Colloids mobility

Ryan JN, Elimelech M (1996) Colloid mobilization and transport in groundwater. Colloid Surf A-Physicochem Engin Aspects 107 1-56... 

Ryan, J. N., and P. M. Gschwend (1990), "Colloid Mobilization in Two Atlantic Coastal Plan Aquifers Field Studies", Water Resources Research 26, 307-322. 

Seaman, J.C. Bertsch, P.M. (2000) Selective colloid mobilization through surface-charge manipulation. Environ. Sci. Techn. 34 3749-... 

T0688 Savannah River Ecology Laboratory, Selective Colloid Mobilization... 

Selective colloid mobilization enhances removal of strongly sorbed contaminants, increasing remediation efficiency. 

Preliminary information indicates that the annual cost of selective colloid mobilization may be comparable to pump and treat, but that the cleanup would be faster, which would decrease cleanup costs (D14840N, p. 183). It is estimated that using the technology at one groundwater remediation project at the Department of Energy s Savannah River site will reduce cleanup costs by several million dollars and cut the cleanup time in half (D14839U, p. 8). 

Johnson, C.R. et al., Colloid mobilization in the field using citrate to remediate chromium, Ground Water, 39, 895, 2001. 

Ryan, J.N. and Gschwend, P.M., Colloid mobilization in two Atlantic coastal plain aquifers Field studies, Water Resour. Res., 26, 307, 1990. 

Lenhart, J. J. Saiers, J. E. Colloid Mobilization in Water-Saturated Porous Media under Transient Chemical Conditions, Environ. Sci. Technol. 2003, 37, 2780-2787. 

Little dissolution of quartz and a fortiori of the siliceous constituents (micas, phytolites, etc.) is possible, in the top layer of the soil. On the other hand, kaolinite which is the exclusive clay mineral in all the soils of the bioclimatic sequence, must be stable, since at pH 6—7 and for dissolved silica near 10 " mol/1, the solutions are saturated with respect to this mineral, when dissolved Al exceeds 10 mol/1, i.e. 10 mg/1 (Gardner, 1970). The addition of Al in the chemical charge of drainage waters might result from the colloidal mobility of this element. 

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