The influence of sulphate-reducing bacteria on hydrogen absorption by steel during microbial corrosion

Simple item page
dc.contributor.advisorRobinson, M. J.
dc.contributor.advisorSeal, K. J.
dc.contributor.authorParker, C. H. J.
dc.date.accessioned2023-05-25T12:38:56Z
dc.date.available2023-05-25T12:38:56Z
dc.date.issued1990-05
dc.description.abstractDuring the anaerobic corrosion of steel, hydrogen sulphide (H2S) evolution by the Sulphate-Reducing Bacteria (SRB) promotes hydrogen absorption by enhancing cathodic hydrogen evolution and inhibiting the combination of hydrogen atoms. While the effects of hydrogen damage are well known, it is unclear whether surface SRB films influence hydrogen absorption any differently to the separate effects of H2S. Also, for particularly hydrogen sensitive metals in soured environments, there is some doubt regarding what constitutes a safe but effective level of cathodic protection. Using the electrochemical technique of Devanathan and Stachurski, special apparatus were used to monitor hydrogen permeation through steel foils exposed simultaneously to cells and cell-free dialysates in batch cultures of either Desulfovibrio vulgaris (Woolwich) or Desulfovibrio desulfuricans (Norway 4). Further experiments were performed using applied potentials of -850mV (SCE) and -lOOOmV (SCE), and polarisation scans were performed on replicate steel specimens under the same conditions. Changes in pH, Eh, cell numbers and H2S levels were monitored during SRB growth.en_UK
dc.description.coursenamePhDen_UK
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19712
dc.language.isoenen_UK
dc.titleThe influence of sulphate-reducing bacteria on hydrogen absorption by steel during microbial corrosionen_UK
dc.typeThesisen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Parker_C 1990 PhD 1401184140 10832241.pdf
Size:
13.07 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Cranfield Institute of Technology - PhD, EngD, MSc, MSc by research theses, (CIT)