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A double-layer model for ion adsorption onto metal oxides, applied to experimental data and to natural sediments of Lake Veluwe, The Netherlands by A. G. Brinkman is a Environmental Science article available to read on EtoBox.

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A colloid-chemical model is presented that describes sorption of ions onto metal oxide surfaces in aquatic systems. Multispecies competition for the available sorption sites and double-layer dielectric constant computation are main features of the model. The model is used for the analysis of sorption data regarding pure crystalline sorbents such as hematite (-Fe 2 0 3 ) and goethite (c-FeOOH). Adsorption of potential determining ions (hydroxyl), potassium and chloride, silicate and phosphate is calculated, showing good agreement with experimental data obtained from literature. Secondly, the model is applied to evaluate sorption data on natural sediments from Lake Veluwe, The Netherlands. The model shows a considerably improved description of sorption phenomena, compared to results from a classical (Langmuir) sorption analysis. The research shows that a combination of model development, model system study and experimental research in natural systems is very useful for a better understanding of environmental nutrient adsorption mechanisms.

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Author

A. G. Brinkman

Publisher

Springer; Springer-Verlag; Springer (Kluwer Academic Publishers); Kluwer Academic Publishers; Springer Science and Business Media LLC (ISSN 1573-5141)

Published

1993

Language

EN

Field

Environmental Science (Physical Sciences)