We present here results for filtration experiments with refined and fractionated chemical pulp suspensions. The properties of consolidating fibre network are described in terms of permeability and structural pressure. The main objective of this work was to clarify the effect of fibre and pulp properties on the dynamics of the filtration and on the rheological properties of filtrating fibre network. The relevance of coarseness, average fibre length, fibre length distribution and Canadian Standard Freeness on permeability constant and structural pressure was evaluated. The filtration properties could be correlated with fines fraction and coarseness of fibres.
|Title of host publication||Rheological materials in process industry|
|Subtitle of host publication||ReoMaT Final Report|
|Place of Publication||Espoo|
|Publisher||VTT Technical Research Centre of Finland|
|Publication status||Published - 2008|
|MoE publication type||A3 Part of a book or another research book|
Haavisto, S. (2008). Application of ultrasound anemometry for measuring filtration of fibre suspensions: effect of fibre and pulp properties. In M. Kataja (Ed.), Rheological materials in process industry: ReoMaT Final Report (pp. 84-93). VTT Technical Research Centre of Finland. http://www.vtt.fi/inf/pdf/tiedotteet/2008/T2428.pdf