Silica—iron binary oxide suspensions

Anderson, P. R., and Benjamin, M. M. (1990b). Constant capacitance surface complexation model. Adsorption in silica-iron binary oxide suspensions. Am. Chem. Soc. Symp. Ser. 416, 272-281. [Pg.254]

Adsorption in Silica—Iron Binary Oxide Suspensions... [Pg.272]

A conceptual and mechanistic model of particle interactions in silica-iron binary oxide suspensions is described. The model is consistent with a process involving partial Si02 dissolution and sorption of silicate onto Fe(OH)3. The constant capacitance model is used to test the mechanistic model and estimate the effect of particle interactions on adsorbate distribution. The model results, in agreement with experimental results, indicate that the presence of soluble silica interferes with the adsorption of anionic adsorbates but has little effect on cationic adsorbates. [Pg.272]

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