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GAC adsorption of intermittently loaded pesticides

Yoshihiko Matsui, Tasuku Kamei, Etsuro Kawase, Vernon L. Snoeyink and Norihito Tambo
Journal (American Water Works Association)
Vol. 86, No. 9, Arsenic (September 1994), pp. 91-102
Stable URL: http://www.jstor.org/stable/41294815
Page Count: 12
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Abstract

The removal efficiency of intermittently applied pesticides by a granular activated carbon bed preloaded with background organic matter (BOM) was examined using the rapid small-scale column test. Preloading with BOM decreased the removal efficiency of the pesticides. The removal efficiency was a function of the amount of BOM adsorbed, but was unrelated to the influent concentration of the pesticide. A modeling approach employing the ideal adsorbed solution theory and a linear driving-force expression for intraparticle surface diffusion adequately simulated these phenomena.

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