Abstract
The influence of adhesive forces on the structure of sedimentation layers has been considered. A theoretical model allowing calculation of the porosity of a sedimentation layer as a function of the particle size, the layer thickness, and the adhesive‐force level has been developed. Experiments in which these variables were changed have been carried out. The adhesive force was varied by changing the concentration of the electrolyte. A quantitative agreement between theory and experiment is observed for the porosity as a function of the particle size and the layer thickness; for the porosity as a function of the adhesive force this agreement is qualitative.
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REFERENCES
W. H. McAnally and A. J. Mehta, Coastal and Estuarine Fine Sediment Processes, Elsevier, Amsterdam-London-New York-Oxford-Paris-Shannon-Tokyo (2001).
A. Rushton, A. S. Ward, and R. G. Holdich, Solid-Liquid Filtration and Separation Technology, VCH, Wenheim-New York-Basel-Cambridge-Tokyo (1996).
R. J. Wakemen, M. N. Sabri, and E. S. Tarleton, Factors Affecting the Formation and Properties of Wet Compacts, Powder Technol., 65, 283–292 (1991).
E. Zvetanov, J. Dueck, and Th. Neeβe, Untersuchungen zur Porosität feinkörniger Filterkuchen, Chem. Ing. Techn., 71,No. 8, 835–839 (1999).
C. Kranenburg, The Fractal Structure of Cohesive Sediment Aggregates, Estuarine, Coastal and Shelf Sci., 39, 451–460 (1994).
K. Taki, Critical shear stress for cohesive sediment transport, in: W. H. McAnally and A. J. Mehta (Eds.), Coastal and Estuarine Fine Sediment Processes, Elsevier, Amsterdam-London-New York-Oxford-Paris-Shannon-Tokyo (2001).
J. Dueck, E. Zvetanov, and Th. Neeβe, Porositätsmodell für feinkörnige Filterkuchen, Chem. Ing. Techn., 71,No. 7, 692–696 (1999).
J. Dueck, E. Zvetanov, D. Purevjav, and Th. Neesse, Influence of Surface Forces on the Porosity of the Fine-Grained Filter Cakes, in: Proc. 14th Int. Congr. of Chemical and Process Engineering CHISA 2000, Praha, Czech Republic, Summaries, Vol. 2, Separation Process and Equipment. August 2000, p. 175.
J. Israelachvili, Intermolecular & Surface Forces, Academic Press, San Diego (1995).
H. Krupp, Particle Adhesion — Theory and Experiment, Adv. Colloid Interface Sci., 1, 111–239 (1967).
Van Oss and J. Carel, Interfacial Forces in Aqueous Media, Marcel Dekker, New York (1994).
R. Hein, Th. Hucke, M. Stinz, and S. Ripperger, Analysis of Adhesion Forces between Particles and Wall Based on the Vibration Method, Particle & Particle System Characterization, 19, 269–276 (2002).
K. Muehle, K. Domasch, and Th. Neeβe, Zur physikalisch begründeten Modellierung des Flockungsprozesses, Chem. Tech., 34, 14–18 (1982).
A. D. Zimon and R. F. Leshcenko, Colloidal Chemistry [in Russian], Agar, Moscow (2001).
K. S. Krasnov (Ed.), Physical Chemistry [in Russian], Vysshaya Shkola, Moscow (2001).
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Dueck, J.G., Purevjav, D. & Kilimnik, D.Y. A Contribution to the Theory of Porosity of Fine‐Grained Sediments. Journal of Engineering Physics and Thermophysics 77, 93–102 (2004). https://doi.org/10.1023/B:JOEP.0000020722.04941.c5
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DOI: https://doi.org/10.1023/B:JOEP.0000020722.04941.c5