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Transport of Gellan Gum Microbeads in Soil Columns of Various Grain Size Distributions
Author(s) -
Moslemy Peyman,
Millette Denis,
Guiot Serge R.,
Neufeld Ronald J.
Publication year - 2004
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.5450820515
Subject(s) - gellan gum , suspension (topology) , grain size , materials science , chromatography , microsphere , composite material , chemistry , chemical engineering , mathematics , food science , homotopy , pure mathematics , engineering
Abstract The transport of gellan gum microbeads as potential cell carriers was investigated in horizontal columns packed with different grain size classes of gravel (2–16 mm) and sand (0.25–2 mm). A suspension of microbeads was pulsed into each column for 6 h, followed by injection of water for 42 h. In general, the total amount of microbeads travelling across a given section of the column increased with injection time but decreased towards the column outlet, varying as a direct function of grain size. The results of this study demonstrate the feasibility of the transport of gellan gum microbeads through medium sand to medium gravel across distances up to 110 cm.