Mathematical Model for the Sequestering of Chemical Contaminants by Magnetic Particles
Publication: Journal of Environmental Engineering
Volume 136, Issue 11
Abstract
A mathematical model is developed and implemented to characterize the pickup of various liquid chemical contaminants by polyethylene-coated magnetic particles. The model and its associated experimental and analytical protocols were applied to a wide range of liquid chemicals in order to gain insights into the physical basis for the pickup phenomenon. The characteristics of the pickup isotherms range between “ideal” and “nonideal” behaviors that are reflected in the mathematical model by a single parameter, , where corresponds to ideal behavior and corresponds to a departure from idealized behavior that is directly quantified by the magnitude of . The parameter is also related to the efficiency of pickup, and since most isotherms observed in the study deviate from ideality, the high efficiency of pickup observed in these systems has been attributed in part to this deviation. The proposed model and its associated experimental and analytical protocols demonstrate great potential for the systematic evaluation of the uptake of chemical contaminants using magnetic particle technology.
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Acknowledgments
The writers are grateful to Mrs. Elizabeth Bigger for her assistance with some of the computer calculations in this work.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 136 • Issue 11 • November 2010
Pages: 1255 - 1259
Copyright
© 2010 ASCE.
History
Received: Oct 28, 2009
Accepted: May 26, 2010
Published online: May 29, 2010
Published in print: Nov 2010
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