• A Study of Efficient Removal of 2-Methylisoborneol and Geosmin by Pulsed Ultraviolet and Ultrasound
  • Han, Jonghun;Hur, Jiyong;Kim, Kangwook;Lee, Junyoung;Park, Wonseok;Lee, Jongyeol;Her, Namguk;
  • Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon;Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon;Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon;Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon;Beautiful Environmental Construction Co., Ltd.;Beautiful Environmental Construction Co., Ltd.;Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon;
  • 효율적인 2-Methylisoborneol, Geosmin의 제거를 위한 Pulsed UV 공정과 Ultrasound 공정의 비교 연구
  • 한종훈;허지용;김강욱;이준영;박원석;이종열;허남국;
  • 육군3사관학교;육군3사관학교;육군3사관학교;육군3사관학교;아름다운환경건설;아름다운환경건설;육군3사관학교;
Abstract
The degradation of off-flavors which is 2-Methylisoborneol (2-MIB) and geosmin by means of ultrasound (US) and pulsed ultraviolet (PUV) irradiation and its combination with catalyst (wire mesh, wire mesh coated TiO2, and TiO2) and additive (H2O2) were investigated via water system. A combination treatment of TiO2 and H2O2 heterogeneity with US (24 kHz) and PUV (6000 W) has shown improved results in destroying 2-MIB and geosmin, which may be attributed to chain reactions by the enhanced formation of hydroxyl radicals (·OH) through H2O2 dissociation and reactive oxide ions of TiO2 addition. Rapid degradation of off-flavors occurred within 2 min under PUV process with H2O2 100 mg/L (81.5% for 2- MIB; 79.3% for geosmin) and TiO2 100 mg/L (83.7% for 2-MIB; 79.8% for geosmin), while compared with H2O2 100 mg/L (58.4% for 2-MIB; 58.0% for geosmin) and TiO2 100 mg/L (59.2% for 2-MIB; 38.5% for geosmin) within 5 min under US process. Surprisingly, the emphasis was given on the comparison with the same injected energies between PUV and US on degradation efficiency. Based on the injected energy comparison, the US provided better degradation performance under equal input power of 200 kJ with H2O2 100 mg/L, while compared with H2O2 100 mg/L under PUV process. Our findings suggest that US can be more effective compared to PUV for the degradation of off-flavors in aspect of energy consumptions.

Keywords: 2-Methylisoborneol;Geosmin;Catalyst;Pulsed ultraviolet;Ultrasound;

References
  • 1. Adewuyi, Y.G., 2001, Sonochemistry: Environmental science and engineering applications, Ind. Eng. Chem. Res., 40(22), 4681-4715.
  •  
  • 2. Anselme, C., Suffet, I.H., and Mallevialle, J., 1988, Effects of ozonation on tastes and odors, J. Am. Water Works Assoc., 80(10), 45-51.
  •  
  • 3. Bohrerova, Z., Shemer, H., Lantis, R., Impellitteri, C. A., and Linden, K. G., 2008, Comparative Disinfection efficiency of pulsed and continuous-wave UV irradiation technologies, Water Res., 42(12), 2975-2982.
  •  
  • 4. Chen, G., Dussert, B.W., and Suffet, I.H., 1997, Evaluation of granular activated carbons for removal of methylisoborneol to below odor threshold concentration in drinking water, Water Res., 31(5), 1155-1163.
  •  
  • 5. Chitra, S., Paramasivan, K., Cheralathan, M., and Sinha, P.K., 2012, Degradation of 1,4-dioxane using advanced oxidation processes, Environ. Sci. Pollut. Res., 19(3), 871-878.
  •  
  • 6. Ellis, J. and Korth, W., 1993, Removal of geosmin and methylisoborneol from drinking water by adsorption on ultrastable zeolite-Y, Water Res., 27(4), 535-539.
  •  
  • 7. GreenEnTech, 2008, The Pilot Study for the On-Site Demonstration of the High-Intensity Pulsed UV Disinfection System for Water Treatment, Ministry of Environment.
  •  
  • 8. Karl G. Linden, Gwyam Shin, Jungkeun Lee, Karl Scheible, Chengyue Shen, Phtllis Posy, 2009, Demonstrating 4-log adenovirus inactivation in a medium-pressure UV disinfection reactor, J. Am. Water Works Assoc. 101(3), 90-99.
  •  
  • 9. Laughrey, Z., Bear, E., Jones, R., and Tarr, M. A., 2001, Aqueous sonolytic decomposition of polycyclic aromatic hydrocarbons in the presence of additional dissolved species, Ultrason. Sonochem., 8(4), 353-357.
  •  
  • 10. Lee, H.U., Han, J.H., Yoon, Y.M., Lee, J.Y., Park, J.W., and Her, N.G., 2014, A study on the synergistic effects of hybrid system simultaneously irradiating the UV and US, J. Korea Geo-Environ. Soc., 15(7), 5-11.
  •  
  • 11. Maillacheruvu, K. and Safaai, S., 2002, Naphthalene removal from aqueous systems by sagittarius sp, J. Environ. Sci. Health A Tox. Hazard. Subst., Environ. Eng. 37(5), 845-861.
  •  
  • 12. Ministry of Environment, 2010, Drinking Water Guideline
  •  
  • 13. Omur-Ozbek P., Little J. C., and Dietrich A. M., 2007, Ability of humans to smell geosmin, 2-MIB and nonadienal in indoor air when using contaminated drinking water, Water Sci. Technol, 55(5), 249-256.
  •  
  • 14. Park, J.S., Park, S.Y., Oh, J.I., Jeong, S.J., Lee, M.J., and Her, N.G., 2009, Comparison of naphthalene degradation efficiency and OH radical production by the change of frequency and reaction conditions of ultrasound, Korean Soc. Environ. Eng., 31(2), 79-89.
  •  
  • 15. Psillakis, E., Goula, G., Kalogerakis, N., and Mantzavinos, D., 2004, Degradation of polycyclic aromatic hydrocarbons in aqueous solutions by ultrasonic irradiation, J. Hazard. Mater., 8, 845- 861.
  •  
  • 16. Rashash, D.M.C., Dietrich, A.M., and Hoehn, R.C., 1997, FPA of selected odorous compounds, J. Am. Water Works Assoc., 89(4), 131-141.
  •  
  • 17. Sohn, J., Park, S., and Jung, E., 2012, Removal of taste and odor causing compounds in drinking water using Pulse UV System, J. Korean Soc. Water Wastewater, 26(2), 219-228.
  •  
  • 18. Song, W. and O’Shea, K.E., 2007, Ultrasonically induced degradation of 2-methylisoborneol and geosmin, Water Res., 41, 2672-2678.
  •  
  • 19. Suffett, I.H., Corado, A., Chou, D., Mcguire, M.J.M., and Butterworth, S., 1996, AWWA taste and odor survey, J. Am. Water Works Assoc., 88(4), 168-180.
  •  
  • 20. Thiruvenkatachari, R., Vigneswaran, S., and Moon, I.S., 2008, A review on UV/TiO2 photocatalytic oxidation process, Korean J. Chem. Eng., 25(1), 64-72.
  •  
  • 21. Zhou, B., Yuan, R., Shi, C., Yu, L., Gu, J., and Zhang, C., 2010, Biodegradation of geosmin in drinking water by novel bacteria isolated from biologically active carbon, J. Environ. Sci., 23(5), 816-823.
  •  

This Article

  • 2015; 20(4): 1-7

    Published on Aug 31, 2015

  • 10.7857/JSGE.2015.20.4.001
  • Received on Dec 6, 2014
  • Revised on Mar 6, 2015
  • Accepted on Jul 27, 2015