Effect of control parameters on biogas production during the anaerobic digestion of protein-rich substrates

Autor: Brahim Cherki, Jérôme Harmand, Boumediene Benyahia, Tewfik Sari, Zeyneb Khedim
Přispěvatelé: Khedim, Zeyneb, Université de Tlemcen, Information – Technologies – Analyse Environnementale – Procédés Agricoles (UMR ITAP), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-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), Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
OPERATING PARAMETERS
020209 energy
digestion anaérobie
02 engineering and technology
010501 environmental sciences
diagramme de fonctionnement
7. Clean energy
01 natural sciences
MICROALGAE
Ammonia
chemistry.chemical_compound
Digestion (alchemy)
ALGAE
modèle mathématique
Biogas
0202 electrical engineering
electronic engineering
information engineering
Control parameters
0105 earth and related environmental sciences
OPERATING DIAGRAM
micro-algue
AMMONIA
biology
Chemistry
Applied Mathematics
SUBSTRATES
equilibria
model
operating diagram
stability analysis
microalgae
anaerobic digestion
biology.organism_classification
biogaz
Methanogen
MODEL
Anaerobic digestion
optimisation du procédé
Modeling and Simulation
Scientific method
Yield (chemistry)
[SDE]Environmental Sciences
ANAEROBIC DIGESTION MODEL
Biochemical engineering
QUALITATIVE PROPERTIES
mesure de la stabilité
STABILITY ANALYSIS
Zdroj: Applied Mathematical Modelling, . (2018)
Applied Mathematical Modelling
Applied Mathematical Modelling, Elsevier, 2018, 61, pp.351-376. ⟨10.1016/j.apm.2018.04.020⟩
ISSN: 0307-904X
DOI: 10.1016/j.apm.2018.04.020⟩
Popis: International audience; This paper deals with the theoretical study of the anaerobic digestion of protein-rich substrates. Since the success of such digestion raises the issue of the possible release of ammonia, we have carried out a mathematical analysis of an Anaerobic Digestion model specifically developed for the treatment of Microalgae, termed MAD (Microalgae Anaerobic Digestion) in the literature. Our aim is to investigate the qualitative properties of the system via the calculation of its equilibria, their conditions of existence as well as their stability according to the operating parameters values. Simulation results highlight the key parameters acting on model behavior. In particular, it is shown that the control parameters can greatly affect biogas yield and, thus, process performance. The optimal conditions for process operation are then identified. To emphasize the effect of pH on biological reactions, we plot the operating diagram of the MAD model for different fixed pH values. We demonstrate that a rising pH favors the formation of the free ammonia, leading ultimately to methanogen inhibition. Surprisingly, our study highlights the insensitivity of the model to acidic environments, thus limiting its potential applications at low pH. Finally, we investigate the qualitative and quantitative properties of a modified ADM1 (Anaerobic Digestion Model no1) model in the light of those of the MAD model.
Databáze: OpenAIRE
Externí odkaz: