Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Correlation between operation factors and nitritation using anaerobic digester supernatant at ordinary temperature

상온 조건에서 혐기 소화 상징액을 이용한 아질산화 반응과 운전 인자의 상관성 분석

  • Im, Jiyeol (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
  • 임지열 (고려대학교 건축사회환경공학과) ;
  • 길경익 (서울과학기술대학교 건설시스템공학과)
  • Received : 2016.06.30
  • Accepted : 2016.08.01
  • Published : 2016.08.31
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Abstract

Anaerobic digester supernatant including high concentrations of nitrogen is recycled to water treatment line and make pollutant load increase in municipal wastewater treatment plant(MWTP). To treat nitrogen in anaerobic digester supernatant is suggested the method of MWTP retrofit. In this study, the lab scale reactor was operated about 200 days using supernatant of anaerobic digester. The results could draw operation condition that ammonium nitrogen removal efficiency more than 90% and nitrite conversion efficiency over 70%. Correlation between operation efficiency and operation factors was analyzed based on the operation results. Ammonium nitrogen remove efficiency and nitrite conversion efficiency were related to solid retention time (SRT), ammonium nitrogen load and ammonium nitrogen loading per unit mixed liquer suspended solid (MLSS). Results of this study can be used effective data on nitritation of supernatant of anaerobic digester, and be expected to increase availability of nitritation.

혐기 소화 상징액은 고농도 질소를 함유하고 있으며 수처리 계통으로 반송되어 하수처리장 유입 부하를 증가시킨다. 혐기 소화 상징액 내 고농도 질소를 아질산화 반응을 통해 처리하게 된다면, 경제적인 하수처리장 개조 효과를 기대할 수 있다. 본 연구에서는 혐기 소화 상징액을 이용한 장기간 실험실 규모 반응조 운전을 실시하였다. 운전 결과 암모니아성 질소 제거율 90% 이상과 아질산화율 70% 이상 효율을 보이는 운전 조건을 도출할 수 있었다. 또한 이를 바탕으로 운전 인자와 암모니아성 질소 제거 효율 및 아질산화율의 상관성을 분석하였다. 운전 결과 암모니아성 질소 제거 효율과 아질산화율은 미생물 체류시간 (SRT), 암모니아성 질소 부하 및 단위 미생물 농도 (MLSS) 당 암모니아성 질소부하와 관계가 큰 것을 확인할 수 있었다. 본 연구 결과는 향후 혐기 소화 상징액의 아질산화 반응 유도에 중요 자료로 활용될 수 있으며, 아질산화 반응의 활용성을 증가시킬 것을 기대한다.

Keywords

References

  1. APHA, AWWA and WEF (1998). Standard method for examination of water and wastewater. 20th edition, Washington DC, US.
  2. Gali, A, Dosta, J, Lopez-palau, S and Mata-alvarez, J (2008) SBR technology for high ammonium loading rates. Wat. Sci. & Tech., 58(2), pp. 467-472. https://doi.org/10.2166/wst.2008.408
  3. Gil, K, Choi, E, Yun, Z, Lee, J, Ha, J and Park, J (2002) The nomographic design approach to recycled water treatment by the nitritation process, Wat. Sci. & Tech., 46(11-12), pp. 85-92.
  4. Gil, K and Choi, E (2004) Nitrogen removal by recycle water nitritation as an attractive alternative for retrofit technologies in MWTPs, Wat. Sci. & Tech., 49(5-6), pp. 39-46.
  5. Im, J and Gil, K (2011a) Evaluation of Nitritation of High Strength Ammonia with Variation of SRT and Temperature using Piggery Wastewater, J. of Korean society on water environment, 27(5), pp. 563-571. [Korean Literature]
  6. Im, J, Jung, J, Bae, H, Kim, D and Gil K (2014). Correlation between Nitrite Accumulation and Concentration of AOB in a Nitritation reactor. Environ Earth Sci, 72, pp. 289-297. https://doi.org/10.1007/s12665-014-3285-7
  7. Kang, S, K, Jong, S, P, Hyeon, S, H, Kyoung, H, R (2012) Characteristics of Non-point Source Runoff in Housing and Industrial Area during Rainfall. Korean Wetlands Society, 14(4), pp. 581-589. [Korean Literature]
  8. Kim, LH, Lee, S (2005). Characteristics of Metal Pollutants and Dynamic EMCs in a Parking Lot and a Bridge during Storms. J. of Korean society on water environment, 21(3). pp. 248-255. [Korean Literature]
  9. Lee, EJ, Son, H, Kang, HM, Kim, LH (2007). Characteristics of Non-point Pollutant from Highway Toll Gate Landuse. J. of Korean Society of Road Engineers, pp. 185-192. [Korean Literature]
  10. Li, H B, Cao, H B, Li, Y P, Zhang, Y and Liu, H R (2010). Effect of Organic Compounds on Nitrite Accumulation during the Nitrification Process for Coking Wastewater. Wat Sci Tech, 62(9), pp. 2096-2105. https://doi.org/10.2166/wst.2010.371
  11. van de Graaf, A A, de Bruijn, P, Robertson, L A, Kuenen, J G and Mulder, A (1991). Biological oxidation of ammonium under anoxic conditions : ANAMMOX process. Intern. Symp. Environ. Biotechnol. 2. pp. 667-669.
  12. van Kempen. R, ten Have, C C R, Meijer. S C F, Mulder. J W and Duin. J O J (2001). SHARON process evaluated for improved wastewater treatment plant nitrogen effluent quality. Wat Sci Tech, 52(4), pp. 55-62.
  13. van Dongen, U, Jetten, M C M and van Loosdrecht, M C M (2001). The SHARON-ANAMMOX process for the treatment of ammonium rich wastewater. Wat Sci Tech, 44(1), 153-160.
  14. van Loosdrecht, M C M. and Jetten, M C M. (1998). Microbiological conversions in nitrogen removal. Wat Sci Tech, 38, pp. 1-7.
  15. Yang, Q, Liu, X H, Peng, Y Z, Wang, S Y, Sun, H W and Gu, S B (2009). Advanced Nitrogen Removal via Nitrite from Municipal Wastewater in a Pilot-plant Sequencing Batch Reactor. Wat Sci Tech, 59(12), pp. 2371-2377. https://doi.org/10.2166/wst.2009.304