Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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A Study on the Degradation of PAH in Organic and Aqueous Phases by Ozone

다환방향족탄화수소에 대한 오존처리의 방법에 관한 연구

  • Choi, Young Ik (Department of Environmental Engineering, Silla University) ;
  • Son, Hee-Jong (Water Quality Research Institute, Waterworks Headquarter) ;
  • Jung, Chul-Woo (Department of Environmental Engineering, Silla University)
  • 최영익 (신라대학교 환경공학과) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 정철우 (울산산업진흥TP 전략산업기획단)
  • Received : 2006.08.10
  • Accepted : 2006.10.23
  • Published : 2006.11.30
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Abstract

Pyrene of natural and anthropogenic sources is one of the toxic, mutagenic polycyclic aromatic hydrocarbons (PAHs) listed as priority pollutants. The objectives of this research are to break down pyrene by using ozonation, identify the intermediates and byproducts of pyrene, and test the biodegradability of intermediates and byproducts of pyrene in the aqueous phase. Since pyrene is non-polar, hexane was chosen as a solvent to effectively dissolve pyrene. Pyrene solutions were treated with ozone, as it has high oxidation capacity and electrophilic characteristic. After different ozonation pretreatment times (2, 3, and 10 minutes), intermediates of pyrene in the form of yellowish solid were collected from the hexane solution using a centrifuge. They were identified by gas chromatography/mass spectrometer (GC/MS). $BOD_5$, COD, and E-coli toxicity tests have been performed to assess the ozonation products.

대부분의 polycyclic aromatic hydrocarbons (PAHs) 은 최우선 오염물질로 간주되어지고 있는 매우 유독한 물질이다. Pyrene은 PAHs들 중에서도 그 유독성은 가히 심각하다. 그리고 Pyrene과 다른 PAHs화합물들은 물에 잘 용해가 되지 않는 소수성 성질을 가지고 있어 화학적 또는 생물학적 분해가 용이하지 않다. 이러한 성질을 극복하기 위하여 본 연구에서는 Pyrene을 대표 물질로 하여 2 단계 오존처리를 하였다. 첫 단계에서 Pyrene을 무극성인 핵산 용매에 대량 (2000 mg/L) 으로 녹여 오존처리를 하였다. 이때 Pyrene은 극성 분자들, 즉 알콜과 알데하이드 그리고 에시드 기능기를 가지는 물질들로 변화되었으며 이 변화된 물질들을 다시 극성 용매, 물에 녹여 두 번째 오존처리를 하였다. 두 번째 오존 처리된 Pyrene의 부산물들과 중간생성물들은 생물학적 처리로 가능한지 연구되어지기 위해 $BOD_5$와 COD 그리고 E-coli toxicity tests가 이루어졌다. 그 결과 오존 처리된 Pyrene은 유독하지도 않았고 Pyrene의 부산물들과 중간생성물들은 생물학적 처리가 용이하여졌다. Gas chromatograph (GC) 분석을 통해 Pyrene의 부산물들과 중간생성물들을 밝혀내었다. 이 연구를 토대로 소수성 성질을 가지는 많은 방향족 물질들을 처리하기가 매우 용이해졌다.

Keywords

References

  1. APHA, AWWA, WPCF (WEF) Standard Methods for the Examination of Water and Wastewater: Part 4500, Ozone (residual), proposed, Indigo Colormetric Method, 18th ed., American Public Health Association, Washington (1992a)
  2. APHA, AWWA, WPCF (WEF) Standard Methods for the Examination of Water and Wastewater: Part 5210, Biochemical Oxygen Demand (BOD), 18th ed., American Publish Health Association, Washington (1992b)
  3. Bailey, P., Ozonation in Organic Chemistry, Academic Press, New York VII Chapters III-V (1982)
  4. Beltran, F. J., Ovejero, G., Encinar, J. M. and Rivas, J., Oxidation of Polynuclear Aromatic Hydrocarbons in Water. 1, Ozonation. Ind Eng. Chem. Res., 34, pp. 1595-1606 (1995)
  5. Danheux, C., Hanoteau, L., Martin, R. H. and Van Binst, G., Beitrage zur Kenntnis des Pyrens und Seiner Derivate, Bull. Soc. Chim. Belg., 72, pp. 289-290 (1963) https://doi.org/10.1002/bscb.19630720313
  6. Field, J. A., de Jong, E., Costa, G. F. and de Bont, J. A. M., Biodegradation of Polycyclic Aromatic Hydrocarbons by New Isolates of White Rot Fungi, Appl. Environ. Microbiol., 58(7), pp. 2219-2226 (1992)
  7. Freshour, A. R., Mawhinney, S. and Bhattacharyya, D., Two-phase Ozonation of Hazardous Organics in Single and Multicomponent Systems, Wat. Res., 30(9), pp. 1949-1958 (1996) https://doi.org/10.1016/0043-1354(95)00328-2
  8. Haapea, P. and Tuhkanen, T., Integrated Treatment of PAH Contaminated Soil by Soil Washing, Ozonation and Biological Treatment, Journal of Hazardous Materials, 136(2), pp. 244-250 (2006) https://doi.org/10.1016/j.jhazmat.2005.12.033
  9. HACH DR/2000 Spectrophotometer Handbook: ToxTrak Toxicity Test, 665, Hach Company, Loveland, Colorado, (1988-1995b)
  10. Heitkamp, M. A. and Cerniglia, C. E., Polycyclic Aromatic Hydrocarbon Degradation by a Mycobacterium sp. In Microcosms Containing Sediment and Water from Pristine Ecosystems, Appl. Environ. Microbiol., 55(8), pp. 1968-1973 (1989)
  11. Hong, A. and Chao, J. C., A Polar-Nonpolar, Acetic Acid/Heptane, Solvent Medium for Degradation of Pyrene by Ozone, Ind. Eng. Chem. Res., 43, pp. 7710-7715 (2004) https://doi.org/10.1021/ie049490k
  12. Kornmueller, A., Cuno, M. and Wiesmann, U., Selective Ozonation of Polycyclic Aromatic Hydrocarbons in Oil/water-emulsions, Wat. Sci. Tech., 35(4), pp. 57-64 (1997)
  13. Oyler, A. R., Liukkonen, R. 1., Lukasewycz, M. K., Cox, D. A., Peake, D. A. and Carlson, R. M., Implications of Treating Water Containing Polynuclear Aromatic Hydrocarbons with Chlorine: A Gas Chromatographic Mass Spectrometric Study, Environmental Health Perspectives., 46, pp. 73-86 (1982) https://doi.org/10.2307/3429424
  14. Scott, J. P and Ollis, D. F., Integration of Chemical and Biological Oxidation Processes for Water Treatment: Review and recommendations, Environ. Prog., 14(2), pp. 88-103 (1995) https://doi.org/10.1002/ep.670140212
  15. Stich, F. A. and Bhattacharyya, D., Ozonolysis of Organic Compounds in a Two-phase Fluorocarbon-water system, Environmental Progress, 6(4), pp. 224-229 (1987) https://doi.org/10.1002/ep.670060408
  16. Sturrock, M. G. and Duncan, R. A., The Ozonation of Pyrene: A Monomeric Monoozonide Formed in Polar Solvents, J. Org. Chem., 33, pp. 2149-2152 (1968) https://doi.org/10.1021/jo01269a112
  17. Yao, J., Huang, Z. and Masten, S. J., The Ozonation of Pyrene: Pathway and Product identification, Wat. Res., 32(10), pp. 3001-3012 (1998) https://doi.org/10.1016/S0043-1354(98)00056-6
  18. Zeng, Y., Hong, A. and Wavrek, D. A., Chemical-biological Treatment of Pyrene, Wat. Res., 34(4), pp. 1157-1172 (1999) https://doi.org/10.1016/S0043-1354(99)00270-5