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Pressure filtration of Australian bagasse pulp

Rainey, Thomas J., Doherty, William O.S., Martinez, D. Mark, Brown, Richard J., & Kelson, Neil A. (2010) Pressure filtration of Australian bagasse pulp. Transport in Porous Media, 86(3 ), pp. 737-751.

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Abstract

A one-dimensional pressure filtration model that can be used to predict the behaviour of bagasse pulp has been developed and verified in this study.The dynamic filtration model uses steady state compressibility parameters determined experimentally by uniaxial loading. The compressibility parameters M and N for depithed bagasse pulp were determined to be in the ranges 3000–8000kPa and 2.5–3.0 units, respectively. The model also incorporates experimentally determined steady state permeability data from separate experiments to predict the pulp concentration and fibre pressure throughout a pulp mat during dynamic filtration. Under steady state conditions, a variable Kozeny factor required different values for the permeability parameters when compared to a constant Kozeny factor. The specific surface area was 25–30% lower and the swelling factor was 20–25% higher when a variable Kozeny factor was used. Excellent agreement between experimental data and the dynamic filtration model was achieved when a variable Kozeny factor was used.

Impact and interest:

3 citations in Scopus
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1 citations in Web of Science®

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103 since deposited on 17 Nov 2010
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ID Code: 38600
Item Type: Journal Article
Keywords: filtration, bagasse, pulp, dynamic, permeability
DOI: 10.1007/s11242-010-9649-x
ISSN: 0169-3913
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CHEMICAL ENGINEERING (090400)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Divisions: Current > Research Centres > Centre for Tropical Crops and Biocommodities
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Research Centres > High Performance Computing and Research Support
Copyright Owner: Copyright 2010 Springer
Copyright Statement: The original publication is available at SpringerLink http://www.springerlink.com
Deposited On: 18 Nov 2010 09:52
Last Modified: 01 Mar 2012 00:20

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