Hydrophobicity of Soil Colloids and Heavy Metal Mobilization: Effects of Drying.

Autor:	Klitzke, Sondra1 sondra.klitzke@tu-berlin.de, Lang, Friederike1
Předmět:	*Soil composition *Heavy metals *Diffusion *Soil physical chemistry Colloids Hydrophobic surfaces Drying Dispersion (Chemistry)
Zdroj:	Journal of Environmental Quality. Jul/Aug2007, Vol. 36 Issue 4, p1187-1193. 7p.
Abstrakt:	This article discusses how the drying of soil may increase the hydrophobicity of soil and affect the mobilization of organic carbon and colloid-associated heavy metals after re-wetting. According to the authors, air drying of soil samples from a former sewage farm, a municipal park, and a shooting range site increased hydrophobicity of the solid phase but did not affect the hydrophobicity of the dispersed colloids. They concluded that drying-induced colloid mobilization is not caused by a change in the physicochemical properties of the colloids.
Databáze:	GreenFILE
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