Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Respirometry for the Assessment of Organics Biodegradability in Municipal Wastewater: II. Active Biomass and NUR

호흡률법에 의한 하수의 생분해 특성 평가: II. 활성미생물 및 NUR

  • 김동한 (서원대학교 환경건설정보학과) ;
  • 김규동 (서울대학교 지구환경시스템공학부) ;
  • 정태학 (서울대학교 지구환경시스템공학부)
  • Received : 2003.08.30
  • Accepted : 2003.12.30
  • Published : 2004.04.15
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Abstract

The biodegradability of organics has become essential for the design and modeling of a biological nutrient removal process. Respirometry for the batch test just with wastewater has been conducted to estimate active biomass and readily biodegradable organics in municipal wastewater simultaneously. Municipal wastewater contains significant active biomass, which is estimated about 17% of COD. Compared to the batch test seeded with sludge, the batch test just with wastewater represents a little higher readily biodegradable organics. This might be due to the different environment of the logarithmic growth of active biomass. The nitrate uptake rate test has been also performed for the estimation of the readily biodegradable organics. The nitrate uptake rate test results in a little higher readily biodegradable organics compared to the batch test seeded with sludge and similar organics compared to the batch test just with wastewater. This might be caused by the different sludge of a sequencing batch reactor process. Taking the result of the previous research into account, the readily biodegradable, slowly biodegradable, active biomass, soluble inert, and particulate inert organics are estimated about 11%, 49%, 17%, 11%, and 12% of COD, respectively.

Keywords

References

  1. 고대현, 최영균，정태학 (2001) NUR 회환실험율 통한 부식토의 탈질에 대한 영향 평가， 상하수도확회지. 15(1). pp.20-27
  2. Benes, O., Spanjers, H. and Holba, M. (2002) Respirometry Techniques and Activated Sludge Models, Wilt. Sci. Tech., 46(4-5),pp.1-6
  3. Ekarna, G.A, Dold,P.L. and Marais, G.V.R (1986) Procedures for Determining Influent COD Fractions and the Maximum Specific Growth Rate of Heterotrophs in Activated Sludge Systems, Wat. Sci. Tech., 18(6), pp.91-114
  4. Henze, M., Gujer, W., Mino, T. and van Loosdrecht, M. (2000) Activated Sludge Models ASM1, ASM2, ASM2d and ASM3. Scientific and Technical Report No.9, IWA Publishing, London
  5. Kappeler, J. and Guier, W. (1992) Estimation of Kinetic Parameters of Heterotrophic Biomass under Aerobic Conditions and Characterization of Wastewater for Activated Sludge Modelling, War. Sci. Tech., 25(6), pp. 125-139
  6. Kujawa, K. and Klapwijk, B. (1999) A Method to Estimate Denitrification Potential for Predenitrification Systems Using NUR Batch Test, Wat. Res., 33(10), pp.2291-2300 https://doi.org/10.1016/S0043-1354(98)00459-X
  7. Lekkegaard Bjerre, H., Hvitved-jacobsen, T., Teichgr ber, B. and te Heesen, D. (1995) Experimental Procedures Characterizing Transformations of Wastewater Organic Matter in the Emscher River, Germany, Wat. Sci. Tech., 31(7), pp.201-212 https://doi.org/10.1016/0273-1223(95)00337-M
  8. Sollfrank, U. and Gujer, W. (1991) Characterisation of Domestic Wastewater for Mathematical Modelling of the Activated Sludge Process, War. Sci. Tech., 23(4-6), pp. 1057-1066
  9. Spanjers, H. and Vanrolleghem, P. (1995) Respirometry as a Tool for Rapid Characterization of Wastewater and Activated Sludge, War. Sci. Tech., 31(2), pp. 105-114
  10. UbayCokgor, E., Sozen, S., Orhon, D. and Henze, M. (1998) Respirometric Analysis of Activated Sludge Behaviour-I. Assessment of the Readily Biodegradable Substrate, Wat. Res., 32(2), pp.461-475
  11. Wentzel, M.C., Mbewe, A and Ekama, G.A. (1995) Batch Test for Measurement of Readily Biodegradable COD and Active Organism Concentrations in Municipal Waste Waters, Water SA, 21(2), pp. 117-124