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A method for determining the settling behavior of dense suspensions
Author(s) -
Al Taweel A. M.,
Farag H. A.,
Fadaly O.,
Mackay G. D. M.
Publication year - 1983
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450610407
Subject(s) - settling , suspension (topology) , compaction , sedimentation , sediment , materials science , subsidence , mechanics , geotechnical engineering , exponent , geology , physics , thermodynamics , mathematics , geomorphology , homotopy , pure mathematics , linguistics , philosophy , structural basin
An accelerated method for evaluating the compaction behavior of dense suspensions is presented, in which centrifugal force is used to enhance settling rates and a highly‐compensated compound pendulum is used to detect the resultant small shifts in centre of gravity. The results obtained by following the temporal variation in suspension characteristics indicate that a Richardson and Zaki type of equation can describe the subsidence of very concentrated suspensions. The exponent n , and the ultimate sediment compaction density were found to be strongly influenced by small changes in the physicochemical characteristics of the suspended solids.