Colloid retention behavior in environmental porous media challenges existing theory
Article first published online: 3 JUN 2011
©2005. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 86, Issue 18, pages 179–180, 3 May 2005
How to Cite
2005), Colloid retention behavior in environmental porous media challenges existing theory, Eos Trans. AGU, 86(18), 179–180, doi:10.1029/2005EO180002., , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Chances are the quality of your drinking water was improved by filtration through porous media at some point before it reached your tap, perhaps naturally by transport through the subsurface, or purposefully by passage through an engineered sand filter.
Engineered filtration processes have been utilized for decades, and these processes are monitored to ensure the removal of a required degree of particles, e.g., colloids (biological and non-biological particles ranging between a few tens of nanometers to ten microns), from water. Filtration is manifest in both natural and engineered contexts, e.g., by the relatively high quality of spring water, and by the difficulty of targeting the delivery of microbes, zero-valent iron, and other colloids with novel properties to contaminated locales in the subsurface for the purpose of remediation.