대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제30권4호
  • /
  • Pages.439-445
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  • 2008
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
권호 표지

톱밥에 의한 염색폐수의 흡착처리

Adsorption of Textile Wastewater on Sawdust

  • 김탁현 (한국원자력연구원 방사선공업환경연구부) ;
  • 박철환 (광운대학교 화학공학과) ;
  • 김상용 (한국생산기술연구원 청정공정팀)
  • Kim, Tak-Hyun (Radiation Research Division for Industry and Environment, Korea Atomic Energy Research Institute(KAERI)) ;
  • Park, Chul-Hwan (Department of Chemical Engineering, Kwangwoon University) ;
  • Kim, Sang-Yong (Green Engineering Team, Korea Institute of Industrial Technology(KITECH))
  • 발행 : 2008.04.30
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초록

톱밥은 가장 저렴하면서도 주변에서 가장 흔하게 얻을 수 있는 흡착제중의 하나이며, 이는 사용 후 재생할 필요없이 소각시켜 버리거나 연료물질로 활용할 수 있는 장점이 있다. 이러한 톱밥은 산업폐수중의 색도 혹은 금속 이온성분의 제거를 위한 흡착제로 사용할 수 있다. 본 연구에서는 톱밥의 흡착특성을 알아보기 위하여 염색폐수내의 색도, 유기물질, 부유물질, 탁도 및 금속 이온 성분을 대상으로 그 흡착처리 특성을 확인하여 보았다. 특히, Langmuir, Freundlich, BET 및 Sips 흡착등온식을 활용하여 Fe(III) 이온 물질의 흡착특성을 조사하였으며, 톱밥 입자크기 및 주입량에 따른 영향도 조사하였다. 연속식의 고정상 흡착 실험을 통하여 SS 50.0%, Fe(III) 25.0%, 탁도 79.4%, 색도 48.6% 그리고 COD 50.9%의 제거효율을 획득하였다. 또한, SEM 분석을 통하여 흡착전후의 톱밥표면을 관찰하였다. 결론적으로, 폐톱밥이 산업폐수의 처리를 위한 양호한 흡착제로 활용이 가능함을 확인하였다.

Sawdust is considered one of the cheapest and abundantly available adsorbents, and it is not necessary to regenerate. The spent sawdust can be incinerated or reused as a fuel. The sawdust adsorption can be applied to the removal of color and metal cations from the wastewater. The aim of this study was to evaluate the adsorptive capacities of sawdust with respect to color, COD, SS, turbidity, metal cation from textile wastewater. Langmuir, Freundlich, BET and Sips adsorption isotherm were obtained for the sawdust adsorption of Fe(III). The effects of particle size and amount of sawdust on the adsorption of Fe(III) were also studied. COD, SS, color, turbidity and Fe(III) removal efficiencies were examined at the continuous fixed-bed adsorption test. It was showed the removal efficiencies of SS 50.0%, Fe(III) 25.0%, turbidity 79.4%, color 48.6% and COD 50.9%. In addition, the changes of surface structure between before and after adsorption were investigated through SEM analysis. It is confirmed that the waste sawdust can be successfully used as an adsorbent for wastewater treatment.

키워드

참고문헌

  1. Ajmal, M., Khan, A., Hussain, A. S., and Ahmad, A., "Role of Sawdust in the Removal of Copper(II) from Industrial Wastes," Water Res., 32, 3085-3091(1998) https://doi.org/10.1016/S0043-1354(98)00067-0
  2. Shukla, S. R. and Sakhardande, V. D., "Column Studies on Metal Ion Removal by Dyed Cellulosic Materials," J. Appl. Polym. Sci., 44, 903-910(1992) https://doi.org/10.1002/app.1992.070440518
  3. Shukla, S. R. and Sakhardande, V. D., "Removal of Metal Ions Using Dyed Cellulosic Materials," Dyes Pigments, 17, 101-112(1991) https://doi.org/10.1016/0143-7208(91)87024-H
  4. Fouad, M. M. K., "Numerical Simulation for Fixed Bed Adsorption of Dyes from Waste Water Using a Natural Adsorbent," J. Eng. Appl. Sci., 43, 421-432(1996)
  5. Kim, T.-H., Park, C., Lee, J., Shin, E.-B., and Kim, S., "Pilot Scale Treatment of Textile Wastewater by Combined Process(Fluidized Biofilm Process-Chemical Coagulation-Electrochemical Oxidation)," Water Res., 36, 3979-3988(2002) https://doi.org/10.1016/S0043-1354(02)00113-6
  6. Kim, T.-H., Park, C., Shin, E.-B., and Kim, S., "Effects of Cl-based Chemical Coagulants on Electrochemical Oxidation of Textile Wastewater," Desalination, 155, 59-65(2003) https://doi.org/10.1016/S0011-9164(03)00239-X
  7. Kim, T.-H., Park, C., Yang, J., and Kim, S., "Comparison of Disperse and Reactive Dye Removals by Chemical Coagulation and Fenton Oxidation," J. Hazard. Mater., B112, 95-103(2004)
  8. Al-Mansi, N. M., "Decolorizing Wastewater in a Fixed Bed Using Natural Adsorbents," Sep. Sci. Technol., 31, 1989-1995(1996) https://doi.org/10.1080/01496399608001025
  9. Meyer, V., Carlsson, F. H. H., and Oellermann, R. A., "Decolourization of Textile Effluent Using a Low Cost Natural Adsorbent Material," Water Sci. Technol., 26, 1205-1211(1992) https://doi.org/10.2166/wst.1992.0562
  10. Asfour, H. M., Fadali, M. M. N., and El-Geundi, M. S., "Equilibrium Studies on Adsorption of Basic Dyes on Hardwood," J. Chem. Technol. Biotechnol., 35A, 21-27(1985)
  11. APHA, "Standards Methods for the Examination of Water and Wastewater," APHA, 19th Ed., Washington, DC(1995)
  12. Hach, "Water Analysis Handbook," Hach Company, pp. 522-526(1997)
  13. Lalvani, S. B., Wiltowski, T. S., and Murphy, L. S., "Metal Removal from Process Water by Lignin," Environ. Technol., 18, 1163-1168(1997) https://doi.org/10.1080/09593331808616636
  14. Shukla, S. R. and Pai, S., "Removal of Pb(II) from Solution using Cellulose-containing Materials," J. Chem. Technol. Biotechnol., 80, 176-183(2005) https://doi.org/10.1002/jctb.1176
  15. Al-Asheh, S., Banat, F., Al-Omari, R., and Duvnjak, Z., "Predictions of Binary Sorption Isotherms for the Sorption of Heavy Metals by Pine Bark Using Single Isotherm Data," Chemosphere, 41, 659-665(2000) https://doi.org/10.1016/S0045-6535(99)00497-X
  16. Ramakrishna, K. R. and Viraraghavan, T., "Use of Slag for Dye Removal," Waste Manage., 17, 483-488(1997) https://doi.org/10.1016/S0956-053X(97)10058-7