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Experimental analysis of particle deposition on single collectors
Author(s) -
Rajagopalan R.,
Tien Chi
Publication year - 1977
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.5450550304
Subject(s) - electrokinetic phenomena , particle (ecology) , deposition (geology) , particle deposition , sedimentation , flocculation , materials science , mechanics , physics , chemistry , nanotechnology , geology , oceanography , paleontology , sediment , organic chemistry , turbulence
Experimental studies of particle deposition from liquid suspensions of monodispersed particles flowing past single spherical collectors were carried out and compared with theoretical results based on trajectory calculations. The experimental observations indicate the significant effect of particle flocculation and thus suggest the importance of sedimentation as a collection mechanism. The agreement between the theoretical results and the experimental data is good when the surface force interactions are favorable for collection. However, when the electrokinetic repulsion dominates in the neighborhood of the collector, the rate of collection drops rapidly, although not to zero as predicted by theory.