journal article·2007-10Open access

Discriminating bacterial from electrochemical corrosion using Fe isotopes

Elena Hutchens, Ben J. Williamson, Mahesh Anand, Mary P. Ryan, Richard J. Herrington

Corrosion Science· Volume 49· Issue 10

Abstract

Metal corrosion is microbially induced (MIC) and/or electrochemical (ECC) in origin. Here we provide a novel approach to distinguish MIC from ECC, using iron isotope fingerprinting technique . In laboratory experiments, MIC products of Fe in the presence of a pure strain of Thiomonas sp. WJ68 exhibit a major shift in Fe isotope ratios ( δ 56/54 Fe and δ 57/54 Fe, by 1.26 and 1.95‰, respectively) compared to ECC products formed under identical but sterile conditions . The methodology has applications in a broad range of industrial environments, particularly in the petrochemicals sector.
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Research context

OpenAlex topics: Corrosion Behavior and Inhibition · Chromium effects and bioremediation · Metal Extraction and Bioleaching

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