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Academic literature on the topic 'Colmatage de membranes'
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Journal articles on the topic "Colmatage de membranes"
Roth, E., B. Fabre, A. Accary, and B. Faller. "Étude du colmatage de membranes d'osmose inverse utilisées pour la préparation des eaux de dialyse rénale." Revue des sciences de l'eau 11, no. 3 (April 12, 2005): 409–28. http://dx.doi.org/10.7202/705314ar.
Full textSUARD, E., Y. FAYOLLE, R. CLÉMENT, V. ROCHER, M. ALLIET, C. ALBASI, and S. GILLOT. "Limitation du colmatage dans un bioréacteur à membranes à l’échelle semi-industrielle : modélisation et caractérisation de l’hydrodynamique." Techniques Sciences Méthodes, no. 5 (May 20, 2020): 47–57. http://dx.doi.org/10.36904/tsm/202005047.
Full textDing, P., E. Spiazzi, C. Bardot, and J. Lenoir. "Modification des Propriétés des Membranes d'Ultrafiltration Chargées par Colmatage: Mécanisme et Conséquences." Key Engineering Materials 61-62 (January 1992): 565–68. http://dx.doi.org/10.4028/www.scientific.net/kem.61-62.565.
Full textKecili, Karima, Hélène Habarou, Hervé Suty, Jean-Philippe Croué, and Maxime Pontié. "Approche analytique intégrée du colmatage de membranes MF–UF par les matières organiques naturelles (MON). Partie 1 : Caractérisations in situ et modèles de colmatage." Comptes Rendus Chimie 9, no. 9 (September 2006): 1178–91. http://dx.doi.org/10.1016/j.crci.2005.12.007.
Full textPouliot, M., Y. Pouliot, M. Britten, and N. Rodrigue. "Microfiltration de lactosérum doux sur membranes d'alumine : influence des conditions hydrodynamiques sur le colmatage." Le Lait 75, no. 2 (1995): 117–31. http://dx.doi.org/10.1051/lait:199529.
Full textBouchard, C., J. Sérodes, M. Rahni, D. Ellis, E. Laflamme, and M. Rodriguez. "Étude du colmatage des membranes en ultrafiltration et en coagulationultrafiltration d'eau de surface." Journal of Environmental Engineering and Science 2, no. 2 (March 2003): 139–48. http://dx.doi.org/10.1139/s03-007.
Full textMalériat, J. P., P. Jaouen, N. Rossignol, J. P. Schlumpf, and F. Quemeneur. "Influence de l'adsorption d'alginates sur les propriétés de membranes organiques d'ultra et de microfiltration." Revue des sciences de l'eau 13, no. 3 (April 12, 2005): 269–87. http://dx.doi.org/10.7202/705394ar.
Full textAloulou, Imen, Khaled Walha, Raja Ben Amar, Francis Quemeneur, and Pascal Jaouen. "Étude préliminaire du traitement d’effluents contenant de l’encre de seiche par centrifugation et procédés à membranes." Revue des sciences de l'eau 19, no. 4 (January 17, 2007): 383–92. http://dx.doi.org/10.7202/014422ar.
Full textPouet, M. F., F. Persin, and M. Rumeau. "Etude du Couplage Electrocoagulation - Flottation pour Limiter le Colmatage des Membranes en Traitement des Eaux." Key Engineering Materials 61-62 (January 1992): 237–42. http://dx.doi.org/10.4028/www.scientific.net/kem.61-62.237.
Full textFreund, Ph, and G. M. Rios. "Mecanismes de colmatage et performances comparées de quatre membranes d'alumine: Cas de l'ultrafiltration de gelatine." Canadian Journal of Chemical Engineering 70, no. 2 (April 1992): 250–57. http://dx.doi.org/10.1002/cjce.5450700207.
Full textDissertations / Theses on the topic "Colmatage de membranes"
Martinelli, Laure. "Influence de l'aération sur le colmatage des membranes immergées." Toulouse, INSA, 2006. http://eprint.insa-toulouse.fr/archive/00000323/.
Full textThis thesis is about the influence of aeration on submerged hollow fibre membrane fouling in outside/in filtration. In a first part, yeast filtration (0. 5 g. L-1) is studied in a 100 l tank with a membrane area of 0. 32m2. Two types of filtration experiments were performed: critical condition determination with flux step method and filtration experiment under fouling condition. These experiments were performed without and with aeration with small and spherical cap bubbles. Fouling sensitivity to position and small bubble injection flow rate as well as to frequency and volume of spherical cap was analysed. Filtration experiments involve characterization of filtration efficiency with tight and loose fibres. In a second, part local experimental and numerical studies were performed thanks to the image analysis, P. I. V. Measurements and FLUENT numerical simulations (two-fluid model for small bubbles and V. O. F. Model for spherical cap bubbles). Filtration and hydrodynamics analysis results lead to the determination of mechanisms explaining aeration effect on submerged hollow fibre fouling. This study contributes to better understand the revelant global hydrodynamic parameters in order to control fouling
NADEAU, ISABELLE. "Influence de l'ozone en prétraitement sur le colmatage des membranes d'ultrafiltration." Poitiers, 1993. http://www.theses.fr/1993POIT2411.
Full textOgnier, Stéphanie. "Contribution pour le contrôle dynamique du colmatage en bioréacteur à membranes." Montpellier 2, 2002. http://www.theses.fr/2002MON20143.
Full textLebegue, Julie. "Aération et dynamique de colmatage en bioréacteur à membranes immergées : identification de grandeurs et phénomènes déterminants." Montpellier 2, 2008. http://www.theses.fr/2008MON20097.
Full textMembrane bioréactor, coupling bioreactions and porous membrane separation in a same unit, allows working with high biomass concentrations what improves bioreaction rates but penalizes the separation step. Integrated in a European Program (EUROMBRA), this work had as objective to study the influence of hydrodynamics induced by aeration on the membrane fouling dynamic. According to precedent works of the laboratory and the analyses of references, the objective was axed on the phenomenon analysis at three observation scales: irreversible biomass accumulation throughout the membrane bundle, analysis of the biofilm present on the membrane surface, importance of adsorbed molecules into membrane pores. Specific methodologies were carried out, lab scale pilots and analytical methods, notably for biofilm observations and identification of irreversible compounds fixed onto/into membrane (this part was developed in collaboration with the University of Technology of Sydney). Results show the importance of determining criteria (i) on the biological step such as solid retention time and organic load rate which determine concentrations of biomass and soluble microbial product in biological suspension and influence directly reaction rates but also membrane fouling dynamics and (ii) on the separation step, the role of aeration to control sludging and biofilm importance, wheras adsorption into the pores was not depending on aeration. Future researches can then be focused on identification of SMP in relation with biological conditions and their influence on biofilm structure and properties
Bouhabila, El Hani. "Epuration d'eaux usées par bioréacteur aéré à membranes immergées : intéraction suspension floculée / membrane." Toulouse, INSA, 1999. http://www.theses.fr/1999ISAT0023.
Full textVilleneuve, William. "Effet du colmatage bactérien sur la performance de l'ultrafiltration du lactosérum." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/67794.
Full textWhey, the main co-product of cheese manufacturing, can be valorized through protein concentration by ultrafiltration (UF). The main drawback of UF is fouling, mainly by protein and calcium phosphate, which lowers the process performance. It has recently been acknowledged that membranes can also be fouled by bacterial cells and biofilms during whey UF. Numerous authors have demonstrated the presence of biofilms on membranes and investigated many parameters that can modulate the bacterial diversity of these biofilms. However, the impact of biofouling on the performance of whey UF is still unknown. The general objective of this study was therefore to quantify the loss of performance caused by bacterial cell deposition and biofilm formation during whey UF. The first objective demonstrated that bacterial cell deposition could increase the flux drop caused by whey protein fouling during dead-end UF, while it had minor effects on mineral fouling. Partial neutralization of bacterial cells and protein electrostatic charges may have reduced repulsions led to the formation of a more compact cake. The results of the second objective confirmed, during crossflow UF of sweet whey, that biofouling from the intrinsic microflora of the filtration system could lower permeation fluxes after 18 h of filtration. Biofouling also increased membrane hydraulic resistances, allowing the calculation of biofouling-specific resistances (Rbio), which accounted for 31 to 44% of the total fouling layer resistances. These results demonstrate that biofouling can negatively affect the performance of whey processing by UF and highlight the need for solutions to mitigate biofouling.
Thekkedath, Anju. "Etude du colmatage de membranes d'ultrafiltration (UF) par les matières organiques naturelles (MON)." Phd thesis, Université d'Angers, 2007. http://tel.archives-ouvertes.fr/tel-00527504.
Full textAyala, Bribiesca Erik. "Colmatage des membranes par les minéraux et les protéines en cours d'électrodialyse conventionnelle." Thesis, Université Laval, 2005. http://www.theses.ulaval.ca/2005/23022/23022.pdf.
Full textThe aim of this project was to investigate the effect of the composition in calcium, and carbonate of a model whey protein solution to be treated by electrodialysis on the fouling of ion-exchange membranes. The pH of the concentrate was also controlled at different values to study its influence on membrane fouling. Membrane integrity was determined by membrane parameters and completed with fouling characterization by macroscopic and microscopic pictures, ATR-FTIR analyses and electron microscope images coupled to elementary X-ray mapping to identify the deposits. A protein layer was formed when the pH of the concentrate compartment was acidic, while a mineral deposit occurred when pH was basic. From these results, a stack arrangement is proposed to prevent the formation of mineral and protein fouling.
Ayala-Bribiesca, Erik. "Colmatage des membranes par les minéraux et les protéines en cours d'électrodialyse conventionnelle." Master's thesis, Université Laval, 2005. http://hdl.handle.net/20.500.11794/18118.
Full textThe aim of this project was to investigate the effect of the composition in calcium, and carbonate of a model whey protein solution to be treated by electrodialysis on the fouling of ion-exchange membranes. The pH of the concentrate was also controlled at different values to study its influence on membrane fouling. Membrane integrity was determined by membrane parameters and completed with fouling characterization by macroscopic and microscopic pictures, ATR-FTIR analyses and electron microscope images coupled to elementary X-ray mapping to identify the deposits. A protein layer was formed when the pH of the concentrate compartment was acidic, while a mineral deposit occurred when pH was basic. From these results, a stack arrangement is proposed to prevent the formation of mineral and protein fouling.
Neggaz, Benhabiles Yakout. "Caractérisation du colmatage lors de l'ultrafiltration de solutions colloïdales sur membranes organiques et étude de l'amélioration de la qualité de séparation sur dépôt minéral." Compiègne, 1998. http://www.theses.fr/1998COMP1094.
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