Use of carbon steel ball bearings to determine the effect of biocides and corrosion inhibitors on microbiologically influenced corrosion under flow conditions

Applied Microbiology and Biotechnology
Tijan PinnockGerrit Voordouw

Abstract

A consortium of sulfate-reducing bacteria consisting mostly of Desulfovibrio, Desulfomicrobium, and Desulfocurvus from oil field produced water was cultivated in a chemostat, receiving medium with 20 mM formate and 10 mM sulfate as the energy and 1 mM acetate as the carbon source. The chemostat effluent, containing 5 mM sulfide and 0.5 mM of residual acetate, was passed through 1-ml syringe columns with 60 carbon steel ball bearings (BBs) of 53.6 ± 0.1 mg each at a flow rate of 0.8 ml/h per column. These were treated every 5 days with 1.6 ml of 300 ppm of glutaraldehyde (Glut), tetrakis(hydroxymethyl)phosphonium sulfate (THPS), benzalkonium chloride (BAC), or Glut/BAC, a mixture of Glut and BAC. Alternatively, BBs were treated with 33% (v/v) of a water-soluble (CR_W) or an oil-soluble (CR_O1 or CR_O3) corrosion inhibitor for 20 s after which the corrosion inhibitor was drained off and BBs were packed into columns. The effluent of untreated control columns had no acetate. Treatment with the chemically reactive biocides Glut and THPS, as well as with Glut/BAC, gave a transient increase of acetate indicating decreased microbial activity. This was not seen with BAC alone indicating it to be the least effective biocide. Relative to ...Continue Reading

References

Feb 27, 2004·Nature·Hang T DinhFriedrich Widdel
Mar 1, 1993·Applied and Environmental Microbiology·E E Roden, D R Lovley
Sep 26, 2006·Applied and Environmental Microbiology·E Anne GreeneGerrit Voordouw
Jan 6, 2009·Journal of Applied Microbiology·C O ObuekweE S Al-Saleh
Dec 17, 2009·Environmental Science & Technology·Gerrit VoordouwJoseph J Arensdorf
May 3, 2013·Applied Microbiology and Biotechnology·Kathleen E DuncanKerry Sublette
Dec 10, 2013·Applied and Environmental Microbiology·Dennis Enning, Julia Garrelfs
Nov 27, 2014·Environmental Science & Technology·Genevieve A KahrilasThomas Borch

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Datasets Mentioned

BETA
SRR5907373
SRR5907381

Methods Mentioned

BETA
X-ray
PCR
biocide
biocide treatment

Software Mentioned

PEAR
MetaAmp
DNX

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