The influence of natural organic matter on the adsorption properties of mineral particles in lake water

Autor: Ruth Stierli, Sabine Goldberg, Peter Baccini, Erwin Grieder
Rok vydání: 1982
Předmět:
Zdroj: Schweizerische Zeitschrift für Hydrologie. 44:99-116
ISSN: 1420-9055
0036-7842
DOI: 10.1007/bf02502192
Popis: The adsorption characteristics of sediment particles from a prealpine Swiss lake were compared with those of γ-aluminum oxide. Under lake water conditions, i.e. with particle concentration of 2–16 mg/1 and DOC concentrations of 1–4 mg/1 at pH=8, the adsorption of copper, zinc and orthophosphate is reduced significantly by the presence of natural organic matter (NOM). It is postulated that the binding sites of the natural mineral surfaces are occupied almost completely by NOM under natural conditions. A simple ligand exchange model can explain the observed phenomena.
Databáze: OpenAIRE