Corrosion of Cu by a sulfate reducing bacterium in anaerobic vials with different headspace volumes

doi:10.1016/j.bioelechem.2020.107478

	Corrosion of Cu by a sulfate reducing bacterium in anaerobic vials with different headspace volumes
	Dou, Wenwen 1,2,3; Pu, Yanan 1; Han, Xiaomei 1; Song, Yi 1; Chen, Shougang 1; Gu, Tingyue 2
	2020-06-01
发表期刊	BIOELECTROCHEMISTRY
ISSN	1567-5394
卷号	133 页码:9
通讯作者	Chen, Shougang(sgchen@ouc.edu.cn) ; Gu, Tingyue(gu@ohio.edu)
摘要	Microbiologically influenced corrosion (MIC) of copper by Desulfovibrio vulgaris, a sulfate reducing bacterium (SRB), was investigated in anaerobic vials with a fixed broth volume of 40 mL but varied headspace volumes (10 mL, 85 mL 160 mL). It was found that the headspace volume variation had a very large effect on the dissolved [H2S] in the broth and the cell counts of planktonic and sessile cells, as well as Cu corrosion severity. A 16x smaller headspace led to a 1.6-fold increase in the dissolved [H2S], a 13-fold decrease in sessile SRB cell count, a 32-fold decrease in planktonic cell count and a 3.7-fold increase of Cu weight loss. SEM images revealed that different headspace volumes caused different corrosion patterns on the immersed coupons. With a lower headspace volume, pitting corrosion was observed, while with a higher headspace volume, intergranular corrosion was seen. The results confirmed that SRB MIC of Cu belongs to metabolite-MIC (M-MIC) by H2S, unlike SRB MIC of carbon steel that belongs to extracellular electron transfer-MIC (EET-MIC) that is directly correlated with sessile cell counts rather than dissolved [H2S]. (C) 2020 Elsevier B.V. All rights reserved.
关键词	Copper corrosion SRB H2S Headspace Microbiologically influenced corrosion
DOI	10.1016/j.bioelechem.2020.107478
收录类别	SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[2018M640655] ; China Postdoctoral Science Foundation[2019T120610] ; Open Fund of Shandong Key Laboratory of Corrosion Science[KLCS201903] ; China Scholarship Council ; National Natural Science Foundation of China[51572249] ; National Natural Science Foundation of China[U1806223]
WOS研究方向	Biochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics ; Biophysics ; Electrochemistry
WOS类目	Biochemistry & Molecular Biology ; Biology ; Biophysics ; Electrochemistry
WOS记录号	WOS:000531827700028
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/167482
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Chen, Shougang; Gu, Tingyue
作者单位	1.Ocean Univ China, Dept Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Ohio Univ, Inst Corros & Multiphase Technol, Dept Chem & Biomol Engn, Athens, OH 45701 USA 3.Chinese Acad Sci, Inst Oceanol, Shandong Key Lab Corros Sci, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Dou, Wenwen,Pu, Yanan,Han, Xiaomei,et al. Corrosion of Cu by a sulfate reducing bacterium in anaerobic vials with different headspace volumes[J]. BIOELECTROCHEMISTRY,2020,133:9.
APA	Dou, Wenwen,Pu, Yanan,Han, Xiaomei,Song, Yi,Chen, Shougang,&Gu, Tingyue.(2020).Corrosion of Cu by a sulfate reducing bacterium in anaerobic vials with different headspace volumes.BIOELECTROCHEMISTRY,133,9.
MLA	Dou, Wenwen,et al."Corrosion of Cu by a sulfate reducing bacterium in anaerobic vials with different headspace volumes".BIOELECTROCHEMISTRY 133(2020):9.

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