%0 Journal Article
%T A commentary on the respirometric evaluation of biodegradable cod fractions in industrial wastewater
%A Baczyński, Tomasz
%A Beńko, Piotr
%J Czasopismo Techniczne
%V 2018
%R 10.4467/2353737XCT.18.184.9672
%N Volume 12 Year 2018 (115)
%P 139-150
%K COD fractionation, industrial wastewater, respirometry
%@ 0011-4561
%D 2018
%U https://ejournals.eu/czasopismo/czasopismo-techniczne/artykul/a-commentary-on-the-respirometric-evaluation-of-biodegradable-cod-fractions-in-industrial-wastewater
%X 
	This paper presents considerations on selected methodological aspects of respirometric COD fractionation in industrial wastewater which may differ from more common applications of such methodology for municipal wastewater. This concerns: the presence of interfering substances; problems with the elimination of nitrification; the importance of recognising biomass metabolism; differences of growth coefficient; the inclusion of non-canonical COD fractions and toxic effects. The discussion is based on a literature review and the authors’ own experience. As a conclusion, a preparatory procedure is proposed to assure the correct performance of respirometric COD fractionation for industrial wastewater, especially for more complex chemical effluents.