DOI QR코드

DOI QR Code

Nitrogen and Phosphorus Removal Characteristics by the Variation of Aeration Time in SBR

SBR에서 포기기간 변경에 따른 질소.인 제거 특성

  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 보건과학부)
  • Published : 2009.04.30

Abstract

Laboratory scale experiments were conducted to investigate the removal characteristics of nitrogen and phosphorus by the variation of aeration time in four sequencing batch reactors (SBRs). In R1 which has the shortest aeration time as 1 h, MLVSS concentration in reactor decreased by the wash-out of biomass because of the poor sedimentation. The TOC removal efficiencies were almost similar in 3 reactors except R1. At the low aeration time as 1 h, the nitrification was severely inhibited by the deficiency of oxygen. ${NH_4}^+$-N removal efficiency was decreased by the decrease of aeration time. At the aeration time over 2 h, the phosphorus removal efficiency was not affected by the variation of aeration time. The nitrification was inhibited but the phosphorus release and uptake was not inhibited by the decrease of low aeration time. Therefore, we can see that the phosphorus removal microorganisms are superior to nitrification microorganisms in oxygen utilization.

References

  1. EPA US : Process design manual of nitrogen control. EPA 625/r-93/010, Cincinnati, Ohio, 1993
  2. Kim, Y. G. and Cho, L H. : A study on the removal of nitrogen and phosphorus of municipal wastewater with biological coated media, Korean Journal of Environmental Health, 32(1), 27-35, 2006
  3. Fux, c., Boehler, M., Huber, P., Brunner, I and Siegrist, H. : Biological treatment of ammonium-rich wastewater by partial nitritation and subsequent anaerobic ammonium oxidation (anammox) in a pilot plant. Journal of Biotechnology, 99, 295-306, 2002 https://doi.org/10.1016/S0168-1656(02)00220-1
  4. Anh, Y. H. : Sustainable nitrogen elimination biotechnologies: A review. Process Biochemistry, 41, 1709-1721, 2006 https://doi.org/10.1016/j.procbio.2006.03.033
  5. Lee, J., Lee, H. W., Lee, S. Y., Kwon, S., Choi, Band Park, Y. K : Characteristics of biological nitrogen removal considering autotrophic denitrification and its microbial community. Journal of Korean Society of Environmental Engineering, 25(11), 1352-1358, 2003
  6. Oehmen, A., Saunders, A, M., Vives, M. T., Yuan, Z. and Keller, J. : Competition between polyphosphate and glycogen accumulating organisms in enhanced biological phosphorus removal systems with acetate and propionate as carbon sources, Journal of Biotechnology, 123, 22-32, 2006 https://doi.org/10.1016/j.jbiotec.2005.10.009
  7. Seviour, R. J., Mino, T, and Onuki, M, : The microbiology of biological phosphorus removal in activated sludge systems. FEMS Microbiology Reviews, 27,99-127, 2003 https://doi.org/10.1016/S0168-6445(03)00021-4
  8. Jeon, C. O. and Park, J, M. : Enhanced biological phosphorus removal in a sequencing batch reactor supplied with glucose as a sole carbon source. Water Research, 34(7), 2160-2170, 2000 https://doi.org/10.1016/S0043-1354(99)00383-8
  9. Kim, D. S. and Park, Y. S. : Nutrient removal characteristics by the addition ratio of BNR sludge in SBR. Korean Journal of Environmental Health, 34(1), 76-85, 2008 https://doi.org/10.5668/JEHS.2008.34.1.076
  10. Jun, B. H., Kim, D. H., Choi, E. H., Bae, H. and Kim, C. W, : Control of SBR operation for piggery wastewater treatment with DO and ORP, Journal of Korean Society on Water Quality, 18(5), 545-551, 2002
  11. Lee, K Y., Choi, C. S., Lee, J. M, and Lee, T. : Control of the aeration and non-aeration periods by the utilization of dissolved oxygen profile at a sequence batch reactor (SBR), Journal of Korean Society of Environmental Engineering, 25(8), 1032-1037, 2003
  12. Kim, J, R., Kim, S. H., Lee, S. H., Kim, C. W. and Woo, H. J. : Applicability of time series analysis and genetic algorithm for predicting behaviors of oxidation-reduction potential in sequencing batch reactor. Journal of Korean Society of Environmental Engineering, 25(8), 970-976, 2003
  13. Standard Methods for the Examination of Water and Wastewater. 19th Ed., American Public Health Association, American Water Works Association, Water Environment Federation, 1995
  14. Hu, L, Wang, J., Wen, X. and Qian, Y. : Study on performance characteristics of SBR under limited dissolved oxygen. Process Biochemistry, 40, 293-296, 2005 https://doi.org/10.1016/j.procbio.2004.01.015
  15. Park, Y. S., Jeong, N, S. and Kim, D, S, : A comparison of Nand P removal characteristics by the variation of non-aeartion time un A20 SBBR. Journal of Environmental Sciences, 16(1), 813-821, 2007 https://doi.org/10.5322/JES.2007.16.7.813
  16. Kishida, N., Tsuneda, S, and Sudo, R, : Anaerobic/oxic/anoxic granular sludge process as an effective nutrient removal process utilizing denitrifying phosphate-accumulating organisms, Water Research, 40, 2303-2310, 2006 https://doi.org/10.1016/j.watres.2006.04.037