Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지

Air stripping of odor causing materials from eutrophic lake water

부영양호 원수의 냄새유발 물질 탈기 특성

  • 박노백 (충북대학교 환경공학과) ;
  • 송용효 (충북대학교 환경공학과) ;
  • 나광주 (한국수자원공사 충청운영처) ;
  • 박상민 (한국과학기술연구원 환경기술연구단) ;
  • 전항배 (충북대학교 환경공학과)
  • Received : 2007.12.20
  • Accepted : 2008.10.01
  • Published : 2008.10.15
Download PDF
⟨ Previous Next ⟩

Abstract

Algal blooms in a local eutrophic lake often produces the musty and earthy taste & odor problems. Since the odor causing compounds(OCCs) including geosmin and 2-MIB have their own volatility, the OCCs can be removed from water by air stripping methods. Removal of TON(threshold odor number) as an index for OCCs could be fitted well with the first order equations($R^2=0.9$ above), where the air stripping coefficient of TON, k was in the range between 0.0055 and 0.0097 according to the aeration time. k within 30min aeration tests was 0.0097, while it was 0.0055 where the aeration time extended to 150min. With 15 mg/L of PAC, removal of TON was not simulated with 1st order equation within 30min aeration. Within 30min aeration, OCCs rather than geosmin and/or 2-MIB could be removed easily by air stripping or PAC adsorption, while OCCs such as geosmin and/or 2-MIB could be removed slowly by air stripping after 30min aeration. Geosmin and 2-MIB were not readily removed by air stripping(k of them were 0.0018~0.0047 and 0.0018~0.0034, respectively at different air flow rates). Geosmin could be removed by air stripping a little better than 2-MIB.

Keywords

References

  1. 임재림, 이경혁, 김성수, 채선하 (2007) "한강수계 고도정수처리 공정에서의 유기물과 맛 냄새의 제거특성", 상하수도학회지, 21(1), pp. 13-25.
  2. 김성진, 홍성호, 신흥섭 (2007) "활성탄 흡착지에서 응집조건에 따른 자연유기물질과 이취미(Geosmin, 2-MIB) 파과특성에 관한 연구", 상하수도학회지, 21(1), pp. 91-99.
  3. 배병욱, 김영일 (2003) "Geosmin과 2-MIB 제거를 위한 분말활성탄 최적 투입량 결정", 대한환경공학회지, 25(8), pp. 955-962.
  4. APHA, AWWA, WEF (1998) "Standard Methods for the Examination of Water and Wastewater", 20th ed.
  5. Metcalf & Eddy (2004) "Wastewater Engineering - Treatment, disposal and reuse", 4th. ed. McGraw Hill, Inc.
  6. Schnoor, Jerald L. (1996) "Environmental Modeling -Fate and transport of pollutants in water, air, and soil", John Wiley & Sons, Inc.
  7. Cook, D, Newcombe, G, and Sztajnbok, P. (2001) "The application of powered activated carbon for MIB and Geosmin removal: Predicting PAC doses in four raw waters", Wat. res., 35(5), pp. 1325-1333. https://doi.org/10.1016/S0043-1354(00)00363-8
  8. Newcombe, G., Morrison, J., Hepplewhite, C., and Knappe, D.R.U. (2002) "Simultaneous adsorption of MIB and NOM onto activated carbon. II. Competitive effects", Carbon, 40, pp. 2147-2156. https://doi.org/10.1016/S0008-6223(02)00098-2
  9. Bonmaiti, August, Flotats, Xavier (2003) "Air stripping of ammonia from pig slurry: characterisation and feasibility as a pre- or post-treatment to mesophilic anaerobic digestion", Waste Management, 23(3), pp. 261-272. https://doi.org/10.1016/S0956-053X(02)00144-7
  10. Gillogly, Thomas Edward Tokuo (1998) "MIB adsorption in drinking water treatment", Ph.D. Thesis, Department of Civil and Environmental Engineering University of Illinois.