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Influence of Floe Size Distribution on Clarification
Author(s) -
Reed Gregory D.,
Mery Patricia C.
Publication year - 1986
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1986.tb05803.x
Subject(s) - breakup , particle size , flocculation , particle size distribution , suspension (topology) , clarifier , materials science , coulter counter , shear rate , mechanics , chromatography , mathematics , chemistry , physics , environmental science , composite material , environmental engineering , rheology , microbiology and biotechnology , homotopy , pure mathematics , biology
The purpose of this study was to examine the relationship between optimum coagulant dose and optimum clarification rate in order to design a smaller, more efficient clarifier. The optimum coagulant dose produced a flocculant suspension containing a low total particle count, a floc with a large mean size, and a supernatant with a low count of small particles. The use of an electronic particle counter resulted in size distribution data that were an order of magnitude smaller than the actual size. This was attributed to floc breakup produced by the high fluid shear in the measuring aperture.