Electroosmosis in Porous Media

Electroosmosis in porous media Electroosmotic flow in porous media... 

The effects of particle size on the electric potential distribution are first considered. In most previous analytical or numerical modeling of electroosmosis in porous media, the EDL was mostly assumed to be small compared to the particle size so that the Debye-Hiickel theory would lead to simplified expressions for the... 

The topics chosen for the sessions were typically chosen so as to represent problems common to all three fields of application. For example, Micromechanics of Porous Media, Electromechanical Interactions, Chemical and Electroosmosis, Nuclear Magnetic Resonance in Porous Media, Dual Porosity. The symposium included 49 oral presentations and a dozen poster presentations. The meeting attracted 60 participants from 15 countries Australia, Belgium, Brazil, Canada, Finland, France, Germany, Italy, The Netherlands, Poland, Portugal, Sweden, Switzerland, United Kingdom, United States. 

Wang M, Chen SY (2007) Electroosmosis in homogeneously charged micro- and nanoscale random micro porous media. J Coll Interface Sci 314 264-273... 

Electrokinetic processing derives its name from one of the four major electrokinetic phenomena. These arise from the coupling between electrical and hydraulic flows and gradients in suspensions and porous (soil) media, which can be responsible for electroosmosis, streaming potential, electrophoresis, and migration or sedimentation... 

Mention was made previously of the electroosmotic flow of water to the cathode encountered in electrophoresis in various stabilizing media. This phenomenon plays a relatively small role in free electrophoresis because of the small surface area in contact with the electrolyte solution in the U tube. However, it is a very familar subject to workers who deal with electrical forces in membranes and porous materials. The well-known streaming potential produced by forcing liquid under pressure through a porous medium is closely related to the electroosmotic flow. The potential of the surface to the liquid (f potential) can be determined by measurements of the volume (V) of liquid transported per second by electroosmosis, through the use of equation (1), where i denotes the current strength, k the specific... 

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