Investigation of Filter Cake Stability using Numerical Simulation Technique

A Sand, Martti Toivakka, T Hjelt

    Forskningsoutput: Kapitel i bok/konferenshandlingKonferensbidragVetenskapligPeer review

    2 Citeringar (Scopus)

    Sammanfattning

    Filter cake stability was described by a particle dynamics model. The significance of Brownian motion relative to an absorption flow on the deterioration of the filter cake was of particular interest in the study. Brownian motion was modeled by applying a randomly directed force to each particle at each time step. Monodisperse and polydisperse systems of electrostatically stabilized rigid spheres were examined. The results characterize the microscopic structures, density profiles and thicknesses of filter cakes. The disruption of a dense filter cake is caused by diffusion if the dewatering rate or particle size is small or temperature is high. For typical dewatering rates, only particles less than 0.2 { extmu}m are able to diffuse a significant amount to cause a gradient in particle concentration over a filter cake.
    OriginalspråkOdefinierat/okänt
    Titel på gästpublikationTAPPI Advanced Coating Fundamentals Symposium
    Sidor
    StatusPublicerad - 2006
    MoE-publikationstypA4 Artikel i en konferenspublikation
    Evenemangconference -
    Varaktighet: 1 jan 2010 → …

    Konferens

    Konferensconference
    Period01/01/10 → …

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