Title: The lanthanum precipitation method. Part 2: Quantification of the conditional interaction constant between technetium(IV) and humic substances
Authors: Geraedts, Kathleen
Maes, AndrĂ© # ×
Issue Date: Sep-2008
Publisher: Pergamon-elsevier science ltd
Series Title: Chemosphere vol:73 issue:4 pages:491-497
Abstract: The interaction between colloidal Tc(IV) species and colloidal Gorleben humic substances (HS) was quantified after application of the La-precipitation method on supernatant solutions obtained under various experimental conditions but at constant ionic strength of the Gorleben groundwater (0.04 M). The determined interaction constant Log K-HS (2.3 +/- 0.3) remained unchanged over a large range of Tc([V) and HS concentrations and was independent of the pH of the original supernatant solution (pH range 6-10), Tc(IV)-HS loading (10(-3) - 10(-6) mol Tc g(-1) HS) and the nature of the reducing surface (Magnetite, Pyrite and Gorleben sand) used for the pertechnetate reduction.
ISSN: 0045-6535
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Biomechanics Section
Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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