Selective Particle Deposition in Crossflow Filtration
Authors:
- 1 June 1989
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 24 (7-8) , 517-540
Abstract
To study the mechanism of particle deposition in crossflow filtration, hydrodynamic forces exerted on a spherical particle touching the surface of filter medium are analyzed to derive the critical selective cut-diameter of the deposited particles under various crossflow velocities and filtration rates in a crossflow filtration system. Experimental data of turbulent crossflow filtration of dilute light calcium carbonate suspension agree with the prediction of this theory within 30% error under the crossflow velocity of from 0.57 to 1.14 m/s. Equations to estimate the characteristics of crossflow filtration, such as steady-state filtration rate and average specific resistance of cake, are also presented.Keywords
This publication has 12 references indexed in Scilit:
- Shear-induced transport of a particle layer along a porous wallChemical Engineering Science, 1987
- A CONCENTRATION POLARIZATION MODEL FOR THE FILTRATE FLUX IN CROSS-FLOW MICROFILTRATION OF PARTICULATE SUSPENSIONSChemical Engineering Communications, 1986
- Factors affecting flux in crossflow filtrationDesalination, 1985
- Lateral migration of spherical particles in porous flow channels: application to membrane filtrationChemical Engineering Science, 1984
- Velocity distribution and prediction of friction factor and pressure gradient in a turbulent porous tube flow with injection or suction.JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1981
- The hydrodynamic force resisting the approach of a sphere to a plane permeable wallJournal of Colloid and Interface Science, 1979
- The lateral migration of a spherical particle in two-dimensional shear flowsJournal of Fluid Mechanics, 1976
- Critical Tractive Condition of Particulate Beds under PermeationChemical engineering, 1970
- A sphere in contact with a plane wall in a slow linear shear flowChemical Engineering Science, 1968
- On the motion of small spheroidal particles in a viscous liquidJournal of Fluid Mechanics, 1956