Bacterial Contribution to the Corrosion and the Protection of Metals

The metabolism of aerobic and anaerobic bacteria being very different, their influence on metal corrosion is also different. A living bacterium in nutrient media, at optimum pH and redox potential, grows very well and the corrosion disappears. The nonproteolytic, reductor and O-using bacteria are be...

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Bibliographic Details
Published in:Corrosion science 1977-09, Vol.17 (9), p.753-763
Main Authors: Guillaume, Irene, Grimaudeau, Jane, Brisou, Jean
Format: Article
Language:English
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Summary:The metabolism of aerobic and anaerobic bacteria being very different, their influence on metal corrosion is also different. A living bacterium in nutrient media, at optimum pH and redox potential, grows very well and the corrosion disappears. The nonproteolytic, reductor and O-using bacteria are best. If, however, a bacterium gives complexing products, it dies and the corrosion increases. Experiments in media saturated with O or N have proved that a bacterium decreasing the corrosion in aerobic media increases the corrosion when put in anaerobic media. Results of 21 day tests on Al are included. 6 ref.--EPAA/AF.
ISSN:0010-938X