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Research and innovation | REF: IN98 V1

Organic matter fractionation techniques of liquid waste for the modeling of bioprocesses

Authors: Jean-Marc CHOUBERT,, Céline DRUILHE,, Fabrice BELINE, Sylvie GILLOT

Publication date: April 10, 2010, Review date: November 8, 2019 | Lire en français

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    Overview

    ABSTRACT

    After having provided an overview of the challenges of bioprocess modelling, this article presents concepts and methodologies available in order to fractionate organic matter in biodegradability classes (physicochemical and biological techniques). It provides an example of the standard fractionation values and presents the major similarities and differences in these methods. Elements in order to assist in the choice of the method, as well as complementary experimental methodologies allowing for a better understanding of the processes occurring in bioprocesses, are then proposed.

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     INTRODUCTION

    Biological processes are widely used to treat liquid and solid waste containing a high proportion of biodegradable matter. In order to optimize them, they are often studied using modeling tools, the use of which involves compartmentalizing organic matter into several fractions that are more or less rapidly degradable by bacteria. This fractionation requires the use of specific experimental methods, which are still poorly described and whose differences are not always clearly identified. However, the systematic application of a protocol for fractioning organic matter into biodegradability classes is essential for simulating processes and optimizing bioprocesses.

    This article presents the existing concepts and methodologies for fractioning organic matter, and provides feedback and advice on the choice of methods for use by engineers.

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    Table of symbols and abbreviations

    Code

    Definition

    Code

    Definition

    AGV

    volatile fatty acids

    (HCO3−)

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