Letteratura scientifica selezionata sul tema "Boues digérées"
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Articoli di riviste sul tema "Boues digérées":
CHARLES, Antoine, Thierry RIBEIRO, Marcos OLIVEIRA, Sam AZIMI, Vincent ROCHER, Jean-Christophe BAUDEZ e S. Amir BAHRANI. "Mieux comprendre l’écoulement des boues digérées : rôle de la viscosité et de la température". Techniques Sciences Méthodes 10, n. 10 (20 ottobre 2023): 35–45. http://dx.doi.org/10.36904/tsm/202310035.
Toure, Fatou Kiné, Modou Dieng, Mamadou Faye, Malick Diedhiou, Mbagnick Thiam e Falilou Mbacké Sambe. "Traitement des déchets graisseux par co-digestion avec les boues pour la production de biogaz dans les stations d’épuration de l’Office National de l’Assainissement du Sénégal (ONAS)". Revue Africaine d’Environnement et d’Agriculture 6, n. 2 (3 luglio 2023): 2–10. http://dx.doi.org/10.4314/rafea.v6i2.2.
Couillard, D., e M. Chartier. "Influence des caractéristiques des boues digérées en aérobiose sur la solubilisation biologique des métaux". Canadian Journal of Civil Engineering 20, n. 3 (1 giugno 1993): 509–17. http://dx.doi.org/10.1139/l93-065.
DIRRENBERGER1, P. "Méthanisation (partie 2) : technologies de digestion et procédés utilisés – état de l’art". Techniques Sciences Méthodes, n. 9 (21 settembre 2020): 33–56. http://dx.doi.org/10.36904/tsm/202009033.
Tesi sul tema "Boues digérées":
Charles, Antoine Henri Etienne. "Étude thermo-rhéologique de boues digérées : application à l’écoulement en conduite dans les procédés de méthanisation". Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2023. http://www.theses.fr/2023MTLD0008.
The society’s wastewater treatment needs are met by waste water treatment plants that produce sludges. In order to anticipate the increase in this requirement in the future, the sludge treatment processes must achieve a certain level of efficiency in terms of sludge treatment and recovery. The anaerobic digestion process significantly reduces the volume of sludge generated and can the be used for agricultural and energy purposes, in the form of digestate, biogas, electricity or heat. It is nevertheless limited by ineffective control of the transport of digested sludge within it, due to a lack of knowledge of thermo-rheology, in terms of understanding and characterisation methods, and of the hydrodynamics involved in handling these very diverse sludges. This manifests itself operationally, downstream of the sizing and design phase, in inefficient pumping, matrix heterogeneity or component clogging.It is in this context of providing scientific elements, on the one hand of the therm-rheological characerisation of digested sludge and on the other hand of the demonstration of the hydrodynamics of these fluids in operation, that the research work carried out within the framework of this thesis falls within the scope of.Firstly, protocols dedicated to the specific characterisation of each non-Newtonian behaviour have been established. The application of these protocols, at the ITM Nord Europe – Energy Environment research centre and on the industrial partner’s Characterisation plateform, shows that the thermo-rheological characteristics of digested sludge are accurately modelled by a non-modified Herschel-Bulkley model. Yield stress and shear-thinning are significantly more important than the other thermo-rheological characteristics of thixotropy, viscoelasticity and thermo-dependence. The unanticipated physical phenomon of wall slip is observed in these digested sludges, leading to heterogeneous flow hydrodynamics under conditions of low inertia and loaw wall roughness.Secondly, an experimental set-up dedicated to studying the flow of such fluids in pipe is being set up, with a visualisation to determining their hydrodynamic behaviour. Using working fluids (Carbopol solutions), it was demonstrated that these fluids undergo a rheo-inertial transition (RIT) towards turbulence. This transition is characterised by the existence of a pre-transition regime, non-existent for a Newtonian fluid, within which the flow exibits an asymmetry, which is observed by direct visualisation. These visualisations, coupled with the measurement of pressure drops, also make it possible to quantify the intermittency of the RIT on the basis of the turbulent structures visualised. This makes it possible to control the movement of such fluids through knowledge of the stabilisation of their flows and the increase in the residence time of turbulent structures, due to the non-Newtonian characteristics without viscoelasticity.Thus, this thesis manuscipt summarises the scientific elements developed within the framework of this thesis to respond to the problems of the operational obstacles encountered. As these problems stem from a lack of fundamental knowledge of the thermo-rheology and hydrodynamics of the sludge that flows through it, the study focuses its research on these two areas in order to provide the fundamentals that will make it possible to improve the control of sludge transport within the anaerobic digestion process in wastewater treatment plants
Jobin, Lucas. "Stimulation et maitrise électrochimique de la bioremédiation des eaux". Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1080.
Our study focuses on the proof of concept of electrochemical control of methanogenesis, key metabolism of anaerobic digestion and water bioremediation, using the principle of microbial fuel cells. A first bibliographic section aims to describe the mechanisms of methanogenesis in the context of self-purification of water and natural production of greenhouse gases (GHG). Microbial fuel cell technologies are addressed. A critical analysis of the studies dealing with electrochemical control of methanogenesis makes it possible to size an experimental setup dedicated to quantification of GHGs in electro-stimulated biological cultures. Its design, validation and methods of cultivation are described in a second part. A series of preliminary cultures on anaerobic digested sewage sludge make it possible to identify and set the experimental parameters. In a third part, an experimental study proves the concept of electrochemical control of methanogenesis with a significant decrease of 33% in CH4 (voltage of +300 mV vs Ag/AgCl) compared to natural unstimulated methanogenesis. However, stimulation contributes to a 10-fold increase in CO2 production. This observation leads to the additional problem of impact on the greenhouse effect of the cultures studied. We go further than the initial objective by looking at the carbon footprint generated by all GHGs. The electrochemical treatment, in addition to the reduction of CH4 produced, makes it possible to reduce the contribution to the greenhouse effect of 15% of electro-stimulated cultures
Libri sul tema "Boues digérées":
Essai n° 311 : Essai de biodégradabilité anaérobie des composés organiques dans une boue digérée : mesure du dégagement gazeux. OECD, 2006. http://dx.doi.org/10.1787/9789264017696-fr.