신탄과 재생탄에서 자연유기물질의 분자량이 이·취미(2-MIB) 흡착능에 미치는 영향

Effect of Molecular Weight of NOM for Adsorption of 2-MIB on Virgin and Reactivated GAC

  • 김성진 (숭실대학교 환경.화학공학과) ;
  • 홍성호 (숭실대학교 환경.화학공학과) ;
  • 최주솔 (숭실대학교 환경.화학공학과)
  • 투고 : 2007.08.07
  • 심사 : 2007.12.11
  • 발행 : 2007.12.15

초록

2-methylisoborneol (MIB) is a musty odor compound produced as a secondary metabolite by some cyanobacteria and actinomycetes. It is lead to distrust in tap water due to taste and odor. It is well known that activated carbon (AC) adsorption is the best available technology to remove 2-MIB and geosmin. In this study, physical characteristics of virgin AC and reactivated AC was compared. The effect of variation of NOM molecular weight on adsorption of 2-MIB in virgin AC and reactivated AC were also evaluated. BET surface area was decreased by 13 to 23% and total pore volume was decreased by 18 to 21% due to first and second reactivation compare to the virgin carbon. However, mesopore volume ($V_{meso}$) was increased about 14% after reactivation. It showed that micropore volume was decreased and move to mesopore or macropore after reactivation. Decreased adsorption capacity of 2-MIB was greatly related to below 3000Da. Adsorption capacity of 2-MIB was rather greater in virgin AC than in reactivated, which is strongly related to micropore volume.

키워드

과제정보

연구 과제 주관 기관 : 숭실대학교

참고문헌

  1. 김성진, 홍성호, 신홍섭 (2007) 활성탄 흡착지에서 응집 조건에 따른 자연유기물질과 이.취미 (Geosmin, 2-MIB) 파괴특성에 관현 연구, 상하수도학회지, 21(3), pp.91-99
  2. 나영신, 류동춘, 김상구, 배은영, 송미정, 손희종, 이상준 (2001) 생물활성탄 공정에서 신탄과 재생탄의 수처리 특성, 대한환경공학회지, 23(6), pp. 1001-1012
  3. 홍성호, 김성진, 오현제 (2003) 강화된 응집이 활성탄 흡착에 미치는 영향, 상하수도학회지, 17(3), pp. 378-385
  4. Newcombe G., Morrison J., Hepplewhite e. (2002) Simultaneous adsorption of MIB and NOM onto activated carbon: I Characterisation of the system and NOM adsorption. Carbon.. 40, pp. 2147-2156 https://doi.org/10.1016/S0008-6223(02)00098-2
  5. Cook D., Newcombe G., Sztajnbok P. (2001) The application of powdered activated carbon for MIB and geosmin removal: predicting PAC doses in four raw water. Water Res., 35(5), pp. 1325-1333 https://doi.org/10.1016/S0043-1354(00)00363-8
  6. Semmens, M.J., Staples, A.B., Hohenstein, G. (1986) Influence of Coagulation On Removal of Organics by Granular Activated Carbon, J. AWWA, 78(8), pp. 80-84
  7. White, M.e., Thompson, J.D., Harringtion, G,W. and Singer, P.e. (1997) Evaluation Criteria for Enhanced Coagulation Compliance, J. AWWA, 89(5), pp. 64-77 https://doi.org/10.1002/j.1551-8833.1997.tb08228.x
  8. Lloyd S. W., Lea ].M., Zimba P.Y., Grimm e.e. (1998) Rapid analysis of geosmin and 2-methylisoborneolin waterusing solid phase micro extraction procedures. Water Res, 32, pp. 2140-2146 https://doi.org/10.1016/S0043-1354(97)00444-2
  9. McGuire, M.J. and Suffet, LH. (1984) Aqueous chlorine activated carbon interactions. Jour. envir. engrg., 110(3), pp. 629-642 https://doi.org/10.1061/(ASCE)0733-9372(1984)110:3(629)
  10. Newcombe G., Drikas M. (1996) MIB removal: adsorption capacity and kinetics of eight activated carbons. In: proceeding of the Australian Water and Wastewater Association Water TECH Conference, Sydney, pp. 615-620
  11. N ajm I. (1996) Advances in the Mathematical modeling of PAC adsorption processes.). AWWA., 88(10), pp. 79-89
  12. Lalezary, S., Pirbazari, M., Dale, M.S., Tanaka, T.S. and Mcguire, M.J.(1998) Optimizing the Removal of Geosmin and 2-MIB by Powered Activated Carbon, AWWA, 80(3), pp.76-82
  13. Tsair-Fuh Lin, Chin-Ling Liu, Feng-Chen Yang and Hsuwen Hung (2003) Effect of residual chlorine on the analysis of geosmin, 2-MIB and MTBE in drinking water using the SPME technique. Water Research, 37, pp. 21-26 https://doi.org/10.1016/S0043-1354(02)00251-8
  14. US EPA (1996) ICR Manual for Bench -and Pilot -Scale Treatment Studies, EPA814-B-96-003
  15. Ebie K., Li F., Azuma Y., Yuasa A, Hagashita T. (2001) Pore distribution effect of activated carbon in adsorbing organic rnicropollutants from natural water. Water Res., 39(1), pp. 2537