Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Nitrogen Removal Performance at Various DO Concentrations in the Bioreactor Packed with Submerged Cilia Media and Granular Sulfur

DO농도 조절에 따른 황 충전 섬모상 반응조의 질소제거 성능 변화

  • Received : 2006.01.11
  • Accepted : 2006.06.14
  • Published : 2006.08.15
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Abstract

In this study, the major operating factors in SND(simultaneous nitrification and denitrification) using bioreactor packed with submerged cilia media and granular sulfur such as variation of nitrification rate, organic matter removal efficiency and denitrification efficiency in different DO concentration were mainly evaluated. Synthetic wastewater and actual sewage were used as influent wastewater. Experiment with synthetic wastewater as influent wastewater was divided into three phases with the adjustment of DO concentration. As the results, nitrification efficiency and T-N removal efficiency in the Phase 3(DO 1.0~2.0 mg/L) were 99% and 52.3%, which is significantly greater than those in other two phases. Also, loading rate and denitrification efficiency of SCPGS(Submerged Cilia media Packed with Granular Sulfur) were calculated as $0.44kg\;NO_3^--N/m^3-day$ and 50%, respectively. On the other hand, nitrification rate was decreased from 99% to 64% according to the DO concentration with the variation from 3.0~3.5 mg/L(phase1) to 0.4~0.6mg/L(phase2). Although the nitrification rate was decreased in 64% according to the variation of the DO concentration, T-N removal rate was rapidly increased to 49% by increasing of the denitrification efficiency. Experiment with actual sewage as influent wastewater was carried out to evaluate efficiency of SCPGS in real operation condition of full-scale sewage water treatment plant. At the time, T-N removal rate in this experiment and full-scale wastewater treatment plants were given by 43% and 20%, respectively. The above results indicate that SCPGS can be used as an advanced treatment process for economical efficiency considered.

Keywords

References

  1. 이희자, 배재호, 조광명 (2000) 메탄산화균을 이용한 질산화와 탈질의 동시수행 및 반응기작, 대한환경공학회지, 22 (8) pp. 1447 1457
  2. Koenig, A. and Liu, L.H. (2001) Kinetic Model of Autotrophic Denitrification in Sulfur Packed-Bed Reactor, Water Res., 35(8), pp. 1969-1978 https://doi.org/10.1016/S0043-1354(00)00483-8
  3. Villaverds S., Encina P.A.G, Polanco F.F. (1997) Influence of pH over nitrifying biofilm activity in submerged biofilters, Wat. Res., 31, pp. 1180-1186 https://doi.org/10.1016/S0043-1354(96)00376-4
  4. Driscoll, T.C. and Bisogni, J.J. (1978) The use of sulfur and sulfide in packed bed reactors for autotrophic denitrification, J. WPCF., March, pp. 569-577
  5. APHA, AWWA, and WEF (1998) Standard Methods for the Examination of Water and Wastewater, 20th edition, Washington DC, USA
  6. 환경부 (2004) 수질환경오염공정시험법, 환경부고시 제2004-188호
  7. Hyung Seok Yoo, Kyu Hong Ahn., Hyung Jib Lee, Kwang Hwan Lee, Young Jung Kwak and Kyung Guen Song (1999) Nitrogen removal from synthetic wastewater by simultaneous nitrification and denitrification(SND) via nitrite in an intermittently-aerated reactor, Wat. Res., 33(1), pp. 145-154 https://doi.org/10.1016/S0043-1354(98)00159-6
  8. Beijerinck, M.W. (1920) Chemosynthesis at denitrification with sulfur as source of energy, Proceedings Amsterdam Academy of Science, 22, February 28, pp. 898-908
  9. Hoor, T.A. (1981) Cell yield and bioenergetics of Thiomicrospira denitrificans compared with Thiobacillus denitrificans, Antonie Van Leeuwenhoek, 47(3), pp. 231- 243 https://doi.org/10.1007/BF00403394
  10. Lampe, D.G. and T.C. Zhang, (1996) Evaluation of sulfur based autotrophic denitrification, Proceedings of the 1996 HSRC/WERC Joint Conference on the Environment, Albuquerque, New Mexico, May 21
  11. Justin, P. and Kelly, D.P. (1978) Growth kinetics of Thiobacillus denitrificans in anaerobic and aerobic chemostat culture, J. Gen. Microbiol., 107, pp. 123-130 https://doi.org/10.1099/00221287-107-1-123
  12. Zhang, T.C. and Shan, J. (1999) In situ septic tank effluent denitrification using a sulfurlimestone process, Wat. Env. Res., 71, pp. 1283-1291 https://doi.org/10.2175/106143096X122447
  13. Mann, L.D., Focht, D.D., Josep, H.A. and Stolzy, L.H. (1972) Increased denitrification in soils by addition of sulfur as an energy source, J. Environ. Qual., 1, p. 329 https://doi.org/10.2134/jeq1972.00472425000100030030x
  14. Batchelor, B. and Lawrence, A.W. (1978) A Kinetic Model for Autotrophic Denitrification using Elemental Sulfur, Water Res., 12, pp. 1075-1084 https://doi.org/10.1016/0043-1354(78)90053-2
  15. 추인준 (2001) 황 충전 섬모상 담체를 이용한 질산화∙탈질 동시수행, 인하대학교 석사학위 논문