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The suitability of metallic iron for environmental remediation
Author(s) -
Noubactep Chicgoua
Publication year - 2010
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.10406
Subject(s) - environmental remediation , adsorption , corrosion , metal , environmental chemistry , zerovalent iron , aqueous solution , transformation (genetics) , chemistry , metallurgy , contamination , materials science , environmental science , chemical engineering , engineering , ecology , biochemistry , organic chemistry , gene , biology
Aqueous contaminant removal in the presence of metallic iron is often regarded as a reductive transformation mediated by the Fe 0 surface. However, successful removal of theoretically nonreducible contaminants has been largely reported. This article presents a rebuttal of the concept of contaminant reductive transformation. It is argued through a careful examination of the evolution of the volume and adsorptive properties of iron and its corrosion products that contaminants are primarily adsorbed and coprecipitated with iron corrosion products. One may wonder how the Fe 0 technology will develop with the new concept. © 2009 American Institute of Chemical Engineers Environ Prog, 2010

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