COD Fractionation in Wastewater Characterization—The State of the Art

Wastewater characterization is now regarded as an indispensable step yielding all the necessary information for a reliable modelling and design of biological treatment processes. It should mainly include fractionation of the chemical oxygen demand (COD), and assessment of significant kinetic and stoichiometric coefficients. COD fractionation involves identification of inert and biodegradable COD together with readily biodegradable and slowly biodegradable fractions. Experimental methods developed or selected for the assessment of COD fractions should be compatible with the mathematical models defining biological treatment and should yield consistent and reliable values. A critical review of available experimental methodology is provided and values of significant COD components determined in this work and reported in the literature, for different types of domestic and industrial wastewaters are outlined. © 1997 SCI.

[1]  Willi Gujer,et al.  Estimation of kinetic parameters of heterotrophic biomass under aerobic conditions and characterization of wastewater for activated sludge modeling , 1992 .

[2]  Derin Orhon,et al.  Effect of Two-Stage Treatment on the Biological Treatability of Strong Industrial Wastes , 1993 .

[3]  W. Gujer,et al.  Activated sludge model No. 3 , 1995 .

[4]  Derin Orhon,et al.  A description of three methods for the determination of the initial inert particulate chemical oxygen demand of wastewater , 1994 .

[5]  Mogens Henze,et al.  PERFORMANCE AND MODEL CALIBRATION OF R-D-N PROCESSES IN PILOT PLANT , 1994 .

[6]  Derin Orhon,et al.  Modelling of activated sludge systems , 1994 .

[7]  Derin Orhon,et al.  Assessment of the Initial Inert Soluble COD in Industrial Wastewaters , 1991 .

[8]  G. Marais,et al.  Evaluation of the General Activated Sludge Model Proposed by the IAWPRC Task Group , 1986 .

[9]  F. Rogalla,et al.  Optimizing Nitrogen Removal Reactor Configurations by On-Site Calibration of the IAWPRC Activated Sludge Model , 1992 .

[10]  G. A. Ekama,et al.  A GENERAL MODEL FOR THE ACTIVATED SLUDGE PROCESS , 1981 .

[11]  A. R. Bowers,et al.  Soluble Microbial Product Formation in Biological Systems , 1991 .

[12]  G. A. Ekama,et al.  Procedures for Determining Influent COD Fractions and the Maximum Specific Growth Rate of Heterotrophs in Activated Sludge Systems , 1986 .

[13]  Willi Gujer,et al.  Characterisation of Domestic Wastewater for Mathematical Modelling of the Activated Sludge Process , 1991 .

[14]  J. Chudoba.  Quantitative estimation in cod units of refractory organic compounds produced by activated sludge microorganisms , 1985 .

[15]  W. Gujer,et al.  Temperature Effects on Wastewater Characterization and the Release of Soluble Inert Organic Material , 1992 .

[16]  Derin Orhon,et al.  Biological treatability of dairy wastewaters , 1993 .