Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Effect of Ozone Oxidation on Biodegradability of Dissolved Organic Compounds in the Landfill Leachate

오존산화가 매립지 침출수내 용존성 유기화합물의 생분해도에 미치는 영향

  • Received : 2004.02.24
  • Accepted : 2004.10.25
  • Published : 2005.01.30
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Abstract

The effect of ozone oxidation on biodegradability of leachate was studied. Ozone oxidation process was used as pre-treatment process to enhance performance of biological process in treating landfill leachate. Optimum ozone dosing rate and contact time in this experiment was $160mg\;O_3/L$ hr and 45 minutes, respectively. Biodegradability was enhanced 5.08% by ozone oxidation. The ratio of ozone demand/DOC concentration was $0.049{\sim}0.091mg\;O_3/mg$ DOC. The increase of biodegradability depending on ozone dosing rate(D) and contact time(T) can be expressed as follows ; ${\Delta}E=0.00479{\cdot}D^{0.773}{\cdot}T^{0.800}$ The biodegradation rate of DOC was increased proportionally with the increase of ozone dosing rate and contact time irrespective of landfill site age. The increase of biodegradability by ozone addition was not satisfactory. It is hard to expect significant increase in biodegradability by ozone treatment only. Thus, it is evaluated that ozone oxidation can not increase biodegradability significantly in concentrated wastewater composed of complex organic compound such as leachate.

Keywords

References

  1. 신항식, 임재립, 고급산화법을 이용한 Trichloroethylene 함유 폐수의 처리(I) ($O_3/High\;pH,\;0_3/H_20_2$ 처리 중심으로), 대한환경공학회지, 17(II ), pp. 1079-1088 (1995)
  2. 이석헌, 박주석, 오존 이용 수처리 기술, 대한상수도학회지, 7(2), pp. 58-83 (1993)
  3. 이정식, 변종각, 조광명, 도시 쓰레기 매립지 침출수의 오존 처리, 한국폐기물학회지, 10(1), pp. 49-55 (1994)
  4. 정승현, 신현무, 정병곤, 매립연령에 따른 침출수 특성, 한국물환경 학회지, 19(6), pp. 623-633 (2003)
  5. 정용현, 정병곤, 이헌모, 정형숙, 양병수, SRT 변화에 따른 메탄생성균의 활성도에 관한 연구, 대한환경공학회지, 17(11), pp. 1133-1144 (1995)
  6. 허인량, 김영란, Fenton 산화와 완전혼합형 혐기성/호기성 고정 생물막 공정에 의한 매립지 침출수의 유기물 및 색도의 제거, 한국폐기물학회지, 13(2), pp. 121-128 (1997)
  7. 환경부, 수질오염공정시험방법 (1996)
  8. Adams, C. D., Scanlon, P. A., and Secrist, N. D., Oxidation and Biodegradability Enhancement of 1,4-Dioxane Using Hydrogen Peroxide and Ozone, Environ. Sci. Tech., 28(11), pp. 1812-1818 (1994) https://doi.org/10.1021/es00050a003
  9. APHA, AWWA, WPCF., Standard Methods for the Examination of Water and Wastewater 19th Ed., APHA, AWWA, WPCF (1995)
  10. Buys R. E., and Reynolads, T. D., Effect of Mean Cell Residence Time and Ozonation on Carbon Adsorption, Proc. of the 36th Ind. Waste Conf, Purdue Univ., Ann Arbor Science, pp. 29-35 (1981)
  11. Hungate, R. E., A Roll Tube Method for Cultivation of Strict Anaerobes, Method in Microbiology, 38, pp. 117-132 (1969)
  12. Medley, D. R., and Stover, E. L., Effects of Ozone on the Biodegradability of Biorefractory Pollutants, J. WPCF, 55(5), pp. 489-494 (1983)
  13. Ragle, N., Kissel, J., Ongerth, J. E., and Dewalle, F. B., Composition and Variability of Leachate from Recent and Aged Areas within a Municipal Landfill, Wat. Environ. Res., 67(2), pp. 238-243 (1995) https://doi.org/10.2175/106143095X131411
  14. Wu, J. J., Wu, C-C., Ma, H-W., and Chang, C-C., Treatment of Landfill Leachate by Ozone-based Advanced Oxidation Processes, Chemosphere, 54, pp. 997-1003 (2004) https://doi.org/10.1016/j.chemosphere.2003.10.006