Long-term survival of Desulfovibrio vulgaris on carbon steel and associated pitting corrosion

被引：67

作者：

Chen, Yajie ^{[1
]}

Tang, Qiong ^{[1
]}

Senko, John M. ^{[2
,3
]}

Cheng, Gang ^{[1
]}

Newby, Bi-min Zhang ^{[1
]}

Castaneda, Homero ^{[1
]}

Ju, Lu-Kwang ^{[1
]}

机构：

[1] Univ Akron, Dept Chem & Biomol Engn, Akron, OH 44325 USA

[2] Univ Akron, Dept Geosci, Akron, OH 44325 USA

[3] Univ Akron, Dept Biol, Akron, OH 44325 USA

来源：

CORROSION SCIENCE | 2015年 / 90卷

关键词：

Carbon steel; SEM; Pitting corrosion; Microbiological corrosion; SULFATE-REDUCING BACTERIA; UNDERNEATH AEROBIC BIOFILMS; CENTRAL METABOLIC PATHWAYS; MILD-STEEL; HYDROGEN-SULFIDE; IRON;

D O I：

10.1016/j.corsci.2014.09.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Organic substrates may not be constantly available in the environments. It is important to know if and how sulfate reducing bacteria survive and corrode metal under organic electron donor starvation. In this study, biofilm structure of Desulfovibrio vulgaris on carbon steel and associated corrosion was examined over up to 55 days of organic starvation. Planktonic cell viability diminished rapidly but results of scanning electron microscopy and confocal laser scanning microscopy showed persistent pitting corrosion and high viability of the cells attached around or inside pits and in FeS crust. Results suggested the SRB cells survived with electrons from iron oxidation. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：89 / 100

页数：12

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