한국환경보건학회지 (Journal of Environmental Health Sciences)

  • 제29권1호
  • /
  • Pages.51-61
  • /
  • 2003
  • /
  • 1738-4087(pISSN)
  • /
  • 2233-8616(eISSN)
한국환경보건학회 (Korean Society of Environmental Health)
권호 표지

태양광/자외선/이산화티타늄($TiO_2$)을 이용한 에너지 절약형 광촉매 반응 처리시스템 개발

Development of Wastewater Treatment System by Energy-Saving Photocatalyst Using Combination of Solar Light, UV Lamp and $TiO_2$

  • 김현용 (㈜이앤비코리아 환경연구소) ;
  • 양원호 (대구가톨릭대학교 산업보건학과)
  • 발행 : 2003.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Pollution purification using titanium dioxide (TiO$_2$) photocatalyst has attracted a great deal of attention with increasing number of relent environmental problems. Currently, the application of TiO$_2$ photocatalyst has been focused on purification and treatment of waste water. However. the use of conventional TiO$_2$ powder photocatalyst results in disadvantage of stirring during the reaction and of separation after the reaction. And the usage of artificial UV lamp has made the cost of photocatalyst treatment system high. Consequently, we herein studied the pilot-scale design to aid in optimization of the energy-saving process for more through development and reactor design by solar light/UV lamp/ TiO$_2$system. In this study, we manufactured the TiO$_2$sol by sol-gel method. According to analysis by XRD, SEM and TEM, characterization of TiO$_2$ sol were nano-size (5-6 nm) and anatase type. Inorganic binder (SiO$_2$) was added to TiO$_2$ lot to be coated for support strongly, and support of ceramic bead was used to lower separation rate that of glass bead The influences were studied of various experimental parameters such as TiO$_2$ quantity, pH, flow rate. additives, pollutants concentration, climate condition and reflection plate by means of reaction time of the main chararteristics of the obtained materials. In water treatment system, variable realtor as solar light/ or UV lamp according to climate condition such as sunny and cloudy days treated the phenol and E-coli(Escherichia coli) effectively.

키워드

참고문헌

  1. Rechhow, D. A., Singer, P. C. and Molcolm, R. L. : Chlorination of humic materials; byproduct formation and chemical interpretations. Environ. Sci. Technol., 24(11), 1655-1664, 1990 https://doi.org/10.1021/es00081a005
  2. Kumar, S. and David, A. P. : Heterogeneous photocatalytic oxidation of nitrotoluenes. Water Environ. Res., 69(7), 1238-1245, 1997 https://doi.org/10.2175/106143097X125993
  3. Galvez, J. B. and Rodriguez, S. M. : Influence of solar irradiation over pentachlorophenol solar photocatalytic decomposition, Photocatalytic Purification and Treatment of Water and Air. Elsevier Science Publishers, 639-644, 1993
  4. Venkatadri, R. and Peters, R. W. : Chemical oxidation technologies : Ultra light/hydrogen peroxide, fentons reagent, an titanium dioxide-assisted photocatalysis. Haz. Waste & Haz. Mat., 10(2), 107-149,1993 https://doi.org/10.1089/hwm.1993.10.107
  5. Alberici, R. M. and Jardim, W. F. : Gas-phase destruction of VOCs Using $TiO_2$/UV and $TiO_2$/$O_2$/UV. J. Adv. Oxi. Technol., 3(2), 182-187, 1998
  6. 김현용, 조일형, 이소진, 기원주, 이홍근 : 순환식 반응기에서 $TiO_2$ 광촉매를 이용한 chromium(Ⅵ)의 제거에 미치는 영향인자에 대한 연구. 한국환경위행학회지, 25(3), 64-69, 1999
  7. Cooper, A. T., Goswami, D. Y. and Block, S. S. : Solar photochemical detoxification and disinfection for water treatment in tropical developing countries. J. Adv. Oxi. Technol., 3(2), 151-154, 1998
  8. Minero, C., Pelizzetti, E., Malato, S. and Blanco, J. : Large solar plant photocatalytic water decontamination: Effect of operational parameters. Solar Energy, 56(5), 421-428, 1996 https://doi.org/10.1016/0038-092X(96)00029-1
  9. 조일형, 김현용, 성기석, 박경렬, 이홍근 : 태양광/$TiO_2$ 시스템을 이용한 수중의 중금속-EDTA 제거에 관한 연구. 한국물환경학회지, 17(1), 35-46, 2001
  10. Kim, D. H., Iyoda, T., Hashimoto, K. and Fujishima, A. : Activity and hardness of supported $TiO_2$, films on prex and soda-lime glass in photocatalytic degradation of Formic acid for 50 days. J. Adv. Oxi. Technol., 3(2), 134-137, 1998
  11. 석상일, 안복엽, 최경훈, 서태수, 유영문 : 금속 및 유리 기판 위에 알루미나 졸을 바인더로 한 $TiO_2$ 광촉매의 코팅. 한국세라믹학회지, 38(7), 621-627, 2001
  12. Chen, F. and Zhao, J. : Preparation and photocatalytic properties of a novel kind of loaded photocatalyst of $TiO_2$/$SiO_2$/$\gamma$-$Fe_2$$O_2$. Catalysis Letters, 58, 245-247, 1999 https://doi.org/10.1023/A:1019071126825
  13. Minero, C., Pelizzetti, E., Malato, S. and Blanco, J. : Large solar plant photocatalytic water decontamination: Effect of operational parameters. Solar Energy, 56(5), 421-428, 1996 https://doi.org/10.1016/0038-092X(96)00029-1
  14. Prairie, M. R., Evans, L. R., Strange. B. M. and Martinez, S. L. : An investigation of $TiO_2$ photocatalysis for the treatment of water contaminated with metals and organic chemicals. Environ. Sci. Technol., 27(9), 1776-1782, 1993 https://doi.org/10.1021/es00046a003
  15. Huang, M., Tso, E. and Datye, A. K. : Removal of silver in photographic processing waste by $TiO_2$-based photocatalysis. Environ. Sci. Technol., 30(10), 3084-3088, 1996 https://doi.org/10.1021/es960167l
  16. Khalil, L. B., Mourad, W. E. and Rophael, M. W. : Photocatalytic reduction of environmental pollutant Cr(VI) over some semiconductors under UV/Visible light illumination. Appl. Catal. B, 17, 267-273, 1998 https://doi.org/10.1016/S0926-3373(98)00020-4