Abstract
In this work, the influence of Na-bentonite colloids on the transport of Cu, Pb and Zn in porous media was investigated. For the transport experiments a “short pulse” laboratory column system was used. Quartz sand served as column packing material. The metal solutions were injected into the column in the presence and absence of colloids. The quantification of metals at the column outlet was carried out by coupling the column system with an inductively coupled plasma mass spectrometer (ICP-MS). The determination of Na-bentonite colloids was done online by means of a UV detector and the ICP-MS system. Characterisation of the colloid-metal interactions was based on sorption experiments and modelling calculations carried out at pH values of 5 and 7. Furthermore the stability of Na-bentonite colloids was determined in titration experiments.
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Metreveli, G., Frimmel, F.H. (2007). Influence of Na-bentonite Colloids on the Transport of Heavy Metals in Porous Media. In: Frimmel, F.H., Von Der Kammer, F., Flemming, HC. (eds) Colloidal Transport in Porous Media. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-71339-5_2
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DOI: https://doi.org/10.1007/978-3-540-71339-5_2
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