate reduction is very slow reaction with about 20days of doubling time. For cultivation of the very slow growing bacteria, a sequencing batch reactor (SBR) is considered the most credible reactor and the utilization of media for providing a high biomass concentration using a vast surface area. This study compared the N removal efficiencies of SBR with fluidized media to those without media. The optimum operating time in SBR with and without media, when the removal efficiency of TN did not increase anymore, appeared at 21 h and 24h, respectively. The TN removal efficiency was 61% and 35% in SBR with and without packed media at 24 h. It is because NO3- and NH3 in SBR with media were more removed and NO3- was less produced than those without media by anammox and denitrification bacteria.

영어초록

Anaerobic ammonium oxidation (anammox) coupled to nitrite or nitrate reduction is very slow reaction with about 20days of doubling time. For cultivation of the very slow growing bacteria, a sequencing batch reactor (SBR) is considered the most credible reactor and the utilization of media for providing a high biomass concentration using a vast surface area. This study compared the N removal efficiencies of SBR with fluidized media to those without media. The optimum operating time in SBR with and without media, when the removal efficiency of TN did not increase anymore, appeared at 21 h and 24h, respectively. The TN removal efficiency was 61% and 35% in SBR with and without packed media at 24 h. It is because NO3- and NH3 in SBR with media were more removed and NO3- was less produced than those without media by anammox and denitrification bacteria.

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