Contribution of modeling in the understanding of the anaerobic digestion: application to the digestion of protein-rich substrates
| Autor: | Zeyneb Khedim, Jérôme Harmand, Boumediene Benyahia |
|---|---|
| Přispěvatelé: | ProdInra, Migration, Laboratoire automatique de Tlemcen, Université Aboubekr Belkaid - University of Belkaïd Abou Bekr [Tlemcen], Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA), International Water Association (IWA). INT. |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
anaerobic digestion
[SDE] Environmental Sciences FAN threshold inhibition Materials science 020209 energy [SDV]Life Sciences [q-bio] 0207 environmental engineering Analytical chemistry chemistry.chemical_element 02 engineering and technology 7. Clean energy Ammonia chemistry.chemical_compound Biogas 0202 electrical engineering electronic engineering information engineering Ammoniacal nitrogen 020701 environmental engineering Substrate (chemistry) Nitrogen Dilution [SDV] Life Sciences [q-bio] Anaerobic digestion chemistry Yield (chemistry) [SDE]Environmental Sciences MAD model |
| Zdroj: | Lectures Notes in Civil Engineering Frontiers International Conference on Wastewater Treatment and Modelling Frontiers International Conference on Wastewater Treatment and Modelling, International Water Association (IWA). INT., May 2017, Palerme, Italy Lecture Notes in Civil Engineering ISBN: 9783319584201 |
| Popis: | This paper deals with the analysis of a Microalgae Anaerobic Digestion model (MAD model), to study the influence of the ammonia on the fermentation of such protein- rich substrate. Using the operating diagram of the model, we show the key role of the operating parameters: Dilution rate (\( {\mathbf{D}} \)) and the nitrogen input concentration (\( {\mathbf{N}}_{{{\mathbf{in}}}} \)), on the process performances. To investigate the ammonia toxicity phenomenon and its subsequent impact, we focus on the variation Free ammoniacal Nitrogen (FAN) concentration and the biogas yield with respect to the changes of \( {\mathbf{D}} \) and \( {\mathbf{N}}_{{{\mathbf{in}}}} \). Numerical simulations provide the FAN critical concentration leading to bacteria inhibition as well as the ideal values of the control parameters allowing to maximize biogas production, on the one hand, and to avoid any process failure, on the other hand. Our study highlights the effectiveness of the modeling to detect ammonia inhibition risk, that can then be used for control and optimization purposes of such anaerobic digestion process. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|