Corrosion control of mild steel by aerobic bacteria under continuous flow conditions

Kh M. Ismail, T. Gehrig, A. Jayaraman, T. K. Wood, K. Trandem, P. J. Arps, J. C. Earthman

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Corrosion of mild steel under aerobic conditions in the presence of a monoculture of aerobic bacteria (Pseudomonas fragi K [P. fragi K]) has been studied in a continuous flow system using electrochemical impedance spectroscopy (EIS). P. fragi K grown in Luria-Bertani (LB) medium causes a 10- to 20-fold decrease in the corrosion rate of mild steel after a biofilm becomes visible on the surface of the samples. Live viable bacteria are necessary for the observed corrosion reduction of mild steel, indicating an active role rather than a barrier effect of the biofilm. Flowing nitrogen through the solution was found to be less effective than P. fragi K in lowering the corrosion rate of mild steel, suggesting that an effect by bacteria, in addition to scavenging oxygen, is involved. The effect of nutrient flow rate on the ability of the bacteria to control corrosion was also examined. It was found that the corrosion inhibition of mild steel increases somewhat as the medium flow rate decreases below a certain level.

Original languageEnglish (US)
Pages (from-to)417-423
Number of pages7
JournalCorrosion
Volume58
Issue number5
DOIs
StatePublished - May 2002

Fingerprint

Aerobic bacteria
Carbon steel
Corrosion
Bacteria
Biofilms
Corrosion rate
Flow rate
Scavenging
Electrochemical impedance spectroscopy
Nutrients
Nitrogen
Oxygen

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

Cite this

Ismail, K. M., Gehrig, T., Jayaraman, A., Wood, T. K., Trandem, K., Arps, P. J., & Earthman, J. C. (2002). Corrosion control of mild steel by aerobic bacteria under continuous flow conditions. Corrosion, 58(5), 417-423. https://doi.org/10.5006/1.3277631
Ismail, Kh M. ; Gehrig, T. ; Jayaraman, A. ; Wood, T. K. ; Trandem, K. ; Arps, P. J. ; Earthman, J. C. / Corrosion control of mild steel by aerobic bacteria under continuous flow conditions. In: Corrosion. 2002 ; Vol. 58, No. 5. pp. 417-423.
@article{eb814a9005c0484c8540185e65ac58b5,
title = "Corrosion control of mild steel by aerobic bacteria under continuous flow conditions",
abstract = "Corrosion of mild steel under aerobic conditions in the presence of a monoculture of aerobic bacteria (Pseudomonas fragi K [P. fragi K]) has been studied in a continuous flow system using electrochemical impedance spectroscopy (EIS). P. fragi K grown in Luria-Bertani (LB) medium causes a 10- to 20-fold decrease in the corrosion rate of mild steel after a biofilm becomes visible on the surface of the samples. Live viable bacteria are necessary for the observed corrosion reduction of mild steel, indicating an active role rather than a barrier effect of the biofilm. Flowing nitrogen through the solution was found to be less effective than P. fragi K in lowering the corrosion rate of mild steel, suggesting that an effect by bacteria, in addition to scavenging oxygen, is involved. The effect of nutrient flow rate on the ability of the bacteria to control corrosion was also examined. It was found that the corrosion inhibition of mild steel increases somewhat as the medium flow rate decreases below a certain level.",
author = "Ismail, {Kh M.} and T. Gehrig and A. Jayaraman and Wood, {T. K.} and K. Trandem and Arps, {P. J.} and Earthman, {J. C.}",
year = "2002",
month = "5",
doi = "10.5006/1.3277631",
language = "English (US)",
volume = "58",
pages = "417--423",
journal = "Corrosion",
issn = "0010-9312",
publisher = "National Association of Corrosion Engineers",
number = "5",

}

Ismail, KM, Gehrig, T, Jayaraman, A, Wood, TK, Trandem, K, Arps, PJ & Earthman, JC 2002, 'Corrosion control of mild steel by aerobic bacteria under continuous flow conditions', Corrosion, vol. 58, no. 5, pp. 417-423. https://doi.org/10.5006/1.3277631

Corrosion control of mild steel by aerobic bacteria under continuous flow conditions. / Ismail, Kh M.; Gehrig, T.; Jayaraman, A.; Wood, T. K.; Trandem, K.; Arps, P. J.; Earthman, J. C.

In: Corrosion, Vol. 58, No. 5, 05.2002, p. 417-423.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Corrosion control of mild steel by aerobic bacteria under continuous flow conditions

AU - Ismail, Kh M.

AU - Gehrig, T.

AU - Jayaraman, A.

AU - Wood, T. K.

AU - Trandem, K.

AU - Arps, P. J.

AU - Earthman, J. C.

PY - 2002/5

Y1 - 2002/5

N2 - Corrosion of mild steel under aerobic conditions in the presence of a monoculture of aerobic bacteria (Pseudomonas fragi K [P. fragi K]) has been studied in a continuous flow system using electrochemical impedance spectroscopy (EIS). P. fragi K grown in Luria-Bertani (LB) medium causes a 10- to 20-fold decrease in the corrosion rate of mild steel after a biofilm becomes visible on the surface of the samples. Live viable bacteria are necessary for the observed corrosion reduction of mild steel, indicating an active role rather than a barrier effect of the biofilm. Flowing nitrogen through the solution was found to be less effective than P. fragi K in lowering the corrosion rate of mild steel, suggesting that an effect by bacteria, in addition to scavenging oxygen, is involved. The effect of nutrient flow rate on the ability of the bacteria to control corrosion was also examined. It was found that the corrosion inhibition of mild steel increases somewhat as the medium flow rate decreases below a certain level.

AB - Corrosion of mild steel under aerobic conditions in the presence of a monoculture of aerobic bacteria (Pseudomonas fragi K [P. fragi K]) has been studied in a continuous flow system using electrochemical impedance spectroscopy (EIS). P. fragi K grown in Luria-Bertani (LB) medium causes a 10- to 20-fold decrease in the corrosion rate of mild steel after a biofilm becomes visible on the surface of the samples. Live viable bacteria are necessary for the observed corrosion reduction of mild steel, indicating an active role rather than a barrier effect of the biofilm. Flowing nitrogen through the solution was found to be less effective than P. fragi K in lowering the corrosion rate of mild steel, suggesting that an effect by bacteria, in addition to scavenging oxygen, is involved. The effect of nutrient flow rate on the ability of the bacteria to control corrosion was also examined. It was found that the corrosion inhibition of mild steel increases somewhat as the medium flow rate decreases below a certain level.

UR - http://www.scopus.com/inward/record.url?scp=0036571805&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036571805&partnerID=8YFLogxK

U2 - 10.5006/1.3277631

DO - 10.5006/1.3277631

M3 - Article

AN - SCOPUS:0036571805

VL - 58

SP - 417

EP - 423

JO - Corrosion

JF - Corrosion

SN - 0010-9312

IS - 5

ER -