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The corrosion behavior and mechanism of carbon steel induced by extracellular polymeric substances of iron-oxidizing bacteria.
- Source :
-
Corrosion Science . Jan2017, Vol. 114, p102-111. 10p. - Publication Year :
- 2017
-
Abstract
- In this work, the corrosion behavior and mechanism of carbon steel induced by extracellular polymeric substances (EPS) extracted from an iron-oxidizing bacterium culture were studied using surface analysis and electrochemical measurements in 3.5 wt% NaCl solutions. Results of electrochemical measurements showed that 7 day-old EPS at 240 mg L-1 inhibited the corrosion of carbon steel, especially after the EPS solution was heat treated to deactivate the enzymes in the EPS. However, 7 day-old EPS at much higher and much lower concentrations accelerated corrosion. Furthermore, 14 day-old EPS and 28 day-old EPS at 240 mg L-1 also accelerated corrosion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0010938X
- Volume :
- 114
- Database :
- Academic Search Index
- Journal :
- Corrosion Science
- Publication Type :
- Academic Journal
- Accession number :
- 119996672
- Full Text :
- https://doi.org/10.1016/j.corsci.2016.10.025