Title: Flotation as a remediation technique for heavily polluted dredged material. 2. Characterisation of flotated fractions
Authors: Cauwenberg, P ×
Verdonckt, Francies
Maes, André #
Issue Date: Jan-1998
Series Title: The Science of the total environment vol:209 issue:2-3 pages:121-31
Abstract: The particle size distribution and the metal speciation of the heavy metals were investigated on dredged sediment and on the fractions obtained by mechanical agitated (Denver) flotation. The transition metal ions (cadmium, copper, lead and zinc) were flotated specifically independent of the particle size. Particle size analysis, EDTA extraction and sequential extracts indicated that during flotation a redistribution of metals occurred due to the oxidation of metal sulphides. This oxidation process was more pronounced when the flotation was performed at higher pH values and resulted in a decrease in flotation specificity.
ISSN: 0048-9697
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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