Recent advances in the study of biocorrosion - an overview
Rev. microbiol
; 30(3): 177-90, jul.-set. 1999. ilus, tab, graf
Article
in Portuguese, English
| LILACS
| ID: lil-253771
Responsible library:
BR32.1
RESUMO
Biocorrosion processes at metal surface are associated with microorganisms, or the products of their metabolic activities including enzymes, exopolymers, organic and inorganic acids, as well as volatile compounds such as ammonia or hydrogen sulfide. These can affect catholic and/or anodic reactions, thus altering electrochemistry at the biofilm/metal interface. Various mechanisms of biocorrosion, reflecting the variety of physiological activities carried out by different types of microorganisms, are identified and recent insights into these mechanisms reviewed. Many investigations have centered on the microbially-influenced corrosion of ferrous and copper alloys and particular microorganisms of interest have been the sulfate-reducing bacteria and metal (especially manganese)-depositing bacteria. The importance of microbial consortia and the role of extracellular polymeric substances in biocorrosion are emphasized. The contribution to the study of biocorrosion of modern analytical techniques, such as atomic force microscopy, Auger electron, X-ray photoelectron and Mössbauer spectroscopy, attenuated total reflectance Fourier transform infrared spectroscopy and microsensors, is discussed
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Metals
Language:
English
/
Portuguese
Journal:
Rev. microbiol
Journal subject:
Microbiology
Year:
1999
Document type:
Article
Affiliation country:
United kingdom