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Facilitated Transport of Charged Colloids in Geologic Media

Published online by Cambridge University Press:  15 February 2011

Shinya Nagasaki ,
Satoru Tanaka  and
Atsuyuki Suzuki
Shinya Nagasaki
Affiliation:
The Department of Quantum Engineering and Systems Science, The University of Tokyo, Tokyo 113, Japan
Satoru Tanaka
Affiliation:
The Department of Quantum Engineering and Systems Science, The University of Tokyo, Tokyo 113, Japan
Atsuyuki Suzuki
Affiliation:
The Department of Quantum Engineering and Systems Science, The University of Tokyo, Tokyo 113, Japan
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Abstract

Diffusion of a charged colloidal particle in a two-dimensional simple shear flow was studied by means of Monte Carlo calculations and the effects of a bounding wall and charge of a particle on convective diffusion were elucidated. Taking charge effects into account has a marked effect on the diffusion behavior of the particle, increasing the migration distance. Diffusion of latex colloidal particles in a quartz-powder packed cell was also studied by through-diffusion methods. For the large latex colloidal particles, the effective diffusion coefficients measured are larger than those estimated by Stokes-Einstein equation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 157
Copyright
Copyright © Materials Research Society 1995

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References

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