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Evaluation of Consolidation Behavior by Combined Membrane Filtration and Stepped Cake Compression
Author(s) -
Iritani Eiji,
Katagiri Nobuyuki,
Yoshida Tomotaka
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700102
Subject(s) - filter cake , consolidation (business) , dewatering , slurry , materials science , permeability (electromagnetism) , porosity , composite material , compression test , compressive strength , bentonite , filtration (mathematics) , compression (physics) , membrane , geotechnical engineering , chemistry , chromatography , mathematics , engineering , biochemistry , statistics , accounting , business
A method is proposed for determining the compression‐permeability (C‐P) data expressed as the dependences of the local specific cake resistance and local cake porosity on the solid compressive pressure from a combined membrane filtration and stepped cake compression test. Filtration employing a membrane with a high flow resistance, which provided the pressure dependence of the average specific cake resistance, was followed by step‐up compression, which gave cake porosities at several compressive pressures. On the basis of these data collected as the time variation of the dewatering volume, the compression‐permeability data of bentonite slurry were evaluated. Consolidation behaviors of the filter cake and semi‐solid material were accurately described on basis of the C‐P data.