On the need for more realistic experimental conditions in laboratory-based microbiologically influenced corrosion testing

被引:28
作者
Wade, S. A. [1 ,2 ]
Javed, M. A. [1 ,2 ]
Palombo, E. A. [1 ,2 ]
McArthur, S. L. [1 ,2 ]
Stoddart, P. R. [1 ,2 ]
机构
[1] Swinburne Univ Technol, Fac Sci Engn & Technol, Mail H38,POB 218, Hawthorn, Vic 3122, Australia
[2] DMTC, Melbourne, Vic, Australia
关键词
Microbiologically influenced corrosion; Bacterial attachment; Test media; Carbon steel; SULFATE-REDUCING BACTERIA; CARBON-STEEL; MILD-STEEL; ESCHERICHIA-COLI; INITIAL ATTACHMENT; STAINLESS-STEEL; BIOFILMS; BIODETERIORATION; POLYSTYRENE; TEMPERATURE;
D O I
10.1016/j.ibiod.2017.03.027
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Microbiologically influenced corrosion (MIC) encompasses a complex suite of processes that can result in costly and dangerous acceleration of corrosion rates. However, the complexity of MIC, and the wide range of conditions in which it occurs in the natural environment, has resulted in researchers performing tests under a wide range of laboratory conditions. This scattergun approach can potentially lead to ambiguous results and can compromise the ability to compare data from different tests. Therefore there is a need for the corrosion community to develop more realistic and standardised approaches to laboratory-based testing. This paper seeks to illustrate the challenges by examining a range of test parameters that can influence the results of MIC studies, using Escherichia coli and carbon steel as a model system. The experimental parameters considered here include test media composition, immersion temperature, immersion time and medium replenishment. It is shown that each of these parameters can exert a significant effect on the outcome of the study, thus supporting the contention that more realistic testing procedures are required to develop a better understanding of MIC processes and ultimately allow predictive management of MIC. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:97 / 106
页数:10
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