Distinct microbially induced concrete corrosion at the tidal region of reinforced concrete sewers.

Song, Y; Tian, Y; Li, X; Wei, J; Zhang, H; Bond, PL; Yuan, Z; Jiang, G

Distinct microbially induced concrete corrosion at the tidal region of reinforced concrete sewers.

Song, Y Tian, Y Li, X

Wei, J Zhang, H Bond, PL Yuan, Z Jiang, G

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Water Res, 2019, 150, pp. 392-402
Issue Date:: 2019-03-01

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Field	Value	Language
dc.contributor.author	Song, Y
dc.contributor.author	Tian, Y
dc.contributor.author	Li, X https://orcid.org/0000-0003-1768-9556
dc.contributor.author	Wei, J
dc.contributor.author	Zhang, H
dc.contributor.author	Bond, PL
dc.contributor.author	Yuan, Z
dc.contributor.author	Jiang, G
dc.date.accessioned	2022-09-11T20:31:23Z
dc.date.available	2018-11-28
dc.date.available	2022-09-11T20:31:23Z
dc.date.issued	2019-03-01
dc.identifier.citation	Water Res, 2019, 150, pp. 392-402
dc.identifier.issn	0043-1354
dc.identifier.issn	1879-2448
dc.identifier.uri	http://hdl.handle.net/10453/161671
dc.description.abstract	Microbially induced concrete corrosion (MICC) is a major deterioration affecting sewers worldwide. MICC is not uniform on sewer inner walls and often occurs at hot spots such as crown and tidal regions, which are critical to determine sewer service life. Especially, concrete corrosion in tidal regions is complicated due to the fluctuation of wastewater levels and the hydraulic scouring effects. The traditional methodology of corrosion monitoring also limits the study of the tidal corrosion. In this study, by using a combination of various advanced mineral analytical techniques and culture-independent 16S rRNA gene amplicon sequencing, the development of corrosion, the formation of corrosion products and the variation of microbial communities in tidal regions were investigated systematically. The physical-chemical characteristics in tidal regions varied with the distance from the wastewater surface. Above the wastewater, more severe corrosion was detected with a closer distance to wastewater, producing gypsum as the major corrosion products. The microbial succession in tidal regions occurred, with the coexistence of conventional autotrophic SOB and acidophilic heterotrophic bacteria initially, and shifting to the predominant colonization of Mycobacterium when pH reached around 1. The heterotrophic bacteria, i.e. Mycobacterium and Bacillus, were likely responsible for the observed corrosion due to the potential capability in generating sulfuric acid. The applications of advanced mineral and microbial analytical techniques were demonstrated effective in improving the understanding of concrete sewer corrosion.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Water Res
dc.relation.isbasedon	10.1016/j.watres.2018.11.083
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Bacteria
dc.subject.mesh	Corrosion
dc.subject.mesh	RNA, Ribosomal, 16S
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Water
dc.subject.mesh	Bacteria
dc.subject.mesh	RNA, Ribosomal, 16S
dc.subject.mesh	Sewage
dc.subject.mesh	Corrosion
dc.subject.mesh	Waste Water
dc.title	Distinct microbially induced concrete corrosion at the tidal region of reinforced concrete sewers.
dc.type	Journal Article
utslib.citation.volume	150
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-11T20:31:03Z
pubs.publication-status	Published
pubs.volume	150

Abstract:

Microbially induced concrete corrosion (MICC) is a major deterioration affecting sewers worldwide. MICC is not uniform on sewer inner walls and often occurs at hot spots such as crown and tidal regions, which are critical to determine sewer service life. Especially, concrete corrosion in tidal regions is complicated due to the fluctuation of wastewater levels and the hydraulic scouring effects. The traditional methodology of corrosion monitoring also limits the study of the tidal corrosion. In this study, by using a combination of various advanced mineral analytical techniques and culture-independent 16S rRNA gene amplicon sequencing, the development of corrosion, the formation of corrosion products and the variation of microbial communities in tidal regions were investigated systematically. The physical-chemical characteristics in tidal regions varied with the distance from the wastewater surface. Above the wastewater, more severe corrosion was detected with a closer distance to wastewater, producing gypsum as the major corrosion products. The microbial succession in tidal regions occurred, with the coexistence of conventional autotrophic SOB and acidophilic heterotrophic bacteria initially, and shifting to the predominant colonization of Mycobacterium when pH reached around 1. The heterotrophic bacteria, i.e. Mycobacterium and Bacillus, were likely responsible for the observed corrosion due to the potential capability in generating sulfuric acid. The applications of advanced mineral and microbial analytical techniques were demonstrated effective in improving the understanding of concrete sewer corrosion.

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http://hdl.handle.net/10453/161671