Journal ArticleDOI
Solid/liquid separation of flocculated suspensions
Kerry A. Landman,Lee R. White +1 more
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In this paper, a generalized approach to understand and prediction of solid-liquid separation methods based on the measurement of fundamental material properties is reviewed and applied to a variety of thickening and filtration processes.About:
This article is published in Advances in Colloid and Interface Science.The article was published on 1994-08-29. It has received 169 citations till now.read more
Citations
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Natural organic matter fouling of microfiltration membranes: Prediction of constant flux behavior from constant pressure materials properties determination
TL;DR: In this paper, the characteristics of calcium-aggregated humic acid assemblages that deposit on microfiltration membranes are determined using a novel approach involving the analysis of filtration and deliquoring behavior as a function of time over a range of constant applied pressures.
Journal ArticleDOI
Modeling of solid-bowl batch centrifugation of flocculated suspensions
TL;DR: In this article, the volume fraction dependent material parameters of compressive yield stress and hindered settling function are used to describe the solid-liquid separation of a two-phase system caused by centrifugal acceleration.
Journal ArticleDOI
Compressive and shear properties of flocculated kaolinite–polyacrylamide suspensions
Mustafa S. Nasser,A.E. James +1 more
TL;DR: In this paper, the compressive and shear properties of anionic polyacrylamides (PAM) and cationic PAM were investigated at pH 7, and it was found that the magnitudes of the yield stress, critical stress, elastic and viscous modulus are strongly dependent upon floc structure.
Journal ArticleDOI
Software for the design and simulation of gravity thickeners
TL;DR: In this article, a software was developed for the design and simulation of batch and continuous thickeners based on the steady state and the transient solutions of the phenomenological theory of sedimentation.
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Dewatering of fibre suspensions by pressure filtration
TL;DR: In this paper, a theoretical and experimental study of dewatering of fiber suspensions by uniaxial compression is presented, where solutions of a one-dimensional model are discussed and asymptotic limits of fast and slow compression are explored.
References
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Journal ArticleDOI
Sedimentation in a dilute dispersion of spheres
TL;DR: In this article, the authors considered a large number of identical small rigid spheres with random positions which are falling through Newtonian fluid under gravity and determined the mean value of the velocity of a sphere (U).
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The consolidation of concentrated suspensions. Part 1.—The theory of sedimentation
Richard Buscall,Lee R. White +1 more
TL;DR: In this paper, the concentration or consolidation of suspensions of fine particles under the influence of a gravitational field has been analyzed and a constitutive equation is suggested for irreversibly flocculated suspensions undergoing consolidation which embodies the concept of a concentration-dependent yield stress Py(ϕ).
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The rheology of strongly-flocculated suspensions
TL;DR: In this paper, the authors investigated the rheology of strongly-flocculated dispersions of colloidal particles in a continuous network and showed that these networks possess a true yield stress in both shear and uniaxial compression (as realised in a centrifuge).
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The resolution of shocks and the effects of compressible sediments in transient settling
TL;DR: In this article, a quantitative theory covering the full range of processes from transient settling of large, stable particles to the slow consolidation of flocculated suspensions of submicron particles is proposed.
Journal ArticleDOI
The continuous‐flow gravity thickener: Steady state behavior
TL;DR: In this paper, the equations governing consolidation in a continuous-flow gravity thickener are developed based on the assumption that a flocculated suspension possesses a compressive yield stress Py(ϕ) that is a function of local volume fraction only.
Related Papers (5)
The consolidation of concentrated suspensions. Part 1.—The theory of sedimentation
Richard Buscall,Lee R. White +1 more