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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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Read the articleINTRODUCTION
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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Fractionation techniques for organic matter in liquid waste for bioprocess modelling
Background and challenges
Bibliography
Standards and norms
- Détermination de la demande biochimique en oxygène après n jours (DBOn), 23 p. - AFNOR NF EN 1899-1 - 1999
- Détermination de la demande chimique en oxygène (DCO), 8 p. - AFNOR NF T90-101 - 2001
- Lignes directrices pour le dosage du carbone organique totale (TOC) et carbone organique dissous (COD), 16 p. - AFNOR NF EN 1484 - 1997
- Evaluation of the "ultimate" aerobic biodegradability of organic compounds...
Regulations
European Directive 91/271/EEC concerning urban waste water treatment, Official Journal of the European Community, https://eur-lex.europa.eu/legal-content/FR/TXT/?uri=LEGISSUM%3Al28008 (December 18, 2008), 1991.
Décret d'application 94-469 du 3 juin 1994 relatif à la collecte...
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