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COD Fractionation in Wastewater Characterization—The State of the Art
Author(s) -
Orhon Derin,
Çokgör Emine Ubay
Publication year - 1997
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199703)68:3<283::aid-jctb633>3.0.co;2-x
Subject(s) - fractionation , chemical oxygen demand , wastewater , characterization (materials science) , inert , biochemical engineering , yield (engineering) , pulp and paper industry , sewage treatment , environmental science , process engineering , chemistry , chromatography , materials science , environmental engineering , organic chemistry , nanotechnology , engineering , metallurgy
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.