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Updated: Jun 27, 2026

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
A comprehensive method for organic matter characterization in solid wastes in view of assessing their anaerobic
Pierre Buffiere1, Sylvain Frederic, Bruno Marty
1INSA Lyon, LGCIE, Bat. Carnot, 9 rue de la physique, F-69621 Villeurbanne Cedex, France. pierre.buffiere@insa-lyon.fr
Abstract:
The calculation of the anaerobic biodegradability requires the knowledge of the COD of the organic waste considered. Unfortunately, standard COD measurements are not available for solid wastes. In addition, sample processing generally requires a drying step (for TS and VS assessment for instance). What is shown here is that important amounts of COD might be lost upon drying (around 30% in the case of spent apples). We propose an alternate method based on the separation of the waste in two fractions: water soluble (WS) and non water soluble (NWS, particulate). The two fractions have been characterized individually and both the COD and the biodegradability could be assessed with a greater accuracy. For spent apples, the biodegradability of the NWS fraction is much lower than that of the WS fraction (36.6% vs. 95.2%), and can be well predicted from a previously established model based on the measurement of the cellulose and lignin fractions.
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