Influence of humic substances on phosphate adsorption by aluminium and iron oxides

In order to elucidate the influence of humic substances on phosphate adsorption, the amounts of phosphate adsorbed by synthetic aluminium oxide (Al(OH) 3), ferrihydrite (Fe 5O 3(OH) 9) and goethite (α-FeOOH) were determined at different concentrations, adsorption times, origins of humic acid (HA) an...

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Bibliographic Details
Published in:Geoderma 2005-08, Vol.127 (3), p.270-279
Main Authors: Borggaard, O.K., Raben-Lange, B., Gimsing, A.L., Strobel, B.W.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Competition
Earth sciences
Earth, ocean, space
Exact sciences and technology
Ferrihydrite
Fulvic acid
Fundamental and applied biological sciences. Psychology
Goethite
Humic acid
Langmuir adsorption
Soils
Surficial geology
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Summary:In order to elucidate the influence of humic substances on phosphate adsorption, the amounts of phosphate adsorbed by synthetic aluminium oxide (Al(OH) 3), ferrihydrite (Fe 5O 3(OH) 9) and goethite (α-FeOOH) were determined at different concentrations, adsorption times, origins of humic acid (HA) and fulvic acid (FA) and order of addition of adsorbates. HA and FA were isolated from a Danish Histosol, two Podzols and an Umbrisol and used after purification for mineral matter (ash contents
ISSN:0016-7061
1872-6259
DOI:10.1016/j.geoderma.2004.12.011