Influence of NaCl concentration on microbiologically influenced corrosion of carbon steel by halophilic archaeon Natronorubrum tibetense

Hongchang Qian; Juantao Zhang; Tianyu Cui; Lei Fan; Xudong Chen; Wenlong Liu; Weiwei Chang; Cuiwei Du; Dawei Zhang

doi:10.1016/j.bioelechem.2021.107746

Influence of NaCl concentration on microbiologically influenced corrosion of carbon steel by halophilic archaeon Natronorubrum tibetense

Bioelectrochemistry. 2021 Aug:140:107746. doi: 10.1016/j.bioelechem.2021.107746. Epub 2021 Jan 26.

Authors

Hongchang Qian¹, Juantao Zhang², Tianyu Cui³, Lei Fan², Xudong Chen¹, Wenlong Liu³, Weiwei Chang³, Cuiwei Du³, Dawei Zhang⁴

Affiliations

¹ National Materials Corrosion and Protection Data Center, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China; BRI Southeast Asia Network for Corrosion and Protection (MOE), Shunde Graduate School of University of Science and Technology Beijing, Foshan, Guangdong 528000, China.
² State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi'an, Shaanxi 710077, China.
³ National Materials Corrosion and Protection Data Center, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
⁴ National Materials Corrosion and Protection Data Center, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China; BRI Southeast Asia Network for Corrosion and Protection (MOE), Shunde Graduate School of University of Science and Technology Beijing, Foshan, Guangdong 528000, China. Electronic address: dzhang@ustb.edu.cn.

PMID: 33578300
DOI: 10.1016/j.bioelechem.2021.107746

Abstract

The influence of NaCl concentration on microbiologically influenced corrosion (MIC) of Q235 carbon steel by the halophilic archaeon Natronorubrum tibetense was investigated by immersion tests and electrochemical measurements. An increase in NaCl concentration from 0 g/mL to 0.1 g/mL promoted the anodic dissolution of carbon steel and accelerated its corrosion, but MIC did not occur. A further increase in NaCl concentration to 0.2 g/mL led to MIC in inoculated medium, and the occurrence of the MIC resulted in further aggravation of carbon steel corrosion. Once the NaCl concentration reached 0.3 g/mL, the high concentration of chloride ions greatly interfered with the adsorption of dissolved oxygen and the attachment of N. tibetense cells to the surface of carbon steel, thus reducing the corrosion rate of carbon steel and inhibiting the MIC.

Keywords: Archaea; Carbon steel; Microbiological influenced corrosion; Sodium chloride.

MeSH terms

Adsorption
Carbon / chemistry
Cell Adhesion
Corrosion
Electrodes
Halobacteriaceae / cytology*
Sodium Chloride / analysis*
Steel / chemistry*

Substances

Steel
Sodium Chloride
Carbon

Supplementary concepts

Natronorubrum