Assessment of the initial inert soluble COD in industrial wastewaters

F. Germirli*, D. Orhon, N. Artan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

125 Citations (Scopus)

Abstract

The commonly used COD parameter does not differentiate between inert and biodegradable organic matter in wastewaters. This differentiation is quite necessary and significant for industrial effluents with high organic content. In such strong wastes the soluble influent COD fraction may severely interfere with the treatability results or challenge the effluent limitation criteria adopted for different industrial categories. The methods suggested in the literature to identify this fraction are not designed to differentiate between soluble inert organic matter and soluble residual microbial products generated during the experiments. This paper proposes two different methods for the assessment of the initial soluble inert COD fraction and summarizes their comparative evaluation. The methods are tested for five different industrial wastes characterizing pulp and paper, meat processing, antibiotics, textile and dairy effluents with total soluble COD concentrations ranging from 1000 to 9300 mgl-1. The results indicate significant interference of soluble residual microbial products which may be identified and corrected for with the proposed methods.

Original languageEnglish
Title of host publicationWater Science and Technology
Pages1077-1086
Number of pages10
Volume23
Edition4-6
DOIs
Publication statusPublished - 1991
EventProceedings of the 15th Biennial Conference of the International Association on Water Pollution Research and Control - Kyoto, Jpn
Duration: 29 Jul 19903 Aug 1990

Conference

ConferenceProceedings of the 15th Biennial Conference of the International Association on Water Pollution Research and Control
CityKyoto, Jpn
Period29/07/903/08/90

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