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MBR 단일 반응조에서 용존산소 농도에 따른 동시 질산화-탈질반응(SND)의 영향

Effects of DO concentration on Simultaneous Nitrification and Denitrification(SND) in a Membrane Bioreactor(MBR)

  • 박노백 (농촌진흥청 국립농업과학원) ;
  • 최우영 (충북대학교 환경공학과) ;
  • 윤애화 (충북대학교 환경공학과) ;
  • 전항배 (충북대학교 환경공학과)
  • Park, Noh-Back (National Academy of Agricultural Science, Rural Development Administration) ;
  • Choi, Woo-Yung (Department of Environmental Engineering, Chungbuk National University) ;
  • Yoon, Ae-Hwa (Department of Environmental Engineering, Chungbuk National University) ;
  • Jun, Hang-Bae (Department of Environmental Engineering, Chungbuk National University)
  • 발행 : 2009.12.30

초록

In this study, simultaneous nitrification and denitrification (SND) from synthetic wastewater were performed to evaluate dissolved oxygen(DO) effects on chemical oxygen demand(COD) and nitrogen removal in a single membarne bio-reactor(MBR). DO levels in MBR at Run 1, 2, and 3 were 1.9~2.2, 1.3~1.6, and 0.7~1.0 mg/L, respectively. Experimental results indicated that DO had an important factor to affect COD and total nitrogen(TN) removal. SND were able to be accomplished in the continuous-aeration MBR by controlling ambient DO concentration. It is postulated that, because of the oxygen diffusion limitation, an anoxic micro-zone was formed inside the flocs where the denitrification might occur. From the results of this study, 96% of COD could be removed at DO of 0.7mg/L. At run 2 72.92% of nitrogen was removed by the mechanisms of SND (7.75mg-TN/L in effluent). In this study, SND was successfully occurred in a MBR due to high MLSS that could help to form anoxic zone inside microbial floc at bulk DO concentrations of 1.3~1.6mg/L.

키워드

참고문헌

  1. Park, J. I. and Lee, T. J. (2007) A study of the simultaneous nitrification and denitrification in a single bioreactor, J. Kor. Soc, Enviro. Engin, 29(2), 220-228
  2. Lee, S. H., Park, N. B., Park, S. M. and Jun, H. B. (2005) Effect on nitrogen removal in the intermittent aeration system with the anaerobic archaea added, J. Kor. Soc. Environ. Engin, 27(11), 1186-1192
  3. Metcalf & Eddy, Inc. (2004) Wastewater engineering; Treatment and reuse, 4th ed., McFrow-Hill, New York, p.759-798
  4. Van Huyssteen, J. A., Barnard, J. L. and Hendriksz J. (1990) The olifantsfontein nutrient removal plant, Wat. Sci. Tech., 22, 1-8
  5. Rittman, B. E. and Langeland, W. E. (1985) Simultaneous denitrification with nitrification in singlechannel oxidation ditches, J. Wat. Poll. cont. Fed., 57, 300
  6. Trivedi, H. and Heinen, N. (2000) Simultaneous nitrification/denitrification by monitoring NADH fluorescene in activated sludge, Proceedings of the Facility Operations II; Innovative Technology forum; 73d Annual Conference, Wat. Environ. Fed, Anaheim, Anaheim, CA
  7. Jeff, A. R., Paul, M. S. and Prakash, N. M. (2000) Application of the membrane biological reactor system for combined sanitary and industrial wastewater treatment, Inter. Biode. & Biodegr, 46, 37-42 https://doi.org/10.1016/S0964-8305(00)00058-5
  8. Sun, D. D., Khor, S. L., Hay, C. T. and Leckie, L. O. (2007) Impact of prolonged sludge retention time on the performance of a submerged membrane bioreactor, Desalination, 208(1-3), 101-112 https://doi.org/10.1016/j.desal.2006.04.076
  9. Chen, Z., Hu, D., Ren, N. and Zhang, Z. P. (2008) Simultaneous removal of organic substances and nitrogen in pilot-scale submerged membrane bioreactors treating digested traditional Chinese medicine wastewater, Inter. Biode. & Biodegr, 62, 250-256 https://doi.org/10.1016/j.ibiod.2008.01.010
  10. Pochana, K. and Keller, J. (1999) Study of factors affecting simultaneous nitrification and denitrification( SND), Wat. Sci. Tech., 39(6), 61-68 https://doi.org/10.1016/S0273-1223(99)00123-7
  11. Munch, E. V., Lant, L. and Keller, J. (1996) Simultaneous nitrification and denitrification in benchscale sequencing batch reactors, Water Res., 30(2), 277-285 https://doi.org/10.1016/0043-1354(95)00174-3
  12. Yeon, K. M., Park, J. S., Lee, C. H. and Kim, S. M. (2005) Membrane coupled high-performance compact reactor: A new MBR system for advanced wastewater treatment, Water Res., 39, 1954-7961 https://doi.org/10.1016/j.watres.2005.03.006
  13. Kraume, M., Bracklow, U., Vocks, M. and Drews, A. (2005) Nutrients removal in MBRs for municipal wastewater treatment, Wat. Sci. Tech., 51(6-7), 391-402
  14. Guo, H. Y., Zhou, J. T., Su, J. and Zhang, Z. Y. (2005) Integration of nitrification and denitrification in airlift bioreactor, J. of Biochem. Eng., 23, 57-62 https://doi.org/10.1016/j.bej.2004.05.010
  15. Turk, O. and Mavinic, D. S. (1987) Benefits of using selective-inhibition to remove nitrogen frhighly nitrogenous wastes, Environ. Technol. Lett., 8(9), 419-426 https://doi.org/10.1080/09593338709384500
  16. Chang, Y. J. and Tseng, S. K. (1999) A novel double-membrane system for simultaneous nitrification and denitrification in a single tank, Lett. Appl. Microbiol., 28(6), 453-456 https://doi.org/10.1046/j.1365-2672.1999.00546.x
  17. Collivignarelli, C. and Bertanza, G. (1999) Simultaneous nitrification denitrification process in activated sludge plants; performance and applicability, Wat. Sci. Tech., 40(4-5), 187-194 https://doi.org/10.1016/S0273-1223(99)00575-2
  18. APHA (1995) Standard methods for the examination of water and wastewater, America Public Health Association, Washington, D.C
  19. Qingjuan, M., Fenglin, Y., Lifen, L. and Fangang, M. (2008) Effect of COD/N ratio and DO concentration on simultaneous nitrification and denitrification in an airlift circulation membrane bioreactor, J. Env. Sci., 20, 933-939 https://doi.org/10.1016/S1001-0742(08)62189-0
  20. Schoberl, P. and Engel, H. (1964) Dar verhalten der nitrification kakterin gegenuber gelostem, Archiv Fur Mikrobiolgie., 48, 393-400 https://doi.org/10.1007/BF00405983
  21. Shengbing, H., Gang, X. and Baozhen, W. (2009) Factors affecting simultaneous nitrification and de-nitrification (SND) and its kinetics model in membrane bioreactor, J. of Hazar. Materi., 168(2-3), 704-710 https://doi.org/10.1016/j.jhazmat.2009.02.099
  22. Li, B. and Bishop, P. L. (2004) Micro-profiles of activated sludge floc determined using microelectrodes, Water Res., 38, 1248-1258 https://doi.org/10.1016/j.watres.2003.11.019
  23. Lee, W. T., Kang, S. and Shin, H. S. (2003) Sludge characteristics and their contribution to microfiltration in submerged membrane bioreactor, J. of Membrane Sci., 216, 217-227
  24. Randall, C. W. (1992) Design and retofit of wastewater treatment plants for biological nutrient removal, Technomic Pubilshing Co. Inc
  25. Jeill, O. and Joann. S. (1999) Oxygen inhibition of activated sludge denitrification, Water Res., 33(8), 1925-1937 https://doi.org/10.1016/S0043-1354(98)00365-0

피인용 문헌

  1. Nitrogen and Phosphorus Removal in Membrane Bio-Reactor (MBR) Using Simultaneous Nitrification and Denitrification (SND) vol.35, pp.10, 2013, https://doi.org/10.4491/KSEE.2013.35.10.724
  2. Characteristic of Mixing and DO Concentration Distribution in Aeration Tank by Microbubble Supply vol.17, pp.5, 2016, https://doi.org/10.5762/KAIS.2016.17.5.251