Journal ArticleDOI
Concentrated dispersions of charged colloidal particles: Sedimentation, ultrafiltration and diffusion
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TLDR
In this paper, the formation and structure of sedimentation and/or filtration layers built up by charged colloidal particles were studied, and a theoretical model based on the force balance on a given particle in the layer was developed.About:
This article is published in Colloids and Surfaces A: Physicochemical and Engineering Aspects.The article was published on 1993-12-13. It has received 82 citations till now. The article focuses on the topics: Particle size & Particle.read more
Citations
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Fouling in membrane bioreactors used in wastewater treatment
TL;DR: In this paper, a review of more than 300 publications on membrane bioreactor fouling is presented, and the authors propose updated definitions of key parameters such as critical and sustainable flux, along with standard methods to determine and measure the different fractions of the biomass.
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Critical and sustainable fluxes: Theory, experiments and applications
TL;DR: The concept of critical flux has been used in a number of different ways often without explicit redefinition as mentioned in this paper, and it has been clarified both theoretically and from an experimental viewpoint, and a link with the concept of sustainable flux and an approach given for the determination of the apparent sustainable flux.
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The Use of Clay as an Engineered Barrier in Radioactive-Waste Management a Review
Patrik Sellin,Olivier X. Leupin +1 more
TL;DR: Bentonite and bentonite/sand mixtures are selected primarily because of their low hydraulic permeability in a saturated state, which ensures that diffusion will be the dominant transport mechanism in the barrier as mentioned in this paper.
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A unifying model for concentration polarization, gel-layer formation and particle deposition in cross-flow membrane filtration of colloidal suspensions
TL;DR: In this paper, a model was proposed to describe cross-flow filtration of colloidal particles and molecules, where surface and hydrodynamic interactions were used to predict the variation of the osmotic pressure and diffusion coefficient with the volume fraction of the suspension.
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In situ monitoring techniques for concentration polarization and fouling phenomena in membrane filtration.
TL;DR: State-of-the-art in situ monitoring techniques for concentration polarization, cake formation and fouling phenomena in pressure-driven membrane filtration are critically reviewed and emphasis is given to techniques relevant to fouling phenomenon where particles and solutes accumulate on the membrane surface such that pore plugging is negligible.
References
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Journal ArticleDOI
The London—van der Waals attraction between spherical particles
TL;DR: In this article, the London-v.d. interaction between two spherical particles is computed as a function of the diameters and the distance separating them, and a table is calculated which enables numerical application of the formulae derived.
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Viscous flow in multiparticle systems: Slow motion of fluids relative to beds of spherical particles
TL;DR: In this paper, a mathematical treatment is developed on the basis that two concentric spheres can serve as the model for a random assemblage of spheres moving relative to a fluid, and the appropriate boundary conditions resulting from these assumptions enable a closed solution to be obtained satisfying the Stokes-Navier equations omitting inertia terms.
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DLVO and hydration forces between mica surfaces in Li+, Na+, K+, and Cs+ electrolyte solutions: A correlation of double-layer and hydration forces with surface cation exchange properties
TL;DR: In this article, a simple and remarkably successful method of analysis of the charging mechanism at the mica surface suggests a novel approach to the determination of the hydrated radius of adsorbed cations.
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Charge renormalization, osmotic pressure, and bulk modulus of colloidal crystals: Theory
S. Alexander,S. Alexander,Paul Chaikin,P. Grant,G. J. Morales,Philip Pincus,Philip Pincus,Daniel Hone +7 more
TL;DR: The relationship between the actual charge and the renormalized charge by solving the Boltzmann-Poisson equation numerically in a spherical Wigner-Seitz cell was analyzed in this article.
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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).