Effects of the Variation of Aeration Time in Sequencing Batch Reactor (SBR) (1) - Nutrient Removal

Sequencing Batch Reactor (SBR)에서 포기시간 변경에 따른 영향 (1) - 영양염류 제거

  • Jeong, No-Sung (Department of Environmental Science, Catholic University of Daegu) ;
  • Park, Young-Seek (Department of Health & Environment, Daegu University) ;
  • Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
  • 정노성 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 보건과학부) ;
  • 김동석 (대구가톨릭대학교 환경과학과)
  • Received : 2010.08.24
  • Accepted : 2010.09.25
  • Published : 2011.01.31


The effect of the variation of aeration time on the removal of organics, nitrogen and phosphorus using synthetic wastewater was investigated in sequencing batch reactors (SBRs) which included DNPAOs and DNGAOs. The cycling times in four SBRs were adjusted to 12 hours and then included different aerobic times as 1 hr, 2.5 hr, 4 hr and 5.5 hr, respectively. Four SBR systems have been operated and investigated for over 40 days. Average TOC removal efficiencies were about 71 % in all SBRs. The $NH_4^+$-N removal efficiency was increased as the increase of aeration time. After changing aeration time, the total nitrogen removal efficiencies of SBRs were shown as 35 %, 85 %, 75 % and 65 %, respectively. Higher phosphorus release and uptake were occurred as the decrease of the aeration time. After all, the overall phosphorus removal efficiency decreased and the deterioration of phosphorus removal was occurred when aeration time was over 4 hr. Denitrification in aerobic conditions was observed, which showed the presence of DNPAOs and DNGAOs. In batch experiments, PAOs were shown as the most important microorganisms for the phosphorus removal in this experiment, and the role of DNGAOs was higher than that of DNAPOs for the nitrogen removal.


SBR;Aeration time;Nutrient removal;PAOs;DNPAOs;DNGAOS;Batch experiment


  1. 김동석, 박영식, 2010, SBR과 SBBR에서 유입 인 농도 감소에 따른 인과 질소의 제거 특성 변화, 한국환경과학회지, 19(4), 483-490.
  2. 김홍태, 김경호, 2007, 무산소조 $NO_3^{-}-N$ 농도 변화에 따른 DNPAOs에 의한 인 제거, 한국환경과학회지, 16(11), 1271-1277.
  3. 박영식, 김동석, 2007, $(AO)_2$ SBBR에서 운전주기에 따른 질소와 인 제거 특성 비교, 한국환경과학회지, 16(1), 45-53.
  4. 박영식, 정노성, 김동석, 2007, $A_2O$ SBBR에서 비포기 시간 배분에 따른 질소-인 제거 특성 비교, 한국환경과학회지, 16(7), 311-319.
  5. Artan, N., Tasli, R., Ozgur, N., Orhon, D., 1998, The Fate of phosphate under anoxic conditions in biological nutrient removal activated sludge systems, Biotechnology Letters, 20(11), 1085-1090.
  6. Bernat, C., Wojnowska-Baryla, I., 2007, Carbon source in aerobic denitrification, Biochem. Eng. J., 36, 116-122.
  7. Brdjanovic, D., Slamet, A., van Loosdrecht, M. C. M., Hooijmans, C. M., Alaerts, G. J., Heijnen, J. J., 1998, Impact of excess aeration on biological phosphorus removal from wastewater, Wat. Res., 32, 200-208.
  8. Carvalho, G., Lemos, P. C., Oehmen, A., Reis, A. A. M., 2007, Denitrifying Phosphoris removal : Linking the process performance with the microbial community structure, Wat. Res., 41, 4383-4396.
  9. Chuang, S. H., Ouyang, C. F., Wang, Y. B., 1996, Kinetic competition between phosphorus release and denitrification on sludge under anoxic condition, Wat. Res., 30(12), 2961-2968.
  10. Dawson, R. N., Murphy, K. L., 1972, The temperature dependency of biological denitrification, Wat. Res., 6, 71-83.
  11. Eaton, A. D., Clesceri, L. S., Greenberg, A. E., 1995, Standard Methods for the Examination of Water and Wastewater, 19th ed., APHA, NW, Washington.
  12. EPA, 1993, Process design manual of nitrogen control, EPA 625/r-93/010, Cincinnati, Ohio.
  13. Jeon, C. O., Park, J. M., 2000, Enhanced biological phosphorus removal in a sequencing batch reactor supplied with glucose as a sole carbon source, Wat. Res., 34(7), 2160-2170.
  14. Kim, Y. G., Cho, I. H., 2006, 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.
  15. Kishida, N., Tsuneda, S., Sudo, R., 2006, Anaerobic/oxic/anoxic granular sludge process as an effective nutrient removal process utilizing denitrifying phosphate-accumulating organisms, Wat. Res., 40, 2303-2310.
  16. Oehmen, A., Saunders, A. M., Vives, M. T., Yuan, Z., Keller, J., 2006, 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.
  17. Saito, T., Brdjanovic, D., van Loosdrecht, M. C. M, 2004, Effect of nitrite on phsphate uptake by phosphate accumulating organisms, Wat. Res, 38, 3760-3768.
  18. Shi, H. P., Lee, C. M., 2006, Combining anoxic denitrifying ability with aerobic-anoxic phosphorusremoval examinations to screen denitrifying phosphorus-removing bacteria, International Biodeterioration & Biodegradation, 57, 121-128.