On the Validity of Specific Rate Constants (kSA) in Fe0/H2O Systems
Preprint2008
2009-05-30 (Erscheinungsjahr der gedruckten Vorlage)
DOI: https://doi.org/10.1016/j.jhazmat.2008.08.074
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6920
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6920
Noubactep, C., 2008: On the Validity of Specific Rate Constants (kSA) in Fe0/H2O Systems. In: Journal of Hazardous Materials, Band 164, 2-3: 835 - 837, DOI: 10.1016/j.jhazmat.2008.08.074.
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The validity of the specific reaction rate constants (k(SA)) in modelling contaminant removal in Fe-0/H2O systems is questioned. It is shown that the current k(SA)-model does not consider the large reactive surface area provided by the in-situ formed oxide film, and thus the adsorptive interactions between contaminants and film materials. Furthermore, neither the dynamic nature of film formation nor the fact that the Fe-0 surface is shielded by the film is considered. Suggestions are made how the k(SA)-model could be further developed to meet its original goal.
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- Geologie [931]