Enzymatic Approach in Microbial-Influenced Corrosion: A Review Based on Stainless Steels in Natural Waters

The electrochemical behavior of stainless steels (SS) in natural waters is characterized by the ennoblement of their free corrosion potential (E corr). This phenomenon depends strongly on the settlement of biofilms on SS surfaces. Many hypotheses have been proposed to explain the biofilm action, in...

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Bibliographic Details
Published in:Environmental science & technology 2008-04, Vol.42 (7), p.2233-2242
Main Authors: Landoulsi, J, Kirat, K. El, Richard, C, Féron, D, Pulvin, S
Format: Article
Language:English
Subjects:
Catalysis
Chemical engineering
Chemical Sciences
Corrosion
Corrosion potential
Environmental science
Environmental Sciences
Enzymes
Enzymes - metabolism
Microbial corrosion
Microbiology
Stainless Steel
Water
Water Microbiology
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Summary:The electrochemical behavior of stainless steels (SS) in natural waters is characterized by the ennoblement of their free corrosion potential (E corr). This phenomenon depends strongly on the settlement of biofilms on SS surfaces. Many hypotheses have been proposed to explain the biofilm action, in particular the enzymatic catalysis plays an important role by shifting the cathodic and/or anodic processes. However, there are still only few studies relating the use of purified enzymes. In contrast with bacteria-associated corrosion, the direct influence of enzymes is still poorly documented. The aim of this review is to show the benefits of the enzymatic approach in the study of biocorrosion. Indeed, enzymatic systems may constitute convenient models to mimic microbial influenced corrosion and to evaluate the behavior of metallic materials in natural waters.
ISSN:0013-936X
1520-5851
DOI:10.1021/es071830g