Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지

Nitrogen and Phosphorus Removal in Domestic Wastewater using SBR Process with Flow Changing Continuous Feed and Cyclic Draw

교대연속유입식 SBR 공정을 이용한 하수중의 질소 및 인 제거

  • Seo, In-seok (International Water and Wastewater Research Center, KOWACO) ;
  • Kim, Hong-suck (International Water and Wastewater Research Center, KOWACO) ;
  • Kim, Youn-kwon (International Water and Wastewater Research Center, KOWACO) ;
  • Kim, Ji-yeon (International Water and Wastewater Research Center, KOWACO)
  • 서인석 (한국수자원공사 수자원연구원 국제상하수도연구소) ;
  • 김홍석 (한국수자원공사 수자원연구원 국제상하수도연구소) ;
  • 김연권 (한국수자원공사 수자원연구원 국제상하수도연구소) ;
  • 김지연 (한국수자원공사 수자원연구원 국제상하수도연구소)
  • Received : 2005.04.11
  • Accepted : 2006.01.11
  • Published : 2006.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

A continuous feed and cyclic draw SBR process was developed to overcome flow rate fluctuation and to maximize organic matters utilization efficiency for nitrogen and phosphorus removal. The developed SBR process was operated with two parallel reactors. Influent was supplied to one reactor which was not obligately aerated. At the same time, the other reactor was just aerated without supplying influent. In addition this mode was changed periodically. Cycle time was 6hr and aeration time ratio($t_{aer}/t_{total}$) was 0.33, respectively. $COD_{cr}$ and SS removal efficiencies of 95% or higher were achieved. Nitrogen removal was so greatly influenced by influent $COD_{cr}/T-N$ ratio. At influent $COD_{cr}/T-N$ ratio of 5.7, removal efficiencies of ammonia-N, T-N and T-P were 96%, 78% and 55%, respectively. Influent $COD_{cr}/T-N$ of 4 or higher ratio was necessary to achieve 60% or higher nitrogen removal. Organic matters of influent was efficiently utilized in denitrification reaction and consumed COD has a good correlation with removed T-N(about 6.5 mgCOD/mgTN). Continuous feed and cyclic draw SBR process could be one of alternative processes for the removal of nutrients in rural area where $COD_{cr}/T-N$ ratio was low and fluctuation of flow rate was severe.

Keywords

References

  1. 김홍태, 박창광, 신석우, SBR 에서의 ORP를 이용한 반응기 최적화, 한국물환경학회지, 18(6), pp. 613-620 (2000)
  2. APHA, AWWA and WEF, Standard Methods for the Examination of water and wastewater, 19th Ed., Washington DC. (1995)
  3. Coelho, M. A. Z., Russo, C. and Araujo, O. Q. F., Optimization of a Sequencing Batch Reactor for Biological Nitrogen Removal, Wat. Res., 34(10), pp. 2809-2817 (2000) https://doi.org/10.1016/S0043-1354(00)00010-5
  4. Corominas, L., Sin, G., Puig, S., Traore, A., Balaguer, M., Colprim, J. and Vanrolleghem, P. A, model-based Evaluation of an On-line Control Strategy for SBRs Based on OUR and ORP Measurements, Proceedings of the 2nd IWA Conference on Instrumentation, Control and Automation, 1, pp. 359-367 (2005)
  5. Hamamoto, Y., Tabata, S. and Okubom, Y., Development of the Intermittent Cyclic Process from Simultaneous Nitrogen and Phosphorus Removal, Wat. Sci. Tech., 35( 1), pp. 145-152 (1995)
  6. Hascoet, M. C., Florentz, M. and Granger, P., Biological Aspects of Enhanced Biological Phosphorus Removal from Wastewater, Wat. Sci. Tech., 17, pp. 271-280 (1985) https://doi.org/10.2166/wst.1985.0022
  7. Kishida, N., Kim, J. H., Chem, M., Sasaki, H. and Sudo, R., Effectiveness of Oxidation-reduction Potential and pH as Monitoring and Control Parameters for Nitrogen Removal in Swine Wastewater Treatment by Sequencing Batch Reactors, J of Bioscience and Bioengineering, 96(3), pp. 285-290 (2003) https://doi.org/10.1016/S1389-1723(03)80195-0
  8. MetCalf & Eddy, Wastewater engineering, Mcgraw-Hill, pp. 519-544 (2003)
  9. Nyberg, U., Aspegren, H., Andersson, B., Jansen, J. la C. and Villadsen, I. S., Full-Scale Application of Nitrogen Removal with Methanol as Carbon Source, Wat. Sci. Tech., 26(5-6), pp. 1077-1086 (1992) https://doi.org/10.1021/es50002a004
  10. Randall, C. W., Barnard, J. L. and Stensel, H. D., Design and Retrofit of Wastewater Treatment Plants for Biological Nutrient Removal, Technomic Publishing Co., Inc pp. 25-78 (1992)
  11. Sasaki, K., Yamamoto, Y., Tsumura, K., Hatsumata, S. and Tatewaki, M., Simultaneous Removal of Nitrogen and Phosphorus in Intermittently Aerated 2-Tank Activated Sludge Process Using DO and ORP bending Point Control, Wat. Sci. Tech., 28(11-12), pp. 513-521 (1993)
  12. U.S. EPA, Wastewater Technology Fact Sheet: Sequencing Batch Reactors, EPA 932-F-99-073 (1999)
  13. Yu, R.-F., Liaw, S.-L., Chang, C.-N., Lu, H.-J. and Cheng, W.-Y., Monitoring and Control On-Line ORP on the Continuous Flow Activated Sludge Batch Reactor System, Wat. Sci. Tech., 35(1), pp. 57-66 (1997)
  14. Yu, R,-F., Liaw, S.-L. and Chang, C.-N., Applying Real-time Control to Enhance of Introgen Removal in the Continuous-Flow SBR System, Wat. Res., 38(3), pp. 271-280 (1998)