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The Membrane Society of Korea (한국막학회)
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Membrane-Coupled Sequencing Batch Reactor System for the Advanced Treatment of Rural Village Sewage

막결합 연속회분식 반응기를 이용한 농촌마을 하수의 고도처리

  • Kim, Seung-Geon (Department of Chemical and Biological Engineering, Jeju National University) ;
  • Lee, Ho-Won (Department of Chemical and Biological Engineering, Jeju National University)
  • 김승건 (제주대학교 생명화학공학과) ;
  • 이호원 (제주대학교 생명화학공학과)
  • Received : 2014.01.05
  • Accepted : 2014.01.24
  • Published : 2014.02.28
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Abstract

A membrane-coupled sequencing batch reactor (MSBR) was used for the advanced treatment of rural village sewage which is very low C/N ratio. The effect of powdered activated carbon, aeration rate, and external organic material loadings on the treatment efficiency and filtration performance were investigated in sequencing batch reactor, in which a flat-sheet type microfiltration membrane with a pore size of $0.4{\mu}m$ was submerged. At the initial operation (within 54 days) MLSS concentration, and the removal efficiencies of COD, T-N, and T-P were increased with the increase of C/N ratio. After 89 days the removal efficiencies of COD, T-N, and T-P were 97.1%, 75.0%, and 48.3%, respectively. Suspended solid-free effluent was obtained by membrane filtration. The T-P removal was relatively low because of depending on the amount of excess sludge wasting. During the operation of MSBR with powdered activated carbon, the particle size of the sludge reduced by the increase of collision frequency and mixing intensity. In comparison with MSBR without powdered activated carbon, TMP of MSBR with that was significantly elevated.

C/N 비가 낮은 농촌마을 하수의 고도처리를 위하여 $0.4{\mu}m$의 세공크기를 갖고 있는 평막이 침지된 연속회분식 반응기를 사용하였다. 분말활성탄의 투입, 폭기량 및 유입 유기물 농도가 처리효율과 여과 성능에 미치는 영향을 조사하였다. 54일 이내의 조업 초기에서는 C/N 비가 증가할수록 COD, T-N 및 T-P의 제거율과 MLSS 농도는 증가하였다. 조업 89일 후의 COD, T-N 및 T-P의 제거율은 각각 97.1%, 75.0% 및 48.3%이었다. 막여과에 의해 처리수에서 SS는 검출되지 않았으며, T-P의 제거율이 낮게 나온 이유는 과잉의 슬러지를 배출하지 않았기 때문이다. 분말활성탄을 투여한 경우 조업이 진행됨에 따라 분말활성탄의 혼합강도와 충돌빈도가 증가하여 슬러지의 입자크기가 감소하였으며, 이로 인해 분말활성탄을 투여하지 않은 경우에 비해 TMP 상승이 크게 나타났다.

Keywords

References

  1. M. J. Park and D. S. Kim, "A study on the small sewerage system using SBR process", J. of the Environmental Sciences, 12(4), 427 (2003). https://doi.org/10.5322/JES.2003.12.4.427
  2. H. H. Cho and J. T. Kim, "Trends in the technology and market of membrane bioreactor (MBR) for wastewater treatment and reuse", Membrane Journal, 23(1), 24 (2013).
  3. K. Y. Kim, J. H. Kim, Y. H. Kim, and H. S. Kim, "The Effect of Coagulant on Filtration Performance in Submerged MBR System", Membrane Journal, 16(3), 182 (2006).
  4. S. G. Kim, H. W. Lee, and Y. J. Kang, "The effect of filling step on the removal efficiency and filtration performance in the operation of submerged membrane-coupled sequencing batch reactor", Membrane Journal, 21(3), 263 (2011).
  5. Y. K. Choi, O. S. Kwon, H. S. Park, and S. H. Noh, "Mechanism of Gel Layer Removal for Intermittent Aeration in the MBR Process", Membrane Journal, 16(3), 188 (2006).
  6. J. K. Shim and K. Y. Chung, "Application of Membrane Bioreactor in Water Treatment", NICE, 20(6), 721 (2002).
  7. S. G. Kim and H. W. Lee, "The effect of media on the removal efficiency and filtration performance in the submerged membrane-coupled sequencing batch reactor with media", Membrane Journal, 22(6), 450 (2012).
  8. B. C. Ma, "Effect of physicochemical characteristics of microbial flocs on Membrane Performance in Membrane-coupled Sequencing Batch Reactor with and without anoxic phase", M.S. Dissertation, Seoul National Univ., Seoul (2004).
  9. K. Y. Kim, J. H. Kim, Y. H. Kim, and H. S. Kim, "The Effect of Coagulant on Filtration Performance in Submerged MBR System", Membrane Journal, 16(3), 182 (2006).
  10. S. J. Kim, D. H. Lee, and H. S. Park, "Removal of Organic and Nutrients in Fish Market Wastewater using Sequencing Batch Reactor (SBR)", J. of Korean Society on Water Quality, 23(1), 46 (2007).
  11. J. Y. Han, "Removal Characteristics of Nitrogen and Phosphorus in Sewage by Change of Operating Conditions on SBR Process", M.S. Dissertation, Jeju National Univ., Jeju-si, Jeju Special Self- Governing Province (1998).
  12. APHA, "Standard Methods for the Examination of Water and Wastewater", 21th ed., Washington DC. (2005).
  13. Nagaoak H. and Kudo C., "Effect of loading rate and intermittent aeration cycle on nitrogen removal in membrane separation activated sludge process", Wat. Sci. Tech., 46(8), 119 (2002).
  14. H. W. Lee, S. G. Kim, and S. J. Khang, "The Effect of Operation Modes on Filtration Performance and Removal Efficiency in a Flat-Sheet Membrane- Coupled Sequencing Batch Reactor", J. of KSEE, 29(10), 1138 (2007).
  15. A. L. Lim and R. Bai, "Membrane fouling and cleaning in microfiltration of activated sludge wastewater", J. Membrane Sci., 216, 279 (2003). https://doi.org/10.1016/S0376-7388(03)00083-8
  16. H. S. Kim, H. Katayama, S. Takizawa, and S. Ohgaki, "Development of a microfilter separation system coupled with a high dose of powdered activated carbon for advanced water treatment", Desalination, 186, 215 (2005). https://doi.org/10.1016/j.desal.2005.06.004
  17. J. S. Kim, C. H. Lee, and I. S. Chang, "Effect of pump shear on the performance of a crossflow membrane bioreactor", Water Res., 35(9), 2137 (2001). https://doi.org/10.1016/S0043-1354(00)00495-4