%0 Journal article
%A Noubactep, C.
%A Schöner, A.
%T Metallic iron for environmental remediation: learning from electrocoagulation.
%R 10.1016/j.jhazmat.2009.09.152
%R 10.23689/fidgeo-2773
%J Journal of hazardous materials
%V 175
%N 1-3

%X The interpretation of processes yielding aqueous contaminant removal in the presence of elemental iron (e.g. in Fe(0)/H(2)O systems) is subject to numerous complications. Reductive transformations by Fe(0) and its primary corrosion products (Fe(II) and H/H(2)) as well as adsorption onto and co-precipitation with secondary and tertiary iron corrosion products (iron hydroxides, oxyhydroxides, and mixed valence Fe(II)/Fe(III) green rusts) are considered the main removal mechanisms on a case-to-case basis. Recent progress involving adsorption and co-precipitation as fundamental contaminant removal mechanisms have faced a certain scepticism. This work shows that results from electrocoagulation (EC), using iron as sacrificial electrode, support the adsorption/co-precipitation concept. It is reiterated that despite a century of commercial use of EC, the scientific understanding of the complex chemical and physical processes involved is still incomplete.
%U http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/7086
%~  FID GEO-LEO e-docs