Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Time-Dependent Behavior of Waste-Air Treatment Using Integrated Hybrid System

통합 하이브리드시스템을 활용한 폐가스 처리 거동

  • Lee, Eun Ju (Department of Chemical Engineering, Daegu University) ;
  • Lim, Kwang-Hee (Department of Chemical Engineering, Daegu University)
  • 이은주 (대구대학교 화학공학과) ;
  • 임광희 (대구대학교 화학공학과)
  • Received : 2021.11.17
  • Accepted : 2021.12.14
  • Published : 2022.02.01
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Abstract

In this study, integrated hybrid system (IHS) composed of two alternatively-operating UV/photocatalytic reactor (AOPR) process and biofilter processes of a biofilter system having two units (i.e., Rup and Rdn) with an improved design (R reactor) and a conventional biofilter (L reactor) was constructed, and its transient behavior was observed to perform the successful treatment of waste air containing ethanol and hydrogen sulfide (H2S). At the IHS-operating stages of HA1, HA2 and HA3T of reversed feed direction, the AOPR process showed not only ethanol-removal efficiencies of 55, 50 and 45%, respectively, but also H2S-removal efficiencies of 70, 60 and 37%, respectively. In particular, a drastic decrease of H2S-removal efficiency at the stage of HA3T was observed due to a doubling of H2S-inlet concentration fed to AOPR from 10 ppmv to 20 ppmv at the stage of HA3T. The order of ethanol-breakthroughs and the order of the magnitude of ethanol-removal efficiencies at the sampling ports of each unit of R reactor at the stages of HA1, HB1, HA2, HB2, and the first half of HA3T, were reversed, respectively, at the stages of the second half of HA3T and HB3T. In case of H2S, R reactor did not show H2S-breakthrough as prominent as the ethanol-breakthrough, but showed the trend similar to the ethanol-breakthrough.

교대로 운전되는 광촉매반응기 공정 및 바이오필터 공정[전통적 바이오필터(L 반응기)와 두 개의 유닛(Rup 및 Rdn)을 가지는 개선된 바이오필터(R 반응기)]으로 구성된 통합 하이브리드시스템(통합처리시스템)에서 에탄올과 황화수소를 동시 함유한 폐가스 처리를 성공적으로 수행하였다. 통합처리시스템의 운전 단계로서 HA1, HA2 및 폐가스의 공급 방향이 뒤바뀐 HA3T stage의 광촉매 공정에서 각각 55, 50 및 45%의 에탄올 제거효율과 각각 70, 60 및 37%의 황화수소 제거효율을 보였다. 특히, HA3T stage에서 통합처리시스템으로 공급되는 폐가스(feed)의 황화수소 농도가 10 ppmv에서 20 ppmv로 급증함에 따른 황화수소 부하량의 증가로 인하여 특히 황화수소 제거효율의 급격한 감소를 관찰하였다. 통합처리시스템의 HA1, HB1, HA2 및 HB2 stage 및 HA3T stage의 초반에, 개선된 바이오필터(R 반응기)의 각 유닛에 설치한 sampling 구들의 에탄올의 파과 순서 및 에탄올 처리효율의 크기 순서는, HA3T stage 후반과 HB3T stage의 경우에서 각각 거꾸로 바뀌었다. 한편 개선된 바이오필터(R 반응기)에서 황화수소의 경우는 파과 정도가 에탄올의 경우만큼 두드러지지는 않았으나 비슷한 추세가 관찰되었다.

Keywords

References

  1. Fazlzadeh Davil, M., Rostami, R., Zarei, A., Feizizadeh, M., Mahdavi, M., Mohammadi, A. A. and Eskandari, D., "A Survey of 24 hour Variations of BTEX Concentration in the Ambient Air of Tehran," J. Babol Univ. Med. Sci., 14, 50-55(2012).
  2. Yunesian, M., Rostami, R., Zarei, A., Fazlzadeh, M. and Janjani, H., "Exposure to High Levels of PM2.5 and PM10 in the Metropolis of Tehran and the Associated Health Risks During 2016-2017," Microchem. J., https ://doi. org/10.1016/j.micro c.2019.104174 (2019).
  3. Fulazzaky, M. A., Talaiekhozani, A., Ponraj, M., Abd Majid, M., Hadibarata, T. and Goli, A., "Biofiltration Process as an Ideal Approach to Remove Pollutants from Polluted Air," Desalination Water Treat., 52, 3600-3615(2014). https://doi.org/10.1080/19443994.2013.854102
  4. Chen, Z., Peng, Y., Chen, J., Wang, C., Yin, H., Wang, H., You, C. and Li, J., "Performance and Mechanism of Photocatalytic Toluene Degradation and Catalyst Regeneration by Thermal/UV Treatment," Environ. Sci. Technol., 54(22), 14465-14473(2020). https://doi.org/10.1021/acs.est.0c06048
  5. Jeon, J.-W., Lee, D.-H., Won, Y. S. and Lee, M.-G., "Characteristics of Photocatalytic Decomposition of Individual and Binary Mixture Vapors of Some VOCs by a Cylindrical UV Reactor with Helically Installed TiO2-coated Perforated Planes," Korean Journal of Chemical Engineering, 35(3), 744-749(2018). https://doi.org/10.1007/s11814-017-0320-x
  6. Khodadadian, F., de Boer, M. W., Poursaeidesfahania, A., van Ommen, J. R., Stankiewicz, A. I. and Lakerveld, R., "Design, Characterization and Model Validation of a LED-based Photocatalytic Reactor for Gas Phase Applications," Chemical Engineering Journal, 333, 456-466(2018). https://doi.org/10.1016/j.cej.2017.09.108
  7. Lim, K.-H. and Lee, E. J., "Visible Ray Utilizing Devices to Treat Waste-air," Korean Patent No. 10-1275428(2013).
  8. Lee, E. J. and Lim, K.-H., "Performance of Waste-air Treating System Composed of Two Alternatively-operating UV/photocatalytic Reactors and Evaluation of Its Characteristics," Korean Chem. Eng. Research, 59(4), 574-583(2021). https://doi.org/10.9713/KCER.2021.59.4.574
  9. Lee, E. J., Jung, C. H. and Lim, K.-H., "Characterization of Repeated Deactivation and Subsequent Re-activation of Photocatalyst Used in Two Alternatively-operating UV/photocatalytic Reactors of Waste-air Treating System," Korean Chem. Eng. Research, 59(4), 584-595(2021). https://doi.org/10.9713/KCER.2021.59.4.584
  10. Chen, Z., Peng, Y., Chen, J., Wang, C., Yin, H., Wang, H., You, C. and Li, J., "Performance and Mechanism of Photocatalytic Toluene Degradation and Catalyst Regeneration by Thermal/UV Treatment," Environ. Sci. Technol., 54(22), 14465-14473(2020). https://doi.org/10.1021/acs.est.0c06048
  11. Ghasemi, R., Golbabaei, F., Rezaei, S., Pourmand, M. R., Nabizadeh, R., Jafari, M. J. and Massorian, E., "A comparison of Biofiltration Performance Based on Bacteria and Fungi for Treating Toluene Vapors from Airflow," AMB Epr., 10(8), https://doi.org/10.1186/s13568-019-0941-z(2020).
  12. Shareefdeen, Z., "Hydrogen Sulfide (H2S) Removal Using Schist Packings in Industrial Biofilter Applications," Korean Journal of Chemical Engineering, 32(1), 15-19(2015). https://doi.org/10.1007/s11814-014-0349-z
  13. Lee, E. J. and Lim, K.-H., "A Dynamic Adsorption Model for the Gas-phase Biofilters Treating Ethanol: Prediction and Validation," Korean Journal of Chemical Engineering, 29(10), 1373-1381(2012). https://doi.org/10.1007/s11814-012-0063-7
  14. Alfonsin, C., Hernandez, J., Omil, F., Prado, O. J., Gabriel, D., Feijoo, G. and Moreira, M. T., "Environmental Assessment of Different Biofilters for the Treatment of Gaseous Streams," J. Environ. Manag., 129, 463-470(2013). https://doi.org/10.1016/j.jenvman.2013.08.009
  15. Kennes, C., Rene, E. R. and Veiga, M. C., "Bioprocesses for Air Pollution Control," J. Chem. Technol. Biotechnol., 84, 1419-1436 (2009). https://doi.org/10.1002/jctb.2216
  16. Yang, C. P., Suidan, M. T., Zu, X. Q. and Kim, B. J., "BiomassAccumulation Patterns for Removing Volatile Organic Compounds in Rotating Drum Biofilters," Water Sci. Tech., 48, 89-96 (2003).
  17. Moe, W. M. and Irvine, R. L., "Polyurethane Sponge Medium forBiofiltration, II: Operation and Performance," J. Environ. Eng., 126, 826-832(2000). https://doi.org/10.1061/(ASCE)0733-9372(2000)126:9(826)
  18. Kenes, C. and Veiga, M. C., "Inert Filter Media for the Biofiltration of Waste Gas-characteristics and Biomass Control," Rev. Environ. Sci. Biotechnol., 1, 201-214(2002). https://doi.org/10.1023/a:1021240500817
  19. Yang, C. P., Suidan, M. T., Zu, X. Q. and Kim, B. J., "Comparison of Single-layer and Multi-layer Rotating Drum Biofiltersfor VOC Removal," Environ. Prog., 22, 87-94(2003). https://doi.org/10.1002/ep.670220210
  20. Dorado, A. D., Baeza, J. A., Lafuente, J., Gabriel, D. and Gamisans, X., "Biomass Accumulation in Biofilter Treating Toluene atHigh Loads-Part 1: Experimental Performance from Inoculationto Clogging," Chem. Eng. J., 209, 661-669(2012). https://doi.org/10.1016/j.cej.2012.08.018
  21. Lee, E. J. and Lim, K.-H., "Biofilter Treatment of Waste Air Containing Malodor and VOC: 1. Pressure Drop and Microbepopulation Distribution of Biofilter with Improved Design," Korean Chem. Eng. Res., 51(1), 127-135(2013). https://doi.org/10.9713/kcer.2013.51.1.127
  22. Lim, K.-H. and Lee, E. J., "Novel Process System Composed of UV(or VIS-)/photo-catalytic Reactor Washable During its Operation and Robust Biofilter System to Treat Waste Air Containing Malodorous and Volatile Organic Compounds," Korean Patent No. 10-0942147(2010).
  23. Wright, W. F., "Transient Response of Vapor Phase Biofilters," Chem. Eng. J., 113, 161-173(2005). https://doi.org/10.1016/j.cej.2005.04.009
  24. Znad, H. T., Katoh, K. and Kawase, Y., "High Loading TolueneTreatment in a Compost Based Biofilter Using Up-flow and Downflow Swing Operation," J. Hazard. Mater., 141, 745-752 (2007). https://doi.org/10.1016/j.jhazmat.2006.07.039
  25. Lim, K.-H., Park, S. W., Lee, E. J. and Hong, S.-H., "Treatment of Mixed Solvent Vapors with Hybrid System Composed of Biofilter and Photo-catalytic Reactor," Korean Journal of Chemical Engineering, 22(1), 70-79(2005). https://doi.org/10.1007/BF02701465
  26. Mohseni, M. and Prieto, L., "Biofiltration of Hydrophobic VOCs Pretreated with UV Photolysis and Photocatalysis," IJETM, 9, 47 (2008). https://doi.org/10.1504/IJETM.2008.017859
  27. Wei, Z., Sun, J., Xie, Z., Liang, M. and Chen, S., "Removal of Gaseous Toluene by the Combination of Photocatalyticoxidation Under Complex Light Irradiation of UV and Visible Light and Biological Process," J. Hazard. Mater., 177, 814-821(2010). https://doi.org/10.1016/j.jhazmat.2009.12.106
  28. Hinojosa-Reyes, M., Rodriguez-Gonzalez, V. and Arriaga, S, "Enhancing Ethylbenzene Vapors Degradation in a Hybrid System Based on Photocatalytic Oxidation UV/TiO2-In and a Biofiltration Process," J. Hazard Mater., 209-210, 365-371(2012). https://doi.org/10.1016/j.jhazmat.2012.01.035
  29. Palau, J., Penya-Roja, J. M., Gabaldon, C., Alvarez-Hornos, F. J. and Martinez-Soria, V., "Effect of Pre-treatments Based on UV Photocatalysis and Photo-oxidation on Toluene Biofiltration Performance," J. Chem. Technol. Biotechnol., 87, 65-72(2012). https://doi.org/10.1002/jctb.2683
  30. Saucedo-Lucero, J. O. and Arriaga, S., "Photocatalytic Oxidation Process Used as a Pretreatment to Improve Hexanevapors Biofiltration," J. Chem. Technol. Biotechnol., 90, 907-914(2015). https://doi.org/10.1002/jctb.4396
  31. Zeng, P., Li, J., Liao, D., Tu, X., Xu, M. and Sun, G., "Performance of a Combined System of Biotrickling Filter and Photocatalytic Reactor in Treating Waste Gases from a Paint-manufacturing Plant," Environ. Technol., 37, 237-244(2016). https://doi.org/10.1080/09593330.2015.1068375
  32. Lee, E. J. and Lim, K.-H., "Treatment of Malodorous Waste Air Containing Ammonia Using Hybrid System Composed of Photocatalytic Reactor and Biofilter," Korean Chem. Eng. Research, 51(2), 272-278(2013). https://doi.org/10.9713/kcer.2013.51.2.272
  33. Lee, E. J. and Lim, K.-H., "Transient Behavior of Hybrid System Composed of a Photo-catalytic Reactor and a Biofilter to Treat Waste-air Containing High Concentrated-hydrogen Sulfide with High Loading," Journal of Chemical Engineering of Japan, 46(9), 636-647(2013). https://doi.org/10.1252/jcej.13we076
  34. Lee, E. J. and Lim, K.-H., "Semi-pilot Scaled Hybrid Process Treatment of Malodorous Waste Air: Performance of Hybrid System Composed of Biofilter Packed with Media Inoculated with Thiobacillus sp. IW and Return-sludge and Photocatalytic Reactor," Korean Chem. Eng. Research, 52(2), 191-198(2014). https://doi.org/10.9713/kcer.2014.52.2.191
  35. Lee, E. J. and Lim, K.-H., "Treatment of Malodorous Waste Air Using Hybrid System," Korean Chem. Eng. Research, 48(3), 382-390(2010).
  36. 4500-S2- D. Methylene Blue Method, In "Standard Methods for the Examination of Water and Wastewater," American Public Health Association (APHA), the American Water Works Association (AWWA), and the Water Environment Federation (WEF).
  37. 4500-SO32- B. Iodometric Method, In "Standard Methods for the Examination of Water and Wastewater," American Public Health Association (APHA), the American Water Works Association (AWWA), and the Water Environment Federation (WEF).
  38. Andronic, L. and Enesca, A., "Black TiO2 Synthesis by Chemical Reduction Methods for Photocatalysis Applications," Front. Chem., 8, 565489(2020). https://doi.org/10.3389/fchem.2020.565489
  39. Lee, K., Mazare, A. and Schmuki, P., "One-dimensional Titanium Dioxide Nanomaterials: Nanotubes," Chem. Rev., 114, 9385-9454 (2014). https://doi.org/10.1021/cr500061m
  40. Holleman, A. F., Wiberg, E. and Wiberg, N., Inorganic Chemistry, Academic Press, San Diego, ISBN 9780123526519 (2001).
  41. Chung, Y.-C., Huang, C. and Tseng, C.-P., "Operation Optimization of Thiobacillus thioparus CH11 Biofilter for Hydrogen Sulfide Removal," Journal of Biotechnology, 52, 31-38(1996). https://doi.org/10.1016/S0168-1656(96)01622-7