VZJ
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via ISI Web of Science (34)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Crist, J. T.
Right arrow Articles by Steenhuis, T. S.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Crist, J. T.
Right arrow Articles by Steenhuis, T. S.
GeoRef
Right arrow GeoRef Citation
Agricola
Right arrow Articles by Crist, J. T.
Right arrow Articles by Steenhuis, T. S.
Related Collections
Right arrow Colloids
Right arrow Microbial and Colloid Transport Models

Pore-Scale Visualization of Colloid Transport and Retention in Partly Saturated Porous Media

John T. Crista, John F. McCarthyb, Yuniati Zevia, Philippe Baveyec, James A. Throopa and Tammo S. Steenhuis*,a

a Dep. of Biological and Environmental Engineering, Riley-Robb Hall, Cornell University, Ithaca, NY 14853
b Dep. of Geological Sciences, Univ. of Tennessee, Knoxville, TN 37996
c Dep. of Crop and Soil Sciences, Cornell Univ., Ithaca, NY 14853


View larger version (47K):

[in a new window]
  		Fig. 1. Principal components of the experimental setup. Not shown are the CDC camera and the computer system.

 


View larger version (18K):

[in a new window]
  		Fig. 2. Moisture content of packed-sand layers 2 h after application of the colloidal suspension. Values reflect the average of five experiments; error bars shown are one standard deviation.

 


View larger version (121K):

[in a new window]
  		Fig. 3. Menisci or air–water interfaces connecting sand grains after application.

 


View larger version (56K):

[in a new window]
  		Fig. 4. (a) Menisci or air–water interfaces after 6 h of drainage; (b) colloid–water distribution after application of the colloidal suspension. Rewetting of the sand eliminated the static air–water interfaces.

 


View larger version (107K):

[in a new window]
  		Fig. 5. Distribution of 0.8-µm hydrophilic colloids ({approx}3 x 107 particles mL–1) after application of the colloidal suspension. Values shown are depths below the top layer of the sand column.

 


View larger version (64K):

[in a new window]
  		Fig. 6. (a) Blue banding patterns of 0.8-µm hydrophilic colloids ({approx}3 x 107 particles mL–1) after application of the colloidal suspension; (b) 1 h later. With time and continued drainage, the banding patterns widened and darkened to a deeper blue hue.

 


View larger version (31K):

[in a new window]
  		Fig. 7. Water films at cross section of two grains with pendular ring.

 


View larger version (29K):

[in a new window]
  		Fig. 8. Trapped air bubble between narrowly separated, hydrophilic solid surfaces.

 




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 2004 by the Soil Science Society of America.