Oxidation state and size of Fe controlled by organic matter in natural waters

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Abstract

In a well mixed-stream, in which the iron/organic carbon (OC) ratio varied from 0.333 to 0.05 with sampling point and discharge, 40-70% of the Fe load was found to be present as lightly bound Fe(II). In laboratory simulations of streamwater, after 24 h of aeration at pH 6.5, and with an Fe/OC concentration ratio of 0.417, 97% of Fe(II) was converted to Fe(III) (hydr)oxides, while at a ratio of 0.083, 87% of Fe(II) remained unoxidized. The particle size distribution of Fe contained

Bibliographical metadata

Original languageEnglish
Pages (from-to)3575-3581
Number of pages6
JournalEnvironmental Science and Technology
Volume42
Issue number10
DOIs
Publication statusPublished - 15 May 2008

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