환경위생공학 (Journal of environmental and Sanitary engineering)

대한환경위생공학회 (Korean Society for Environmental Sanitary Engineers)
권호 표지

질산화 반응조에서 유기물 부하에 따른 암모니아 제거 특성

Characteristics of $NH_3$-N removal in nitrification reactor according to organic loading rate

  • 강민구 (충북대학교 공과대학 환경공학과) ;
  • 김금용 (충북대학교 공과대학 환경공학과) ;
  • 김승하 (충북대학교 공과대학 환경공학과) ;
  • 류홍덕 (충북대학교 공과대학 환경공학과) ;
  • 이상일 (충북대학교 공과대학 환경공학과)
  • Kang, Min-Koo (Department of Environmental Engineering, Chungbuk National University) ;
  • Kim, Keum-Yong (Department of Environmental Engineering, Chungbuk National University) ;
  • Kim, Seung-Ha (Department of Environmental Engineering, Chungbuk National University) ;
  • Ryu, Hong-Duck (Department of Environmental Engineering, Chungbuk National University) ;
  • Lee, Sang-Ill (Department of Environmental Engineering, Chungbuk National University)
  • 발행 : 2009.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구에서는 DEPHANOX공정을 변형한 두 개의 질산화 반응조를 둔 M-DEPHANOX 공정과 기존 변형된 질산화 반응조를 RBC로 대체한 형태로 단일 질산화 반응조로 운전된 M-DEPHANOX 공정을 운전하였다. 그리고 두 공정의 제거율을 비교하기 위하여 질소, 인 및 유기물 제거율과 질산화 반응조의 유기물 부하에 따른 $NH_3$-N 제거율을 조사하였다. 연구결과 $NH_3$-N 제거율은 M-DEPHANOX공정이 91.8%, M-eBNR 공정은 96.9%로서 두 공정 모두 높게 나타났다. TCOD와 SCOD 제거율은 M-DEPHANOX공정은 84.1와 78.2%, M-eBNR공정은 83.4%와 75.6%이었다. 또한 유기물이 $NH_3$-N 제거율에 미치는 영향은 M-eBNR 공정의 질산화 반응조에서는 1차 침전조에서 거의 나타나지 않았다. M-eBNR 공정의 $NH_3$-N 제거율은 도시하수의 유입성상이 달라지더라도 안정적으로 유지되었다.

The objective of this study was to investigate difference in nitrogen, organic, phosphorus and $NH_3$-N removal efficiency according to organic loading, comparing M-DEPHANOX process which has two nitrification reactor with M-eBNR process which has one nitrification reactor. As a result of this study, $NH_3$-N removal efficiency of M-DEPHANOX and M-eBNR resulted in average level of 91.8%, 96.9%, respectively. M-DEPHANOX and M-eBNR processes showed high removal efficiency in view of $NH_3$-N removal efficiency. Comparing organic removal efficiency by M-DEPHANOX and M-eBNR processes, the average removal efficiency in terms of TCOD, SCOD was 84.1%, 78.2% and 83.4%, 75.6%. Also, the results that observed about $NH_3$-N removal efficiency regarding organic loading revealed that nitrification reactor of RBC type are little influenced by flowing organic without precipitating at settling tank. Therefore, although inflow characteristics of municipal wastewater changes, M-eBNR process appeared to remove $NH_3$-N reliably.

키워드

참고문헌

  1. G. Bortone, S. Marsili Libelli, A. and Tilche, J. Wanner Anoxic Phosphate Uptake in the DEPHANOX Process, Wat. Sci. Tech., Vol. 40, Issues 4-5, pp.177-185, 1999 https://doi.org/10.1016/S0273-1223(99)00500-4
  2. Ryu. H. D., Min, K. K. and Lee. S. I. : Effect of Loading Rate in the Operation of DEPHANOX and Modified-DEPHANOX Processes, Journal. of Korea Society on Water Quality Vol. 20, No. 1, pp.24-31, 2004
  3. Ryu, H. D. and Lee, S. I. : The Study for Enhancement of Nitrogen Removal Efficiency in M-Dephanox Process Journal. of Korea Society on Water Qualjty Vol. 22, No. 1, pp.74-82, 2006
  4. Hu, Zhi-rong, Wentzel, M. C. and Ekama, G. A. : External Nitrification in Biological Nutrient Removal Activated Sludge System, Water S. A.. Vol. 26. No.2 pp.225-238, 2000
  5. Rao Y. Surampalli, and E. Robert Baumann : Sludge production in rotating biological contactor wíth supplemental aeration and an enlarged first stage, Vol. 54, Bioresour. Technol, pp.297-304, 1995 https://doi.org/10.1016/0960-8524(95)00147-6
  6. Andrew, D. E., Lenore, S. C., Eugene, W. R. and Arnold, E. G. Standard methods lor the examination of water & wastewater 21st Edition., APHA. AWWA, WEF, 2005
  7. Demetrios N. H., Ioannis D. M. and Sotirios G. G Organic and nitrogen removal in a two-stage rotating biological contactor treating municipal wastewater, Vol. 93. Bioresour. Technol, pp.91-98. 2004 https://doi.org/10.1016/j.biortech.2003.06.005
  8. Bliss, P. J. and D. Barnes. Biological nitrogen control in wastewater J. EFFI. Wat. Treatment, pp.65, 1981
  9. Ryu. H. D. Development of Hybrid Process for Nutrient Removal Using Contact Stabilization Technique Ph. D. Dissertation, University of ChungBuk. 2005
  10. Marais. G. V. R., Loewenthal, R. E., and Siebritz. I. P. : Observations Supporting Phosphate Removal by Biological Excess Uptake-A review. Wat. Sci. Tech. Vol 15. pp.15-41, 2005