TY  - JOUR
A1  - Noubactep, C.
A1  - Schöner, A.
T1  - Metallic iron for environmental remediation: learning from electrocoagulation.
Y1  - 2010-03-15
VL  - 175
IS  - 1-3
SP  - 1075
EP  - 1080
JF  - Journal of hazardous materials
DO  - 10.1016/j.jhazmat.2009.09.152
DO  - 10.23689/fidgeo-2773
N2  - 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.
UR  - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/7086
ER  -