This happens because a closer approach to individual particles increase the probability of Van der Waals attraction . Colloids are a particle ranging in size from 1nm to 1000nm. Bacteria 5-0.2m m Atoms Important in spread of contaminants within aquifers Determination of the source of contaminants from the surface. Electrostatic forces generated from electrical attraction or repulsion between points of neighboring materials. Stability promoted by decreased ion concentration in the water, a decrease in divalent ions and exposure to a pH different from that when the colloid formed.
Treatment parallels treatment of sorption.
It is possible to have faster transport of contaminants than water due to size exclusion phenomenon. The Guoy layer is also key to the process of membrane filtration. Again, K' AC is not a true constant as before. This formulation has important consequences to displacement reactions in natural sediments. An interesting consequence of the square term thus follows.