TY - JOUR TI - A commentary on the respirometric evaluation of biodegradable cod fractions in industrial wastewater AU - Baczyński, Tomasz AU - Beńko, Piotr TI - A commentary on the respirometric evaluation of biodegradable cod fractions in industrial wastewater AB - 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. VL - 2018 IS - Volume 12 Year 2018 (115) PY - 2018 SN - 0011-4561 C1 - 2353-737X SP - 139 EP - 150 DO - 10.4467/2353737XCT.18.184.9672 UR - https://ejournals.eu/en/journal/czasopismo-techniczne/article/a-commentary-on-the-respirometric-evaluation-of-biodegradable-cod-fractions-in-industrial-wastewater KW - COD fractionation KW - industrial wastewater KW - respirometry