volume 40, issue 5, P969-974 2006
DOI: 10.1016/j.watres.2006.01.006
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Jörgen Jönsson, Staffan Sjöberg, Lars Lövgren

Abstract: Sorption processes involving secondary iron minerals may significantly contribute to immobilisation of metals in soils and surface waters. In the present work the effect of dissolved organic matter (DOM) from a concentrated bog-water on the adsorption of Cu(II) onto schwertmannite (Fe8O8(OH)6SO4) and goethite (alpha-FeOOH) has been studied. The acid/ base behaviour of DOM up to pH 6 was explained by assuming a diprotic acid with a density of carboxylate groups of 6.90 microeq (mg C)(-1). The resulting acidity …

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