Skip to Main content Skip to Navigation
Journal articles

Clogging by sieving in microchannels: Application to the detection of contaminants in colloidal suspensions

Abstract : We report on a microfluidic method that allows measurement of a small concentration of large contaminants in suspensions of solid micrometer-scale particles. To perform the measurement, we flow the colloidal suspension through a series of constrictions, i.e. a microchannel of varying cross-section. We show and quantify the role of large contaminants in the formation of clogs at a constriction and the growth of the resulting filter cake. By measuring the time interval between two clogging events in an array of parallel microchannels, we are able to estimate the concentration of contaminants whose size is selected by the geometry of the microfluidic device. This technique for characterizing colloidal suspensions offers a versatile and rapid tool to explore the role of contaminants on the properties of the suspensions.
Document type :
Journal articles
Complete list of metadata

Cited literature [28 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01057217
Contributor : Alban Sauret Connect in order to contact the contributor
Submitted on : Thursday, August 21, 2014 - 4:41:12 PM
Last modification on : Tuesday, October 19, 2021 - 10:59:35 PM
Long-term archiving on: : Thursday, November 27, 2014 - 1:11:37 PM

Files

APL_Sieving.pdf
Files produced by the author(s)

Identifiers

`

Citation

Alban Sauret, Erin C. Barney, Adeline Perro, Emmanuel Villermaux, Howard A. Stone, et al.. Clogging by sieving in microchannels: Application to the detection of contaminants in colloidal suspensions. Applied Physics Letters, American Institute of Physics, 2014, 105, pp.074101. ⟨10.1063/1.4893459⟩. ⟨hal-01057217⟩

Share

Metrics

Record views

351

Files downloads

567